AP64351QSP-13

AP64351Q AUTOMOTIVE-COMPLIANT, 40V, 3.5A SYNCHRONOUS BUCK WITH PROGRAMMABLE SOFT-START TIME Description Pin Assignments The AP64351Q is an automotive-compliant, 3.5A, synchronous buck converter with a wide input voltage range of 3.8V to 40V. The device fully integrates a 75mΩ high-side power MOSFET and a 45mΩ lowside power MOSFET to provide high-efficiency step-down DC-DC conversion. (Top View) (Top View) The AP64351Q device is easily used by minimizing the external component count due to its adoption of peak current mode control. BST 1 VIN 2 8 SW 7 GND EXPOSED PAD 9 The AP64351Q 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. AP64351Q 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 COMP SS 4 5 FB SO-8EP SO-8EP The device is available in an SO-8EP package. Features Applications                      AEC-Q100 Qualified with the Following Results  Device Temperature Grade 1: -40°C to +125°C TA Range  Device HBM ESD Classification Level H2  Device CDM ESD Classification Level C5 VIN: 3.8V to 40V 3.5A Continuous Output Current 0.8V ± 1% Reference Voltage 22µA Low Quiescent Current (Pulse Frequency Modulation) 570kHz Switching Frequency Programmable 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) The AP64351Q is suitable for automotive applications requiring specific change control; this part is AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. https://www.diodes.com/quality/product-definitions/ Notes: 12V Automotive Power Systems Automotive Infotainment Automotive Instrument Clusters Automotive Telematics Advanced Driver Assistance Systems 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