AP64060Q

Document number: DS44124 Rev. 3 - 2

1 of 19

www.diodes.com

September 2022

© 2022 Copyright Diodes Incorporated. All Rights Reserved.

AP64060Q

4.5V TO 40V INPUT, 600mA SYNCHRONOUS BUCK WITH ENHANCED EMI REDUCTION

Description

The DIODESTM AP64060Q is a 600mA, synchronous buck converter

with a wide input voltage range of 4.5V to 40V. The device fully

integrates a 600

mΩ high-side power MOSFET and a 300mΩ low-

side power MOSFET to provide high-efficiency step-down DC-DC

conversion.

The AP64060Q 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.

The AP64060Q 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 device is available in a TSOT26 package.

Features



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 4.5V to 40V



600mA Continuous Output Current



Less than 0.1% Output Ripple at 12V



90µA Low Quiescent Current (Pulse Frequency Modulation)



2.2MHz Switching Frequency



Supports Pulse Frequency Modulation (PFM)



Proprietary Gate Driver Design for Best EMI Reduction



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 AP64060Q 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/

Pin Assignments

1

2

3

4

5

6

FB

EN

VIN

GND

SW

BST

TSOT26

TOP VIEW

Applications



5V, 12V, and 24V distributed power bus supplies



eMeter



Automotive



White goods and small home appliances



FPGA, DSP and ASIC supplies



General purpose point of load

Notes:

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 <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.