EVL3424A-G-00A

EVL3424A-G-00A CC/CV, Configurable-Current, Synchronous Boost Converter with Output Disconnect and Low Inrush Current Evaluation Board DESCRIPTION FEATURES The EVL3424A-G-00A is an evaluation board designed to demonstrate the capabilities of the MP3424A, a high-efficiency, current-mode, synchronous, step-up converter with output disconnect.          The MP3424A provides inrush current limiting, output short-circuit protection (SCP), and a configurable load current limit. The integrated P-channel rectifier improves efficiency and eliminates the need for an external Schottky diode. During shutdown, the P-channel MOSFET disconnects the output from the input. The 580kHz switching frequency (fSW) allows for small external components, while the internal compensation and soft start (SS) minimize the number of external components. The MP3424A is available in a QFN-14 (2mmx2mm) package. ELECTRICAL SPECIFICATIONS Parameter Input Voltage Output Voltage Output Current Symbol Value Units VIN VOUT IOUT 2.8 to 4.2 5 3.1 V V A  2V to 5.5V Operating Input Range 3V to 5.5V Output Voltage Range Supports 5V/3.1A Output from a 2.8V Input 270mA Linear Charge Inrush Current Configurable Average Load Current Limit 580kHz Fixed Switching Frequency (fSW) Up to 97% Efficiency Output Load Disconnect from Input Over-Current Protection (OCP), ShortCircuit Protection (SCP), Over-Temperature Protection (OTP) Available in a QFN-14 (2mmx2mm) Package Optimized Performance with MPS Inductor MPL-AL5030 Series APPLICATIONS      Battery-Powered Products Power Banks, Juice Packs, and Backup Batteries Optical Modules USB Power Supplies Consumer Electronic Accessories All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are trademarks of Monolithic Power Systems, Inc. or its subsidiaries. EVL3424A-G-00A EVALUATION BOARD Efficiency vs. Load Current 100 EFFICIENCY(%) 95 90 85 VIN=2.8V 80 VIN=3.3V 75 VIN=4.2V 70 0 LxWxH (6.35cmx6.35cmx0.6cm) Board Number MPS IC Number MPS Inductor EVL3424A-G-00A MP3424AGG MPL-AL5030-1R5 0.5 1 1.5 2 2.5 3 3.5 LOAD CURRENT (A) EVL3424A-G-00A Rev. 1.0 MonolithicPower.com 7/1/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 1 EVL3424A-G-00A – SYNC BOOST CONVERTER W/ OUTPUT DISCONNCT EVAL BOARD QUICK START GUIDE The EVL3424A-G-00A’s output voltage (VOUT) is set to 5V. The board layout accommodates most commonly used components. 1. Preset the power supply between 2.8V and 4.2V. 2. Turn off the power supply. 3. Connect the power supply terminals to: a. Positive (+): VIN b. Negative (-): GND 4. Connect the load terminals to: a. Positive (+): VOUT b. Negative (-): GND 5. After making the connections, turn on the power supply. The board should start up automatically. 6. The board’s VOUT is set at 5V. VOUT can be adjusted by changing the resistor (R2). Then VOUT can be calculated with Equation (1): Vout  VFB  R1  R2 R2 (1) Where VFB = 0.805V, and R1 = 1MΩ. 7. To use the enable (EN) function, apply a digital input to the EN pin. Drive EN above 1.2V to turn the converter on; drive EN below 0.4V to turn it off. EVL3424A-G-00A Rev. 1.0 MonolithicPower.com 7/1/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 2 EVL3424A-G-00A – CC/CV, SYNC, BOOST CONVERTER W/ OUTPUT DISCONNECT EVALUATION BOARD SCHEMATIC L1 MPL-AL5030-1R5 VIN C1A 22μF 1.5μH C1B 22μF SW SENSE VIN VOUT OUT EN EN MP3424A R4 2kΩ R5B 18mΩ R1 1MΩ ILIM C3 10nF R5A 16mΩ SOUT R6 100kΩ 5V/3.1A FB R3 100kΩ R2 191kΩ AGND C2A 1μF C2B 22μF C2C 22μF PGND Figure 1: Evaluation Board Schematic EVL3424A-G-00A Rev. 1.0 MonolithicPower.com 7/1/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 3 EVL3424A-G-00A – SYNC BOOST CONVERTER W/ OUTPUT DISCONNCT EVAL BOARD EVL3424A-G-00A BILL OF MATERIALS Qty 4 Ref C1A, C1B, C2B, C2C 1 C2A 1 C3 1 L1 1 1 2 1 1 1 R1 R2 R3, R6 R4 R5A R5B 1 U1 Value Description Ceramic capacitor, 16V, 22μF X7R Ceramic capacitor, 16V, 1μF X7R Ceramic capacitor, 16V, 10nF X7R Inductor, RDC = 9.7mΩ, 1.5μH ISAT = 12.5A 1MΩ Film resolution, 1% 191kΩ Film resolution, 1% 100kΩ Film resolution, 1% 2kΩ Film resolution, 1% 16mΩ Film resolution, 1% 18mΩ Film resolution, 1% Synchronous, step-up MP3424A converter with output disconnect Package Manufacturer Manufacturer PN 1210 Murata GRM32ER71C226KEA8L 0603 Murata GRM188R71C105KE15D 0603 Murata GRM188R71C103KA01D SMD MPS MPL-AL5030-1R5 0603 0603 0603 0603 0603 0603 QFN (2mmx 2mm) Yageo Yageo Yageo Yageo Yageo Yageo RC0603FR-071ML RC0603FR-07191KL RL0603FR-07100KL RC0603FR-072KL RL0603FR-070R016L RL0603FR-070R018L MPS MP3424AGG EVL3424A-G-00A Rev. 1.0 MonolithicPower.com 7/1/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 4 EVL3424A-G-00A – SYNC BOOST CONVERTER W/ OUTPUT DISCONNCT EVAL BOARD EVB TEST RESULTS VIN = 3.3V, VOUT = 5V, L = 1.5μH, TA = 25°C, unless otherwise noted. Line Regulation Efficiency vs. Load Current 100 LINE REGULATION (%) EFFICIENCY(%) 95 90 85 VIN=2.8V 80 VIN=3.3V 75 VIN=4.2V 70 0 0.5 1 1.5 2 2.5 3 1 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1 Io=0A Io=1.5A Io=3.1A 2 3.5 2.5 3 LOAD REGULATION (%) 0.6 0.4 0.2 0 -0.2 -0.4 VIN=2.8V VIN=3.3V VIN=4.2V -0.6 -0.8 -1 1.5 5 5.5 2 2.5 OUTPUT CURRENT (A) 3 3.5 45 VIN=2.8V VIN=4.2 40 35 30 (℃) CASE TEMPERATURE RISING 1 0.8 1 4.5 Case Temperature Rise vs. Load Current Load Regulation 0.5 4 VIN (V) LOAD CURRENT (A) 0 3.5 25 20 15 10 5 0 0 1 2 3 LOAD CURRENT (A) EVL3424A-G-00A Rev. 1.0 MonolithicPower.com 7/1/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 4 5 EVL3424A-G-00A – SYNC BOOST CONVERTER W/ OUTPUT DISCONNCT EVAL BOARD EVB TEST RESULTS (continued) VIN = 3.3V, VOUT = 5V, L = 1.5μH, TA = 25°C, unless otherwise noted. Output Voltage Ripple Output Voltage Ripple Load = 0A Load = 0.1A CH1: VOUT/AC 10mV/div. CH1: VOUT/AC 10mV/div. CH3: VSW 2V/div. CH3: VSW 2V/div. CH4: IL 200mA/div. CH4: IL 500mA/ div. 20μs/div. 1μs/div. Output Voltage Ripple Start-Up through VIN Load = 3.1A Load = 0A CH1: VOUT/AC 100mV/div. CH1: VOUT 2V/div. CH2: VIN 2V/div. CH3: VSW 2V/div. CH3: VSW 2V/div. CH4: IL 5A/div. CH4: IL 1A/div. 1μs/div. 2ms/div. Start-Up through VIN Shutdown through VIN Load = 0.1A Load = 0.1A CH1: VOUT 2V/div. CH2: VIN 2V/div. CH1: VOUT 2V/div. CH2: VIN 2V/div. CH3: VSW 5V/div. CH3: VSW 5V/div. CH4: IL 5A/div. CH4: IL 1A/div. 2ms/div. 10ms/div. EVL3424A-G-00A Rev. 1.0 MonolithicPower.com 7/1/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 6 EVL3424A-G-00A – SYNC BOOST CONVERTER W/ OUTPUT DISCONNCT EVAL BOARD EVB TEST RESULTS (continued) VIN = 3.3V, VOUT = 5V, L = 1.5μH, TA = 25°C, unless otherwise noted. Shutdown through VIN Start-Up through EN Load = 3.1A Load = 0A CH1: VOUT 2V/div. CH1: VOUT 2V/div. CH2: VEN 5V/div. CH2: VIN 2V/div. CH3: VSW 5V/div. CH3: VSW 5V/div. CH4: IL 5A/div. CH4: IL 1A/div. 10ms/div. 2ms/div. Start-Up through EN Shutdown through EN Load = 0.1A Load = 0.1A CH1: VOUT 2V/div. CH1: VOUT 2V/div. CH2: VEN 2V/div. CH2: VEN 5V/div. CH3: VSW 5V/div. CH3: VSW 5V/div. CH4: IL 5A/div. CH4: IL 1A/div. 2ms/div. 2ms/div. Shutdown through EN Load Transient Load = 3.1A ILOAD = 0A to 1.5A at 150mA/μs CH1: VOUT/AC 500mV/ div. CH1: VOUT 2V/div. CH2: VEN 5V/div. CH3: VSW 5V/div. CH4: ILOAD 1A/div. CH4: IL 5A/div. 200µs/div. 1ms/div. EVL3424A-G-00A Rev. 1.0 MonolithicPower.com 7/1/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 7 EVL3424A-G-00A – SYNC BOOST CONVERTER W/ OUTPUT DISCONNCT EVAL BOARD EVB TEST RESULTS (continued) VIN = 3.3V, VOUT = 5V, L = 1.5μH, TA = 25°C, unless otherwise noted. Load Transient SCP Entry ILOAD = 1.5A to 3.1A at 150mA/μs 0A load to short CH1: VOUT/AC 500mV/div. CH1: VOUT 2V/div. CH4: IL 2A/div. CH4: ILOAD 1A/div. 1ms/div. 40μs/div. SCP Entry SCP Recovery 3.1A load to short Recover to 0A load CH1: VOUT 2V/div. CH1: VOUT 2V/div. CH4: IL 5A/div. CH4: IL 1A/div. 40µs/div. 2ms/div. SCP Recovery Recover to 0.1A load CH1: VOUT 2V/div. CH4: IL 2A/div. 2ms/div. EVL3424A-G-00A Rev. 1.0 MonolithicPower.com 7/1/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 8 EVL3424A-G-00A – SYNC BOOST CONVERTER W/ OUTPUT DISCONNCT EVAL BOARD PCB LAYOUT Figure 2: Top Silk Figure 3: Top Layer Figure 4: Bottom Layer EVL3424A-G-00A Rev. 1.0 MonolithicPower.com 7/1/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 9 EVL3424A-G-00A – SYNC BOOST CONVERTER W/ OUTPUT DISCONNCT EVAL BOARD REVISION HISTORY Revision # 1.0 Revision Date 07/01/2021 Description Initial Release Pages Updated - 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. EVL3424-G-00A Rev. 1.0 MonolithicPower.com 7/1/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 10