Datasheet AP63356Q, AP63357Q (Diodes)

AP63356Q/AP63357Q Green AUTOMOTIVE-COMPLIANT, 32V, 3.5A LOW IQ SYNCHRONOUS BUCK CONVERTER Description Pin Assignments
The AP63356Q/AP63357Q is an automotive-compliant, 3.5A,
(Top View)
synchronous buck converter with a wide input voltage range of 3.8V to 32V. The device fully integrates a 74mΩ high-side power MOSFET
SW
and a 40mΩ low-side power MOSFET to provide high-efficiency step- down DC-DC conversion. The AP63356Q/AP63357Q device is easily used by minimizing the
VIN 1 9 8 GND
external component count due to its adoption of peak current mode control along with its integrated loop compensation network. The AP63356Q/AP63357Q design is optimized for Electromagnetic Interference (EMI) reduction. The device has a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET
EN 2 7 NC
turn-on and turn-off times, which reduces high-frequency radiated EMI noise caused by MOSFET switching. AP63356Q/AP63357Q also
FB 3 6 BST
features Frequency Spread Spectrum (FSS) with a switching frequency jitter of ±6%, which reduces EMI by not allowing emitted
COMP 4 5 PG
energy to stay in any one frequency for a significant period of time.
V-DFN3020-13/SWP V-DFN3020-13/SWP
The device is available in a 3mm × 2mm, V-DFN3020-13/SWP (Type
(Type A1) (Type A1)
A1), package with wettable flanks.
Features Applications
AEC-Q100 Qualified with the Following Results 12V Automotive Power Systems  Device Temperature Grade 1: -40°C to +125°C TA Range Automotive Infotainment  Device HBM ESD Classification Level H2 Automotive Instrument Clusters  Device CDM ESD Classification Level C5 Automotive Body Electronics and Lighting VIN: 3.8V to 32V Automotive Telematics 3.5A Continuous Output Current Advanced Driver Assistance Systems 0.8V ± 1% Reference Voltage 22µA Low Quiescent Current (Pulse Frequency Modulation) 450kHz Switching Frequency Pulse Width Modulation (PWM) Regardless of Output Load  AP63356Q Supports Pulse Frequency Modulation (PFM)  AP63357Q  Up to 86% Efficiency at 5mA Light Load Proprietary Gate Driver Design for Best EMI Reduction Frequency Spread Spectrum (FSS) to Reduce EMI Low-Dropout (LDO) Mode Power Good Indicator with 5MΩ Internal Pul -up Precision Enable Threshold to Adjust UVLO Protection Circuitry  Undervoltage Lockout (UVLO)  Output Undervoltage Protection (UVP)  Cycle-by-Cycle Peak Current Limit  Thermal Shutdown
Lead-Free Finish; Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) The AP63356Q and AP63357Q are suitable for automotive applications requiring specific change control; these parts are AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. https://www.diodes.com/quality/product-definitions/
Notes: 1. EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. All applicable RoHS exemptions applied. 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 <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. AP63356Q/AP63357Q 1 of 28 September 2020 Document number: DS41948 Rev. 1 - 2
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