EV8712-L-00A

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High Efficiency,12A,18V, Synchronous Step-Down Converter EV8712-L-00A Rev. 1.0 www.MonolithicPower.com 1 6/29/2016 MPS Proprietary Information. Patent Protec ted. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. The Future of Analog IC Technology

DESCRIPTION

The EV8712-L-00A is used for demonstrating the performance of MPS’s MP8712. MP8712 is a highly integrated and high frequency synchronous step-down switch-mode converter. It offers a fully integrated solution to achieve a 12A continuous and 15A peak output current with excellent load and line regulation over a wide input supply range. COT control operation provides fast transient response and eases loop stabilization. An open drain power good pin indicates that the output voltage is in the nominal range. Full protection features include over voltage, over-current protection and thermal shut down. The MP8712 is available in QFN- 14(3mmx4mm) package. ELECTRICAL SPECIFICATION Parameter Symbol Value Units Input Voltage V IN 3– 18 V Output Voltage V OUT 1 V Continuous Output Current I OUT 12 A Peak Output Current I OUT 15 A

FEATURES

 Wide 3V-to-18V Operating Input Range  12A Continuous/15A Peak Output Current  1% Internal Reference Accuracy  Output Adjustable from 0.6V  15m Ω/4.5mΩ High Side/Low Side RDS(ON) for Internal Power MOSFETs  500kHz Switching Frequency  External Soft Start  Open Drain Power Good Indication  Output Over Voltage Protection  Hiccup OCP Protection  Thermal Shutdown  QFN-14(3mmx4mm) Package

APPLICATIONS

 Solid State Driver (SSD)  Flat-Panel Television and Monitors  Set-Top Boxes  Distributed Power Systems All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. EV8712-L-00A EVALUATION BOARD (4 layer PCB, 8.5cmх8.5cm) Board Number MPS IC Number EV8712-L-00A MP8712GL 0.01 0.1 1 10 100 100

EV8712-L-00A – 12A HIGH EFFICIENCY SYNC. STEP DOWN CONVERTER EV8712-L-00A Rev. 1.0 www.MonolithicPower.com 2 6/29/2016 MPS Proprietary Information. Patent Protec ted. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. EVALUATION BOARD SCHEMATIC 499K NS EV8712-L-00A BILL OF MATERIALS Qty Ref Value Description Package Manufacturer Manufacturer P/N 1 R1 80.6k Film Res,1% 0603 ROYAL RC0603FR-0780K6L

1 R2 120k Film Res,1% 0603 ROYAL RL0603FR-07120KL

1 R3 0 Ω Film Res,1% 0603 ROYAL RC0603FR-070RL

1 R4 10k Film Res,1% 0603 ROYAL RL0603FR-0710KL

1 R5 499k Film Res,1% 0603 ROYAL RL0603FR-07499KL

0 R6 NS

1 R7 100k Film Res,1% 0603 ROYAL RL0603FR-07100KL

2 C1, C3 0.1 μF Ceramic Cap, 25V,X7R 0603 muRata GRM188R71E104KA01D

2 C1A,C1B, 22 μF Ceramic

Cap,25V,X5R 1206 muRata GRM31CR61E226KE15L

4 C2,C2A,

C2B,C2C 22μF Ceramic Cap ， 25V,X5R 0805 muRata GRM21BR61E226ME44L

0 C1C,C1D,

C2D,C2E NS

1 C4 22pF Ceramic Cap,

50V, X7R 0603 muRata GRM1885C1H220JA01D 1 C5 0.47 μF Ceramic Cap,16V,X7R 0603 muRata GRM188R71C474KA88D

1 C6 22nF Ceramic

Cap,16V,X7R 0603 muRata GRM188R71C223KA01D 1 L1 1.5 μH Inductor, DCR=2.1mΩ SMD Wurth 7443320150

1 U1 MP8712 Step-Down Converter QFN14

(3*4) MPS MP8712GL

EV8712-L-00A – 12A HIGH EFFICIENCY SYNC. STEP DOWN CONVERTER EV8712-L-00A Rev. 1.0 www.MonolithicPower.com 3 6/29/2016 MPS Proprietary Information. Patent Protec ted. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. EVB TEST RESULTS Performance waveforms are tested on the evaluation board. VIN = 12V, VOUT = 1V, L = 1.5µH, FS = 500kHz, TA = 25°C, unless otherwise noted. REFERENCE VOLTAGE (mV) Disabled Supply Current vs. Input Voltage VIN UVLO Rising vs. Temperature Reference Voltage vs. Temperature Line Regulation vs. Input Voltage VOUT=1V EN Rising Threshold vs. Temperature INPUT VOLTAGE (V) INPUT VOLTAGE (V) VIN UVLO RISING (V) EN RISING THRESHOLD (V) INPUT VOLTAGE (V) Enabled Supply Current vs. Input Voltage 100 150 200 250 300 350 400 450 500 -40-25-10 5 20 35 50 65 80 95110125 1.195 1.2 1.205 1.21 1.215 1.22 1.225 592 594 596 598 600 602 604 606 608 -0.8 -0.6 -0.4 -0.2 0.2 0.4 0.6 0.8 0.01 0.1 1 10 100 OUTPUT CURRENT (A) -40-25-10 5 20 35 50 65 80 95110125 -40-25-10 5 20 35 50 65 80 95110125 3 6 9 1 21 51 8 VIN=4.5V VIN=12V OUTPUT CURRENT (A) OUTPUT CURRENT (A) 100 VIN=18V 0.01 0.1 1 10 100 VIN=4.5V VIN=12V 100 VIN=18V 0.01 0.1 1 10 100 100 VIN=4.5V VIN=12V VIN=18V 3456789 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 3456789 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 2.805 2.81 2.815 2.82 2.825 2.83 2.835 2.84 2.845 2.85 2.855 IOUT=0A IOUT=6A IOUT=12A

EV8712-L-00A – 12A HIGH EFFICIENCY SYNC. STEP DOWN CONVERTER EV8712-L-00A Rev. 1.0 www.MonolithicPower.com 4 6/29/2016 MPS Proprietary Information. Patent Protec ted. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. EVB TEST RESULTS (continued) Performance waveforms are tested on the evaluation board. VIN = 12V, VOUT = 1V, L = 1.5µH, FS = 500kHz, TA = 25°C, unless otherwise noted. OUTPUT CURRENT (A) Load Regulation vs. Output Current VOUT=1V OUTPUT CURRENT (A) OUTPUT CURRENT (A) OUTPUT CURRENT (A) OUTPUT CURRENT (A) -1.6 -1.2 -0.8 -0.4 0.4 0.8 1.2 1.6 02468 1 0 1 2 VIN=18V VIN=4.5V VIN=12V OUTPUT CURRENT (A) Load Regulation vs. Output Current VOUT=1.2V -1.6 -1.2 -0.8 -0.4 0.4 0.8 1.2 1.6 02468 1 0 1 2 VIN=18V VIN=4.5V VIN=12V OUTPUT CURRENT (A) Load Regulation vs. Output Current VOUT=2.5V -1.6 -1.2 -0.8 -0.4 0.4 0.8 1.2 1.6 02468 1 0 1 2 VIN=18V VIN=4.5V VIN=12V OUTPUT CURRENT (A) Load Regulation vs. Output Current VOUT=1.8V -1.6 -1.2 -0.8 -0.4 0.4 0.8 1.2 1.6 02468 1 0 1 2 VIN=18V VIN=4.5V VIN=12V OUTPUT CURRENT (A) Load Regulation vs. Output Current VOUT=1.5V -1.6 -1.2 -0.8 -0.4 0.4 0.8 1.2 1.6 02468 1 0 1 2 VIN=18V VIN=4.5V VIN=12V 0.01 0.1 1 10 100 100 0.01 0.1 1 10 100 VIN=12V 100 0.01 0.1 1 10 100 100 0.01 0.1 1 10 100 VIN=7V VIN=12V 100 VIN=4.5V VIN=12V VIN=18V VIN=4.5V VIN=18V VIN=5V VIN=18V VIN=12V VIN=18V

EV8712-L-00A – 12A HIGH EFFICIENCY SYNC. STEP DOWN CONVERTER EV8712-L-00A Rev. 1.0 www.MonolithicPower.com 5 6/29/2016 MPS Proprietary Information. Patent Protec ted. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. EVB TEST RESULTS (continued) Performance waveforms are tested on the evaluation board. VIN = 12V, VOUT = 1V, L = 1.5µH, FS = 500kHz, TA = 25°C, unless otherwise noted. OUTPUT CURRENT (A) Case Temperature Rise vs. Output Current OUTPUT CURRENT (A) Load Regulation vs. Output Current VOUT=5V -1.6 -1.2 -0.8 -0.4 0.4 0.8 1.2 1.6 02468 1 0 1 2 VIN=18V VIN=4.5V VIN=12V OUTPUT CURRENT (A) Load Regulation vs. Output Current VOUT=3.3V -1.6 -1.2 -0.8 -0.4 0.4 0.8 1.2 1.6 02468 1 0 1 2 VIN=18V VIN=4.5V VIN=12V 02468 1 0 1 2 1 4

EV8712-L-00A – 12A HIGH EFFICIENCY SYNC. STEP DOWN CONVERTER EV8712-L-00A Rev. 1.0 www.MonolithicPower.com 6 6/29/2016 MPS Proprietary Information. Patent Protec ted. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. EVB TEST RESULTS (continued) Performance waveforms are tested on the evaluation board. VIN = 12V, VOUT = 1V, L = 1.5µH, FS = 500kHz, TA = 25°C, unless otherwise noted. VOUT/AC 10mV/div. VIN/AC 20mV/div. VSW 5V/div. IL 2A/div. VOUT/AC 10mV/div. VIN/AC 20mV/div. VSW 10V/div. IL 2A/div. Input/Output Ripple IOUT = 0A Input/Output Ripple IOUT = 0A Input/Output Ripple IOUT = 12A VOUT/AC 10mV/div. VIN/AC 200mV/div. VSW 10V/div. IL 10A/div. Shutdown through Input Voltage IOUT = 0A Start-Up through EN IOUT = 0A VOUT 500mV/div. VPG 5V/div. VIN 10V/div. VSW 10V/div. IL 5A/div. Shutdown through Input Voltage IOUT = 12A VOUT 500mV/div. VPG 5V/div. VIN 5V/div. VSW 10V/div. IL 10A/div. VOUT 500mV/div. VPG 5V/div. VEN 5V/div. VSW 10V/div. IL 5A/div. Start-Up through Input Voltage IOUT = 0A Start-Up through Input Voltage IOUT = 12A VOUT 500mV/div. VPG 5V/div. VIN 10V/div. VSW 10V/div. IL 5A/div. VOUT 500mV/div. VPG 5V/div. VIN 10V/div. VSW 10V/div. IL 10A/div. Start-Up through EN IOUT = 12A VOUT 500mV/div. VPG 5V/div. VEN 5V/div. VSW 10V/div. IL 10A/div.

EV8712-L-00A – 12A HIGH EFFICIENCY SYNC. STEP DOWN CONVERTER EV8712-L-00A Rev. 1.0 www.MonolithicPower.com 7 6/29/2016 MPS Proprietary Information. Patent Protec ted. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. EVB TEST RESULTS (continued) Performance waveforms are tested on the evaluation board. VIN = 12V, VOUT = 1V, L = 1.5µH, FS = 500kHz, TA = 25°C, unless otherwise noted. Shutdown through EN IOUT = 0A VOUT 500mV/div. VPG 5V/div. VEN 5V/div. VSW 10V/div. IL 2A/div. Shutdown through EN IOUT = 12A VOUT 500mV/div. VPG 5V/div. VEN 5V/div. VSW 10V/div. IL 10A/div. VOUT/AC 50mV/div. IOUT 5A/div. Load Transient IOUT = 6A-12A Short-Circuit Protection Entry IOUT = 0A VOUT 1V/div. VPG 5V/div. VSW 10V/div. IL 10A/div. Short-Circuit Protection Recovery IOUT = 0A VOUT 1V/div. VPG 5V/div. VSW 10V/div. IL 10A/div. Short-Circuit Protection Steady State Short Output to GND VOUT 1V/div. VPG 5V/div. VSW 10V/div. IL 10A/div.

EV8712-L-00A – 12A HIGH EFFICIENCY SYNC. STEP DOWN CONVERTER NOTICE: The information in this document is subject to change wi thout notice. Please contact M PS for current specifications. Users should warrant and guarantee that third party Intellectual Property rights ar e not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. EV8712-L-00A Rev. 1.0 www.MonolithicPower.com 9 6/29/2016 MPS Proprietary Information. Patent Protec ted. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. QUICK START GUIDE 1. Connect the positive and negative terminals of the load to the VOUT and GND pins, respectively. 2. Preset the power supply output between 3V and 18V, and then turn off the power supply. 3. Connect the positive and negative terminals of the power supply output to the VIN and GND pins, respectively. 4. Turn the power supply on. The board will automatically start up. 5. To use the Enable function, apply a digital input to the EN pin. Drive EN higher than 1.5V to turn on the regulator, or less than 1.0V to turn it off.