AP64502SP-13

AP64502 3.8V TO 40V INPUT, 5A LOW IQ SYNCHRONOUS BUCK WITH INTERNAL COMPENSATION Description Pin Assignments The AP64502 is a 5A, synchronous buck converter with a wide input voltage range of 3.8V to 40V. The device fully integrates a 45mΩ highside power MOSFET and a 20mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion. (Top View) The AP64502 device is easily used by minimizing the external component count due to its adoption of peak current mode control along with its integrated loop compensation network. BST 1 VIN 2 8 SW 7 GND EXPOSED PAD 9 The AP64502 design is optimized for Electromagnetic Interference (EMI) reduction. The device has a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turn-off times, which reduces high-frequency radiated EMI noise caused by MOSFET switching. The AP64502 also features Frequency Spread Spectrum (FSS) with a switching frequency jitter of ±6%, which reduces EMI by not allowing emitted energy to stay in any one frequency for a significant period of time. EN 3 6 SS RT/CLK 4 5 FB SO-8EP The device is available in an SO-8EP package. Features Applications                         VIN: 3.8V to 40V Output Voltage (VOUT): 0.8V to VIN 5A Continuous Output Current 0.8V ± 1% Reference Voltage 25µA Low Quiescent Current (Pulse Frequency Modulation) Adjustable Switching Frequency: 100kHz to 2.2MHz External Clock Synchronization: 100kHz to 2.2MHz Adjustable Soft-Start Time Up to 85% Efficiency at 5mA Light Load Proprietary Gate Driver Design for Best EMI Reduction Frequency Spread Spectrum (FSS) to Reduce EMI Low-Dropout (LDO) Mode Precision Enable Threshold to Adjust UVLO Protection Circuitry  Undervoltage Lockout (UVLO)  Output Overvoltage Protection (OVP)  Cycle-by-Cycle Peak Current Limit  Thermal Shutdown Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/ Notes: Distributed Power Bus Supplies Power Tools and Laser Printers White Goods and Small Home Appliances Home Audio Network Systems Consumer Electronics General Purpose Point of Load 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain