EV5403-QB-02A High Efficiency Dual Buck and One Load Switch Power Management Unit EV Board The Future of Analog IC Technology DESCRIPTION FEATURES The EV5403-QB-02A Evaluation Board is designed to demonstrate the capabilities of MPS’ MP5403. The MP5403 is a monolithic power management unit containing two high efficiency step-down switching converters and a load switch. The two regulators supply current up to 3.5A and 2.5A separately and the load switch supplies up to 3A load current with extremely low RON resistance. With the input range up to 6V, the MP5403 is ideal for powering ASIC and SOC for Solid-State Drive or other compact power systems. The MP5403 requires a minimum number of readily available standard external components and is available in a small QFN20 (2.5mmx3mm) package. ELECTRICAL SPECIFICATION Parameter Symbol Value Units Input Voltage Output Voltage Output Current VIN1/ VIN2 2.7 – 6 V VOUT1/VOUT2 1.2/1.2 V IOUT1/IOUT2 3.5/2.5 A Up to 6V Operating Input Range Low IQ: 85µA for Two Switchers Totally Two Buck Converters: 3.5A with 55mΩ/20mΩ RDSON 2.5A with 65mΩ/22mΩ RDSON 1.5MHz Switching Frequency One Load Switch with 20mΩ RON 3A with 20mΩ RDSON Soft Start and Output Discharge Over Current Protection Input Power Good Indicator with Adjustable Threshold and Delay Thermal Shutdown Available in a QFN20 (2.5mmx3mm) Package APPLICATIONS Solid-State Drive Portable Instruments Battery-Powered Devices All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Products, Quality Assurance page. “MPS” and “The Future of Analog IC Technology”, are Registered Trademarks of Monolithic Power Systems, Inc. EV5403-QB-02A EVALUATION BOARD (L x W x H) 6.5cm x 6.5cm x 1.6cm Board Number MPS IC Number EV5403-QB-02A MP5403 EV5403-QB-02A Rev.1.0 www.MonolithicPower.com 2/6/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 1 EV5403-QB-02A – DUAL BUCK AND ONE LOAD SWITCH PMIC EVALUATION BOARD SCHEMATIC U1 7 PFL 6 EN1 5 EN2 4 EN3 3 PG3 2 PG2 1 PG1 3 VIN1 C1C C1A C1B 22uF 0.1uF 22uF VIN1 SW1 GND GND C2 GND Vout1 6 7 R2A 300K VIN2 C5A C5B 22uF 22uF 22uF F1 GND NS GND VIN3 18 C3 PFL Test Point 10uF VIN1 MP5403 R6 R7 R8 100K EN1 9 EN1 100K EN2 10 EN2 100K EN3 11 EN3 R11 R10 R9 100K PG1 15 PG1 100K PG2 16 PG2 100K PG3 17 PG3 1uF SW2 GND 12 L2 1uH Vout2 300K R1B FB2 8 R2B 300K GND 13 PFL ADJ 2 V_SUS PFL_ADJ C7 R4 R12 NS GND VIN3 GND R3 100K L1 1uH R1A 300K FB1 VIN2 14 SW1 OUT3 NS C8 GND GND 10pF GND PFL R5 C4A C4B 22uF 22uF GND GND 19 C6A C6B 10uF NS GND Vout3 GND 100K GND VIN1 EV5403-QB-02A BILL OF MATERIALS Qty 2 7 2 1 1 1 4 8 1 1 Ref Value Description Package Manufacturer Part Number L1, L2 1μH Inductor, ±20% SMD Wurth 744 373 240 10 C1A, C1C, C2, C4A, 22μF Ceramic Capacitor, 10V, X5R 0805 muRata GRM21BR61A226ME51L C4B, C5A, C5B C3, C6A 10μF Ceramic Capacitor, 10V, X5R 0805 muRata GRM21BR61A106KE19L C7 1μF Ceramic Capacitor, 16V, X7R 0603 muRata GRM21BR71C105KA01L C1B 0.1μF Ceramic Capacitor, 16V, X7R 0603 muRata GRM219R71C104KA01D C8 10pF Ceramic Capacitor, 50V, COG 0603 muRata GRM1885C1H100JA01D R1A, R1B, 300kΩ Film Res,1% 0603 ROYAL RL0603FR-07300KL R2A, R2B R3, R5, R6, R7, 100kΩ Film Res,5% 0603 Any Any R8, R9, R10, R11 Dual buck and one load U1 MP5403 QFN20 MPS MP5403 switch PWIC CN1 1X7 PINS, 2.54mm Any Any EV5403-QB-02A Rev.1.0 www.MonolithicPower.com 2/6/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 2 EV5403-QB-02A – DUAL BUCK AND ONE LOAD SWITCH PMIC EVB TEST RESULTS Performance waveforms are tested on the evaluation board. VIN1 = VIN2=5V, VOUT1 = VOUT2 =1.2V, L1 = L2 =1μH, TA = 25ºC, unless otherwise noted. VOUT1/AC 50mV/div. VOUT1/AC 20mV/div. VSW1 2V/div. VOUT2/AC 50mV/div. VSW1 2V/div. VOUT2/AC 20mV/div. VIN1 5V/div. VSW2 5V/div. VSW2 2V/div. IL 2A/div. VOUT1 1V/div. VOUT1 1V/div. VIN1 5V/div. VIN1 5V/div. VSW1 2V/div. VSW1 2V/div. VOUT1 1V/div. VSW1 2V/div. VOUT1 1V/div. VIN1 5V/div. VSW1 2V/div. IL 5A/div. IL1 5A/div. VOUT1 1V/div. VOUT1 1V/div. VEN1 5V/div. VEN1 5V/div. VSW1 2V/div. VSW1 2V/div. VSW1 2V/div. IL1 2A/div. IL1 5A/div. IL1 2A/div. IL1 2A/div. VOUT1 1V/div. VEN1 5V/div. EV5403-QB-02A Rev.1.0 www.MonolithicPower.com 2/6/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 3 EV5403-QB-02A – DUAL BUCK AND ONE LOAD SWITCH PMIC EVB TEST RESULTS (continued) Performance waveforms are tested on the evaluation board. VIN1 = VIN2=5V, VOUT1 = VOUT2 =1.2V, L1 = L2 =1μH, TA = 25ºC, unless otherwise noted. VOUT2 1V/div. VOUT1 1V/div. VOUT2 1V/div. VEN1 5V/div. VIN2 5V/div. VSW1 2V/div. VSW2 2V/div. IL1 5A/div. IL2 2A/div. IL2 2A/div. VOUT2 1V/div. VOUT2 1V/div. VOUT1/AC 100mV/div. VEN2 5V/div. VEN2 5V/div. VIN2 5V/div. VSW2 2V/div. VSW1 5V/div. VSW2 2V/div. VSW2 2V/div. IL2 2A/div. IL2 2A/div. IOUT1 2A/div. VOUT2/AC 100mV/div. VOUT1 1V/div. VOUT2 1V/div. VIN1 5V/div. VIN2 5V/div. VSW1 2V/div. VSW2 2V/div. IL1 2A/div. IL2 2A/div. VSW2 5V/div. IOUT2 1A/div. EV5403-QB-02A Rev.1.0 www.MonolithicPower.com 2/6/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 4 EV5403-QB-02A – DUAL BUCK AND ONE LOAD SWITCH PMIC EVB TEST RESULTS (continued) Performance waveforms are tested on the evaluation board. VIN1 = VIN2=5V, VOUT1 = VOUT2 =1.2V, L1 = L2 =1μH, TA = 25ºC, unless otherwise noted. VOUT/AC 20mV/div. VIN 5V/div. VOUT/AC 20mV/div. VIN 5V/div. VOUT 1V/div. VIN 5V/div. VSW 2V/div. VSW 2V/div. VSW 2V/div. IL 1A/div. IL 5A/div. IL 5A/div. VOUT3 5V/div. VOUT3 5V/div. VOUT3 5V/div. VIN3 5V/div. VIN3 5V/div. VIN3 5V/div. VPG3 5V/div. VPG3 5V/div. VPG3 5V/div. IOUT3 2A/div. IOUT3 2A/div. IOUT3 2A/div. VOUT3 5V/div. VOUT3 5V/div. VOUT3 5V/div. VIN3 5V/div. VEN3 5V/div. VEN3 5V/div. VPG3 5V/div. VPG3 5V/div. VPG3 5V/div. IOUT3 2A/div. IOUT3 2A/div. IOUT3 2A/div. EV5403-QB-02A Rev.1.0 www.MonolithicPower.com 2/6/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 5 EV5403-QB-02A – DUAL BUCK AND ONE LOAD SWITCH PMIC PRINTED CIRCUIT BOARD LAYOUT Figure 1—Top Silk Layer Figure 2—Top Layer Figure 3—Bottom Layer EV5403-QB-02A Rev.1.0 www.MonolithicPower.com 2/6/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 6 EV5403-QB-02A – DUAL BUCK AND ONE LOAD SWITCH PMIC QUICK START GUIDE The output voltage of this board is set externally by operating from +2.7V to +6V for VIN1, +2V to +6V for VIN2(if VIN1>2.7V) and +0.5V to +6V for VIN3(if VIN1>2.7V). The default output voltage of this board is set to VOUT1=1.2V, VOUT2=1.2V. 1. Preset Power Supply to 2.7V VIN1 6V, 2V VIN2 6V, 0.5V VIN3 6V. 2. Turn Power Supply off. 3. Connect Power Supply terminals to: a. Positive (+): VIN1, VIN2, VIN3(connect to VIN1 or VIN2 or external power) b. Negative (–): GND 4. Connect Load to: a. Positive (+): VOUT1 b. Negative (–): GND c. Positive (+): VOUT2 d. Negative (–): GND e. Positive (+): VOUT3 f. Negative (–): GND 5. Turn Power Supply on after making connections. 6. To enable the MP5403, apply a voltage, 1.3V VEN 6V, to the EN pin. To disable the MP5403, apply a voltage, VEN <0.4V, to the EN pin. The EN pin can be connected to VIN with a 100kΩ resistor for automatic startup. 7. The output voltage VOUT can be changed by varying R2A or R2B. Calculate the new value by formula: R2A(orR2B) R1A(orR1B) VOUT 1 0.6V Figure 4 NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. EV5403-QB-02A Rev.1.0 www.MonolithicPower.com 2/6/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. 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