AP64352 Series

3.8V TO 40V INPUT, 3.5A LOW IQ SYNCHRONOUS BUCK

Catalog

3.8V TO 40V INPUT, 3.5A LOW IQ SYNCHRONOUS BUCK

Part	Mounting Type	Grade	Package / Case	Package / Case	Package / Case	Synchronous Rectifier	Output Configuration	Frequency - Switching [Min]	Frequency - Switching [Max]	Output Type	Voltage - Output (Max) [Max]	Voltage - Output (Min/Fixed)	Qualification	Operating Temperature [Min]	Operating Temperature [Max]	Current - Output	Topology	Function	Number of Outputs	Supplier Device Package	Voltage - Input (Min) [Min]
Diodes Inc AP64352QSP-13	Surface Mount	Automotive	0.154 in	8-SOIC	3.9 mm		Positive	100 kHz	2.2 MHz	Adjustable	40 V	0.8 V	AEC-Q100	-40 °C	125 °C	3.5 A	Buck	Step-Down	1	8-SO-EP	3.8 V

Catalog

3.8V TO 40V INPUT, 3.5A LOW IQ SYNCHRONOUS BUCK

Key Features

• VIN 3.8V to 40V

• 5A Continuous Output Current

• 8V ± 1% Reference Voltage

• 22µA Low Quiescent Current (Pulse-Frequency Modulation)

• Programmable Switching Frequency: 100kHz to 2.2MHz

• External Clock Synchronization: 100kHz to 2.2MHz

• 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 CircuitryUndervoltage Lockout (UVLO)Output Overvoltage Protection (OVP)Cycle-by-Cycle Peak Current LimitThermal Shutdown

• 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)

• An automotive-compliant part is available under separate datasheet (AP64352Q)

Description

The AP64352 is a 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 low-side power MOSFET to provide high-efficiency step-down DC-DC conversion.