EVL2460-J-00A

EVL2460-J-00A 45V, 0.6A, 1.7MHz, Synchronous, Step-Down Converter Evaluation Board DESCRIPTION FEATURES The EVL2460-J-00A evaluation board is designed to demonstrate the capabilities of MPS’s MP2460, a high-frequency, step-down switching regulator with integrated high-side and low-side power MOSFETs. The MP2460 can provide up to 0.6A of output current with current mode control for fast loop response.          The wide 4.5V to 45V input range accommodates a variety of step-down applications, and the 1μA shutdown mode quiescent current allows the device to be used in battery-powered applications. The MP2460 uses high duty cycle and low-dropout mode for low input voltage conditions. The MP2460 has built-in protection features, such as cycle-by-cycle current limiting, hiccup mode, short-circuit protection, and thermal shutdown. It is available in a cost-effective TSOT23-6 package.         Meets 0.1% Output Voltage Ripple Low-Dropout Mode Wide 4.5V to 45V Operating Input Range 50V Absolute Maximum Rating 2% to 98% Large Range Duty Cycle Light-Load Mode >90% Efficiency Dedicated Internal Compensation Stable with Ceramic/Electrolytic Output Capacitors 420mΩ/220mΩ Internal Power MOSFETs 1.7MHz Fixed Switching Frequency Internal Soft Start (SS) Precision Current Limit without CurrentSensing Resistor Short-Circuit Protection with Hiccup Mode Output Adjustable from 0.8V to 98% of VIN Over-Temperature Protection Available in a TSOT23-6 Package Optimized Performance with MPS Inductor ELECTRICAL SPECIFICATIONS (1) Parameter Input voltage Output voltage Output current Symbol Value Units VIN VOUT IOUT 12.5 to 45 12 0.6 V V A Notes: 1) For different input/output voltage specifications with different output capacitors/inductors, the application circuit parameters may require changes. APPLICATIONS     High-Voltage Power Conversions Industrial Power Systems Battery-Powered Systems Power Meters 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 registered trademarks of Monolithic Power Systems, Inc. or its subsidiaries. EVL2460-J-00A EVALUATION BOARD Efficiency vs. Load Current VOUT = 12V 100 EFFICIENCY (%) 90 LxW (50.8mmx50.8mm) MPS IC MPS Inductor Board Number Number EVL2460-J-00A MP2460GJ MPL-SE6040-220 80 70 60 50 40 VIN=15V VIN=24V Vin=45V 30 20 0.001 0.01 0.1 LOAD CURRENT (A) EVL2460-J-00A Rev. 1.0 www.MonolithicPower.com 2/22/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 1 1 EVL2460-J-00A – 45V, 0.6A, SYNC STEP-DOWN CONVERTER EVAL BOARD QUICK START GUIDE 1. Preset the power supply (VIN) between 12.5V and 45V. 2. Turn the power supply off. 3. Connect the power supply terminals to: a. Positive (+): VIN b. Negative (-): GND 4. Connect the load to: a. Positive (+): VOUT b. Negative (-): GND 5. Turn the power supply on after making the connections. The board should automatically start up. 6. To use the enable function, apply a digital input to the EN pin. Drive EN above 2V to turn the regulator on; drive EN below 1V to turn it off. EVL2460-J-00A Rev. 1.0 www.MonolithicPower.com 2/22/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 2 EVL2460-J-00A – 45V, 0.6A, SYNC STEP-DOWN CONVERTER EVAL BOARD EVALUATION BOARD SCHEMATIC Figure 1: Evaluation Board Schematic EVL2460-J-00A Rev. 1.0 www.MonolithicPower.com 2/22/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 3 EVL2460-J-00A – 45V, 0.6A, SYNC STEP-DOWN CONVERTER EVAL BOARD EVL2460-J-00A BILL OF MATERIALS Qty Ref Value Description Inductor, DCR = 97mΩ, ISAT = 2.35A Ceramic capacitor, 100V, X7S Ceramic capacitor, 100V, X7R Ceramic capacitor, 25V, X7R Package Manufacturer Manufacturer P/N 1 L1 22μH SMD MPS MPL-SE6040-220 2 C1,C2 4.7μF 1210 Murata GRM32DC72A475KE01L 4 C3, C4, C7, C8 0.1μF 0603 Murata GRM188R72A104KA35D 1 C6 22μF 1210 Murata GRM32ER71E226KE15L 1 C10 470μF Electrolytic capacitor, 25V DIP Jianghai CD284 1 1 2 1 0 0 0 R1 R2 R6,R7 R5 D2 R3, R4 C5, C9 10.7kΩ 150kΩ 0Ω 1MΩ NS NS NS Thick film resistor, 1% Thick film resistor, 1% Thick film resistor, 5% Thick film resistor, 5% 0603 0603 0603 0603 Yageo Yageo Yageo Yageo RC0603FR-0710K7L RC0603FR-07150KL RC0603FR-070RL RC0603JR-071ML 1 U1 MP2460 TSOT23-6 MPS MP2460GJ Synchronous step-down converter EVL2460-J-00A Rev. 1.0 www.MonolithicPower.com 2/22/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 4 EVL2460-J-00A – 45V, 0.6A, SYNC STEP-DOWN CONVERTER EVAL BOARD EVB TEST RESULTS Performance curves and waveforms are tested on the evaluation board. VIN = 24V, VOUT = 12V, C6 = 22µF, C10 = 470µF, L1 = 22µH, TA = 25°C, unless otherwise noted. Output Voltage Ripple Output Voltage Ripple IOUT = 0.125A IOUT = 0.4A CH1: VOUT/AC CH1: VOUT/AC CH4: IL CH4: IL Steady State Steady State IOUT = 0A IOUT = 0.6A CH1: VOUT/AC CH1: VOUT/AC CH3: VSW CH3: VSW CH4: IL CH4: IL CH1: VOUT Start-Up through VIN Start-Up through VIN IOUT = 0A IOUT = 0.6A CH1: VOUT CH2: VIN CH2: VIN CH3: VSW CH3: VSW CH4: IL CH4: IL EVL2460-J-00A Rev. 1.0 www.MonolithicPower.com 2/22/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 5 EVL2460-J-00A – 45V, 0.6A, SYNC STEP-DOWN CONVERTER EVAL BOARD EVB TEST RESULTS (continued) Performance curves and waveforms are tested on the evaluation board. VIN = 24V, VOUT = 12V, C6 = 22µF, C10 = 470µF, L1 = 22µH, TA = 25°C, unless otherwise noted. Shutdown through VIN Shutdown through VIN IOUT = 0A IOUT = 0.6A CH1: VOUT CH1: VOUT CH2: VIN CH2: VIN CH3: VSW CH3: VSW CH4: IL CH4: IL Start-Up through EN Start-Up through EN IOUT = 0A IOUT = 0.6A CH1: VOUT CH1: VOUT CH2: VEN CH2: VEN CH3: VSW CH3: VSW CH4: IL CH4: IL Shutdown through EN Shutdown through EN IOUT = 0A IOUT = 0.6A CH1: VOUT CH1: VOUT CH2: VEN CH2: VEN CH3: VSW CH3: VSW CH4: IL CH4: IL EVL2460-J-00A Rev. 1.0 www.MonolithicPower.com 2/22/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 6 EVL2460-J-00A – 45V, 0.6A, SYNC STEP-DOWN CONVERTER EVAL BOARD EVB TEST RESULTS (continued) Performance curves and waveforms are tested on the evaluation board. VIN = 24V, VOUT = 12V, C6 = 22µF, C10 = 470µF, L1 = 22µH, TA = 25°C, unless otherwise noted. Short-Circuit Protection Entry Short-Circuit Protection Entry IOUT = 0A IOUT = 0.6A CH1: VOUT CH1: VOUT CH3: VSW CH3: VSW CH4: IL CH4: IL Short-Circuit Protection Recovery Short-Circuit Protection Recovery IOUT = 0A IOUT = 0.6A CH1: VOUT CH1: VOUT CH3: VSW CH3: VSW CH4: IL CH4: IL Load Transient IOUT = 0.3A to 0.6A, 100mA/μs CH1: VOUT / AC CH4: IOUT EVL2460-J-00A Rev. 1.0 www.MonolithicPower.com 2/22/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 7 EVL2460-J-00A – 45V, 0.6A, SYNC STEP-DOWN CONVERTER EVAL BOARD PCB LAYOUT Figure 2: Top Silkscreen Layer Figure 3: Top Layer Figure 4: Bottom Layer EVL2460-J-00A Rev. 1.0 www.MonolithicPower.com 2/22/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 8 EVL2460-J-00A – 45V, 0.6A, SYNC STEP-DOWN CONVERTER EVAL BOARD REVISION HISTORY Revision # 1.0 Revision Date 2/22/2021 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. EVL2460-J-00A Rev. 1.0 www.MonolithicPower.com 2/22/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. 9