MPDRX312S DATA Sheet 1 DC-DC Converter DATA Sheet MPDRX312S 1. Features ･Ultra high-speed response is realized by using original ripple detecting control. ･Up to 16A output current, non-isolated POL. ･Wide adjustable output voltage range by connecting external resistance (0.8V to 1.8V). o o ･Wide operating temperature（-40 C to +85 C）. ･UVLO function, ON/OFF function, Output voltage sense function, Over-current function and, PowerGood signal output function are built in. 2. Appearance, Dimensions 15.4±0.2 12 11 □□□ ①②③ S Z ( )…reference value P=2.54 ±0.2mm M Tolerance is not accumulated. 1 22 4.2max. Marking (1) Pin No.1 Marking / MFG ID (2) Parts No. SZ (3) Lot No. □□□ ①②③ ①Production factory Mark ②Production Year ③Production Month（1,2,3,…9,O,N,D） N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 P P P P P P P P P P P P P P P P P P P P 27.8±0.2 MPDRX312S DATA Sheet 2 Pin Number and Function Pin No. Symbol Function 2 SENSE Output voltage sense 3,4,5 Vout Output 6,7,8,9, GND GND 16,17,18 10 FT Output trim 11 VAR Output voltage adjustment 12,13,14,15 Vin Input 1 OVPOUT Output Over-voltage Alarm 19 SS Soft start 20 N.C. Non connection 21 PWRGOODPower Good 22 ON/OFF Remote ON/OFF 3. Block Diagram Vin Vout 12,13,14,15 3,4,5 SENSE 2 GND GND 16,17,18 6,7,8,9 ON/OFF VAR 22 11 PG. 21 Control Unit N.C. 10 20 FT 19 SS 1 OVPOUT 4. Environmenral Conditions 4.1. Operating Temperature Range -40°C ~ +85°C 4.2. Storage Temperature Range -40°C ~ +85°C 4.3. Operating Humidity Range 20% ~ 85% （No water condenses in any cases.） 4.4. Storage Humidity Range 10% ~ 90% （No water condenses in any cases.） 5. Absolute Maximun Rating Item Unit Absolute Rating Remarks Minimum Input Voltage V 0 SENSE, VAR, FT, ON/OFF, SS V Vin PWRGOOD Pin Voltage Maximum POW-GOOD Sink Current mA 1 No voltage, no matter how instantaneous, shall be applied beyond the absolute maximum voltage rating to this product. If you apply any voltage over this limit the product characteristics will deteriorate or the product itself will be destroyed. Even though it may continue operating for a while after the over-voltage event, its life will likely be shortened significantly. Reliability and life of the module may degrade similarly if the maximum operating voltage rating is continuously exceeded. This product is designed to operate within the maximum operating voltage rating specification. N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 MPDRX312S DATA Sheet 3 6. Characteristics o 6.1. Electrical Characteristics (Ta=25 C) Value Item Condition Unit Symbol Min. Typ. Max. Input Voltage Range Vin 3.0 - 5.5 V Rising UVLO Threshold UVLOr Vin Increasing - 2.5 - V Falling UVLO Threshold UVLOf Vin Decreasing - 2.4 - V FT=Open 0.8 - 0.9 Output Voltage Vout V Adjustable Range FT=Short 0.9 - 1.8 Vout=0.8～0.9V -3.0 - +3.0 Over Vin, Io, FT=Open Output Voltage Tolerance Vo tol Temperature Range %Vo Vout=0.9～1.8V Rset=1% tolerance -2.5 - +2.5 FT=Short See the thermal derating curve Output Current Iout 0 - 16 A in section 6.2. Vin =3.3V, Iout=0～16A Ripple Voltage Vrpl - - 100 mV(pp) BW=20MHz, Cout=100µF Vout=0.8V - 73.5 - Efficiency EFF Vin =3.3V, Iout=16A Vout=1.2V - 79 - % Vout=1.8V - 86.5 - Vin =3.3V, Vout=1.8V - 650 - Operating Frequency Frq kHz Vin =3.3V, Vout=0.8V - 500 - PWGL Power Good low threshold - 0.87Vo - Power Good PWGH Power Good high threshold - 1.13Vo - ON/OFF pin is pulled up to Vin inside of the DC-DC converter. If ON/OFF pin is left open, the DC-DC converter shall be “ON”. This pin will be pulled down to GND ON/OFF pin High Voltage VIH inside the DC-DC converter when UVLO events occur. Please do NOT connect this pin to power supply with low impedance line, so as not to damage the converter. If ON/OFF pin is connected to ON/OFF pin Low Voltage VIL GND, the DC-DC Converter OFF 0 - 0.3 V shall be “OFF”. If output is shorted to GND, DC-DC converter will shut down. After reject the Short Circuit Protection SCP abnormal mode , DC-DC converter will - 32 - A restart by re-inputting Vin or toggling ON/OFF pin. Over Temperature o OTP Reset, Followed by Auto-Recovery - 180 - C Protection When input voltage is ideal voltage External Output Capacitor Cout 100 - 1000 µF source Rising Overshoot Vover - 0 +10 % ON/OFF High:Vin Low→High Vo=10% Td 0.1 0.5 2 msec Startup Delay SS= Open Vin High : ON/OFF Low → High/Open Trcd 0.1 0.4 2 msec RC Startup Delay Vo=10% N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 M MPDRX312S DATA Sheet 4 6.2. Thermal Derating 温度ディレーティング曲線 Thermal Derating Curve 20 16 2.0m/s 12 1.5m/s 1.0m/s 0.5m/s 8 0m/s 4 0 20 30 40 50 60 70 80 85 Ta[℃] The above derating limits apply to this product soldered directly to 101.6*180mm*1.6mm PCB. Any adjacent parts of high temperature may cause overheating. For reliable operation, please ensure that the FET temperature of this product is maintained below 120°C and the inductor temperature is below 106°C. Coil Measurement Point MOSFET Measurement Point Monitoring Point of Over Temperature Protect N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 ］ Iout[A MPDRX312S DATA Sheet 5 7. Operation information 7.1. Adjusting the Output Voltage The output voltage can be adjusted by connecting resistors between VAR-pin(11Pin) to GND-pin. The following equation gives the required external-resistor values to adjust the output voltage to Vo-adj. It is highly recommended that evaluation of the characteristics of this DC-DC converter’s operation under your board conditions be thoroughly conducted. Internal Circuit MPDRX312S (a)0.8≦ Vout ＜0.9V (FT-pin：OPEN) Vout 5440 RVAR＝ －1800 [Ω] 6.8 kΩ Vo-adj[V]－0.8[V] (b)0.9≦ Vout ≦1.8V (FT-pin：SHORT to GND) 1.8 kΩ VAR pin 5440 RVAR＝ －1800 [Ω] Vo-adj[V]－0.9[V] Error amp RVAR FT pin Vo-adj Calculated RVAR Example FT pin [V] RVAR[Ω] 1.8 4240 3.9ｋ＋330 Short to GND 1.5 7270 6.8ｋ＋470 Short to GND 1.2 16330 16ｋ＋330 Short to GND 1.0 52600 47ｋ＋5.6k Short to GND 0.9 ∞ Open Short to GND 0.8 ∞ Open Open 7.2. ON/OFF Control ON/OFF function Using the ON/OFF feature, the operation of this product can be disabled without removal of the input voltage. Sequencing of a power supply system and power-saving control can be easily achieved using this function. ON/OFF Control Operation When ON/OFF-pin(22pin) is left open …… Output Voltage =ON When ON/OFF-pin(22pin) is connected to GND …… Output Voltage=OFF MPDRX312S < Caution> example ON/OFF pin is pulled up inside of the DC-DC converter, so voltage appears up to 7V at ON/OFF GND pin. ON/OFF ON/OFF pin will be pulled down to GND inside the or DC-DC converter when UVLO events occur. Please do NOT connect this pin to power supply, so as not to damage the converter. N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 MPDRX312S DATA Sheet 6 7.3. Output voltage sensing By connecting the SENSE-pin to the load, the output voltage drop due to the PCB wiring may be compensated for (within 10cm). Vout MPDRX312S SENSE Load GND Please do NOT connect SENSE-pin to the output of LC filter that is set to the Vout line. When using this way, this product will not operate properly. Vout MPDRX312S SENSE Load GND < Caution> Please connect SENSE-pin to Vout-pin nearby the product, if sense function is not used. 7.4. Soft start function By using the soft start function, ramp-rate of the output-starting is adjustable. Adjustment range of ramp-rate is from 2 to 10ms. Ramp rate is adjusted by external capacitor between SS-pin(19pin) and GND. MPDRX312S The equation of starting time about output voltage -8 （Css+1.2×10 ）×0.8 -4 +2×10 [s] Starting time:Td＝ -6 5×10 Css Css：The capacitance of external capacitor.(F) GND 7.5. OVPOUT pin If the output voltage exceeds 20% of the point voltage, the OVPOUT pin sets out the alarm signal (High=5V). For example, in case the drain and source of high-side FET is shorted, the alarm signal appears. There is no set delay time of the alarm signal. Please leave the OVPOUT pin open, when this alarm signal function is not used. Circuit configuration is shown as follow, CMOS inverter output CMOSｲﾝﾊﾞｰﾀ出力 VREG 200k SGND OUPOUT N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 MPDRX312S DATA Sheet 7 7.6. Power Good Powergood signal is appeared within the value of clause 6.1. (Open-drain output). Output voltage is within voltage detection threshold : POW-GOOD is open. Output Voltage is out of voltage detection threshold : POW-GOOD is connected to GND. 7.7. Input External capacitor It is recommended to connect a low-impedance electrolytic capacitor of 100μF or more at Vin terminal. Smaller input capacitor may leads to an unstable operation of this product caused by input voltage fluctuation. Please check the proper operation of it on your product when smaller input capacitor is used. Using ceramic capacitors as input capacitor may cause an increase of output voltage, because input ripple current flows through the external input capacitor and wiring resistance. This phenomenon is affected by the position of external capacitors, the value of external capacitors and voltage difference between Vin and Vout. Using low-impedance electrolytic capacitor will ease this problem. Please check the proper operation of it on your product when ceramic input capacitor is used. MPDRX312S Rw×Irpl appears as additional output ripple voltage. Vin Vout Cin Ripple current Rw Wiring resistance 7.8. Output External capacitor Ceramic capacitors are recommended as output external capacitor. Using ceramic capacitors, small output variation and small ripple voltage are realized. Output capacitor should be within 100μF to 1000μF. Output capacitor shall be placed near the output terminal. When using plural capacitors, please make sure to place a capacitor of at least 100μF near the output terminal, and place other capacitors near the load. When using LC output filter, please make sure to place a capacitor of at least 100μF near the output terminal. 7.9. Parallel Operation This product is incapable of parallel operation. N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 MPDRX312S DATA Sheet 8 8. Reliability 8.1. Humidity According to JIS-C-0022. 40土 2°C, 90 to 95%RH, 100 hours. Leave for 4 hours at room temperature. No damage in appearance and no deviation from electrical characteristics (section 6.1.). 8.2. Temperature Cycles Repeat cycle 5 times. Leave 2 hours at room temp. No damage in appearance and no deviation from electrical characteristics (section 6.1.). Step Condition Time 1 -40°C±3°C 30 minutes 2 Room Temp. 5-10 minutes 3 +85°C±2°C 30 minutes 4 Room Temp. 5-10 minutes 8.3. Vibration 10 to 55Hz, 1.5mm amplitude (1minute cycle), 1 hour for each of X, Y, Z directions. No damage in appearance and no deviation from electrical characteristics (section 6.1.). 8.4. Mechanical Shock 20G, 1 time for each X, Y, Z directions. No damage in appearance and no deviation from electrical characteristics (section 6.1.). N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 MPDRX312S DATA Sheet 9 9. Test Circuit In the following test circuit, the initial values under item 6.1. should be met. 9.1. General Measure Circuit SENSE 2 Vout Vin 3,4,5 12,13,14,15 RL C2 C1 MPDRX312S GND 6,7,8,9 16,17,18 GND RVAR OVPOUT 1 VAR 11 SS 19 FT 10 N.C. 20 21 PWRGD 22 ON/OFF C1：100F／6.3V Ceramic Capacitor C2：100F／6.3V Ceramic Capacitor Please make sure to place C1 and C2 nearby input and output terminal of DC-DC converter. 9.2. Ripple Noise Measurement Circuit Coaxial cable :1.5D-2V, L=1.5m Oscilloscope Vout BW：20MHz DC-DC Converter GND Terminator （Keisokugiken TRC-50F) Ceramic Capacitor Equivalent circuit R：50 C：0.01F A: Ripple Noise Voltage Ripple Voltage B: B A Switching Period C: C N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 MPDRX312S DATA Sheet 10 10. Mounting Condition 10.1. PCB Land Pattern Recommendation 2.8 1.0 4.3 1.2 1.5 2.54 unit [mm] 9.0 5.0 10.2. Recommended Soldering Conditions Reflow Soldering This product is RoHS compliant. The following profile is recommended for the reflow of this product using Pb-free solder paste (Sn-Ag-Cu). Method : Full convection reflow soldering Reflow Soldering Profile JEDEC IPC/JEDEC J-STD-020D Table 5-2 Classification Reflow Profile Pb-Free Assembly Large Body Profile details Soldering temperature : 245ºC+0/-5ºC Soldering time : 30 seconds, 240 to 245ºC Heating time : 60 to 150 seconds, over217ºC Preheating time : 60 to 120 seconds,150 to 200ºC Programming rate : 3ºC/ sec. Max., 217 to 245ºC Descending rate : 6ºC/ sec. Max. Total soldering time : 8 minutes Max., 25 to 245ºC Times : 1 time o 245 C o 217 C Parts surface temperature [ºC] o 200 C 60～ 150 (secon ds) o 150 C (seconds) 60～120 Times N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 MPDRX312S DATA Sheet 11 ※Do not vibrate for the products on reflow. Please need to take care temperature control because mounted parts may come off if the product are left under the high temperature. Do not reflow DC-DC converter as follows, because DC-DC converter may fall down from a substrate during reflowing. Substrate DC-DC Converter N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 MPDRX312S DATA Sheet 12 11. Packaging Specification 11.1. Emboss Tape Dimensions +0.1 (4.6) 1.5 24.0±0.1 -0 0.4±0.05 2.0±0.15 4.0±0.1 (16) +0.1 1.5 -0 Pulling direction 11.2. Real Dimension 49.4±1.0 45.4±1.0 A 2.0±0.5 表示 Indication φ21.0±0.8 φ13.0±0.5 A部詳細図 Portion A N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 (29.4) 0.2 +0.1 1.7 -0 20.2±0.1 1.75±0.1 40.4±0.1 44.0±0.3 φ100±1 φ330±2 MPDRX312S DATA Sheet 13 11.3. Taping Specification 未実装部 未実装部 リーダー部 Epmty portion Epmty portion Leader portion (200mm MIN) (200mm MIN) (200mm MIN) 部品収納部 "Module on tape" portion 表示 Indication 1pin 引き出し方向 Pulling direction モジュールは部品面を上側、基板面を下側に配置します。 The module is located such as parts in upper side and PCB in lower side. 11.4. Note 1. The adhesive strength of the protective tape must be within 0.1-1N. 2. Each reel contains 300pcs. 3. The deficiency per reel is 0 piece. 4. The reel shows customer part number, Murata part number and quantity. 5. The color of reel is not designated. N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 MPDRX312S DATA Sheet 14 12. Typical Characteristics Data 12.1. Load Transient Response Our original ripple-detective control method achieves much better load transient responses. Vin=5.0V, Vo=1.8V(Fig.11-1a) , 0.8V(Fig.11-1b) o Io=8A ->16A, di/dt=1A/us, Cout=100uF(Ceramic), Ta=25 C 50mV/div Vout 50mV/div Vout Iout Iout 100us/di v 100us/di v Fig.12-1a. Load Transient Response (Vout:1.8V) Fig.12-1b.Load Transient Response (Vout:0.8V) 12.2. Output Impedance characteristics Our original ripple-detective control method achieves very low output impedance in wide frequency range. Conventional PMW Product's Output MPDRX312S RX301S/302S Output Impedance Impedance 50 100 40 80 30 60 20 40 10 20 0 0 0.1 1 10 100 0.01 0.1 1 10 100 Frquency[kHz] Frequency [kHz] Fig.12-2-1. Output Impedance of MPDRX312S Fig.12-2-2. Output Impedance of conventional product N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 Zo[mOhm] Zo [mohm] MPDRX312S DATA Sheet 15 12.3. Other electrical characteristics 12.3.1. Vout=1.8V o （Ta=25 C, Cin= GRM32EB30J107ME16, Cout= GRM32EB30J107ME16, RVAR=4240Ω） Efficiency Load　Regulation 95 1.85 90 1.84 1.82 85 1.80 80 1.78 75 1.76 70 1.75 02 46 8 10 12 14 16 0 2 4 6 8 10 12 14 16 Io [A] Io [A] Ta=25℃ Vin=3V Ta=25℃ Vin=3.3V Vin=3V Vin=3.3V Vin=4.5V Ta=25℃ Vin=4.5V Ta=25℃ Vin=5V Ta=25℃ Vin=5.5V Vin=5V Vin=5.5V Fig.12-3-1. Output Voltage v.s. Output Current Fig.12-3-2. Efficiency v.s. Output Current Output ripple voltage 50 40 30 20 10 0 0 2 4 6 8 10 12 14 16 Io [A] Vin=3V Vin=3.3V Vin=4.5V Vin=5V Vin=5.5V Fig.12-3-3. Ripple Voltage v. s. Output Current N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 Vr1(full) [mVp-p] Vo1 [V] Eff [%] MPDRX312S DATA Sheet 16 12.3.2. Vout=1.2V o （Ta=25 C, GRM32EB30J107ME16, Cout= GRM32EB30J107ME16, RVAR=16330Ω） Efficiency Load Regulation 95 1.24 90 1.22 1.21 85 1.20 80 1.19 75 1.18 70 1.16 02 46 8 10 12 14 16 02 468 10 12 14 16 Io [A] Io [A] Ta=25℃ Vin=3V Ta=25℃ Vin=3.3V Vin=3V Vin=3.3V Vin=4.5V Ta=25℃ Vin=4.5V Ta=25℃ Vin=5V Vin=5V Vin=5.5V Ta=25℃ Vin=5.5V Fig.12-3-4. Output Voltage v.s. Output Current Fig.12-3-5. Efficiency v.s. Output Current Output ripple voltage 50 40 30 20 10 0 0 2 4 6 8 1012 1416 Io [A] Vin=3V Vin=3.3V Vin=4.5V Vin=5V Vin=5.5V Fig.12-3-6. Ripple Voltage v.s. Output Current N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 Vo1 [V] Vr1(full) [mVp-p] Eff [%] MPDRX312S DATA Sheet 17 12.3.3. Vout=0.8V o （Ta=25 C, GRM32EB30J107ME16, Cout= GRM32EB30J107ME16, RVAR=OPEN） Efficiency Load　Regulation 95 0.82 0.82 90 0.81 85 0.80 80 0.79 75 0.78 70 0.78 0 2 4 6 8 10 12 14 16 0 2 4 6 8 1012 1416 Io [A] Io [A] Ta=25℃ Vin=3V Ta=25℃ Vin=3.3V Vin=3V Vin=3.3V Vin=4.5V Ta=25℃ Vin=4.5V Ta=25℃ Vin=5V Ta=25℃ Vin=5.5V Vin=5V Vin=5.5V Fig.12-3-7. Output Voltage v.s. Output Current Fig.12-3-8. Efficiency v.s. Output Current Output ripple voltage 50 40 30 20 10 0 02 468 10 12 14 16 Io [A] Vin=3V Vin=3.3V Vin=4.5V Vin=5V Vin=5.5V Fig.12-3-9. Ripple Voltage v.s. Output Current N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 Vo1 [V] Vr1(full) [mVp-p] Eff [%] MPDRX312S DATA Sheet 18 13. Notice 13.1. Please do not use a connector or a socket for connection with your board of this product. Electrical performance may be deteriorated the influence of contact resistance. Please be sure to mount this product with solder. 13.2. Be sure to provide an appropriate fail-safe function on your product to prevent a second damage that may be caused by the abnormal function or the failure of our product. 13.3. Input / Output capacitor When a inductance or a switch devise are connected to the input line, or when you use a power supply with output inductance as the input voltage source, the input voltage of the DC-DC converter will be fluctuated. By this input voltage fluctuation, the transient load response of the DC-DC converter may be deteriorated or abnormal oscillation may occur. So please confirm normal operation on each application. Please use external input capacitor in order to decrease inductance of input line. 13. 4. Wiring of input / output capacitor In the case of input / output capacitor connection, in order to reduce electrical noise, please design PCBs with consideration of the following item. ①.Please be sure to check normal operation on your system. ②.Please use low impedance capacitors with good high frequency characteristic. ③.Please shorten those leads of each capacitor as much as possible, and make sure the lead Inductance low. ④.Both input-side and output side, please make the wiring loop between plus and minus as small as possible.The influence of leakage inductance can be reduced. ⑤.Please design the print pattern of the main circuit as wide and short as possible. M ake wiring roop small Make wiring roop small +Vin +Vout out +Vin +V DC-DC Converter +Vin Load GND -Vin C1 C2 shorten the leads and pattern shorten the leads and pattern 13.5. This product should not be operated in parallel or in series. 13.6. Inrush current protection is not a feature of this product. Please be careful that surge voltage caused by wiring indcutance etc. may make the product damage when input voltage is applied suddenly to the product. 13.7. Please connect the input terminal with proper polarity. If you connect wrong polarity, the DC-DC Converter may be broken. In the case of the DC-DC Converter is damaged, abnormal input current may flow in, and abnormal overheat of the DC-DC Converter, or some damage of your products may occur. Please use a diode and a fuse to as following figure. fuse + + + Load IN OUT diode - - ※Please select diode and fuse after confirming the operation. N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 MPDRX312S DATA Sheet 19 13.8. Cleaning Please use no-cleaning type flux and do not wash this product. 13.9. Storage 13.9.1. Please store the products in room where the temperature/humidity is stable and direct sunlight cannot come in, and use the products within 6 months after delivery. Please avoid damp and heat or such places where the temperature greatly changes, as water may condense on this product, and the quality of characteristics may be reduced, and/or be the solderability may be degraded. If this product needs to be stored for a long time (more than 1 year), this product may be degraded in solderability and/or corroded. Please test the solderability of this product regularly. Baking before reflow process is unnecessary to store the products under 30℃,60%RH or less up to 6 months. In case the storage condition is over above mentioned, if these are unpacked condition, please bake them at 125℃±5℃/24hour. If these are packed in a tape, please bake them before soldering at 60℃±5℃/168hour. 13.9.2. Please do not store this product in places such as : A dusty place, a place exposed directly to sea breeze, or in an atmosphere containing corrosive gas (Cl2,NH3,SO2,NOX and so on). 13.10. Operational Environment and Operational Conditions 13.10.1. Operational Environment The products are not waterproof, chemical-proof or rust-proof. In order to prevent leakage of electricity and abnormal temperature increase of the products, do not use the products under the following circumstances: (1) in an atmosphere containing corrosive gas (Cl2, NH3, SO2, NOX and so on). (2) in a dusty place. (3) in a place exposed to direct sunlight. (4) in such a place where water splashes or in such a humid place where water condenses. (5) in a place exposed to sea breeze. (6) in any other places similar to the above (1)through (5). 13.10.2. Operational Conditions Please use the products within specified values (power supply, temperature, input, output and load condition, and so on). Input voltage drop for line impedance, so please make sure that input voltage is included in specified values. If you use the products over the specified values, it may break the products, reduce the quality, and even if the products can endure the condition for short time, it may cause degradation of the reliability. Also please take care that the external voltage over output voltage of DC-DC Converter does not applies to output of this DC-DC Converter. 13.10.3. Note prior to use If you apply high static electricity, over rated voltage or reverse voltage to the products, it may cause defects in the products or degrade the reliability. Please avoid the following items: (1) over rating power supply, reverse power supply or not-enough connection of 0 V(DC) line. (2) electrostatic discharge by production line and/or operator. (3) electrified product by electrostatic induction. Do not give an excessive mechanical shock. If you drop the products on the floor, etc., it may occur a crack to the core of inductors and monolithic ceramic capacitors. Do not give a strong shock such as a drop in handling. 13.11. Transportation If you transport the products, please pack them so that the package will not be damaged by mechanical vibration or mechanical shock, and please educate and guide a carrier to prevent rough handling. If you transport the products to overseas (in particular, by sea), it is expected that the transportation environment will be the worst, so please pack the products, in the package designed on the consideration of mechanical strength, vibration-resistant and humidity-resistant. The package of the products which Murata sells in Japan, may not resist over seas transport. Please consult us if you are to use the Murata package of the products sold in Japan for transport to overseas. N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21 MPDRX312S DATA Sheet 20 ! Note 1. Murata recommends that customers ensure that the evaluation and testing of these devices are completed with this product actually assembled on their product. 2. Please contact our main sales office or nearby sales office before using our products for the applications listed below which require especially high reliability for the prevention of defects which might directly cause damage to the third party’s life, body or property or this products for any other applications that described in the above. ①Aircraft equipment ②Aerospace equipment ③Undersea equipment ④Power plant control equipment ⑤Medical equipment ⑥Transportation equipment (vehicles, trains, ships, etc.) ⑦Traffic signal equipment ⑧Disaster prevention /crime prevention equipment ⑨Data-processing equipment ⑩Application of similar complexity and/or reliability requirements to the applications listed in the above. 3. If you have any concerned materials other than RoHS directive, please contact us. 4. About the written contents, since changing without a preliminary announcement for improvement and supply are sometimes stopped, please confirm in case of ordering. If written contents are unknown, please ask to our main sales office or nearby sales office. N ote: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2016.11.21