AP63203 Series

3.8V-32V INPUT, 2A Low Iq Synchronous Buck with Enhanced EMI Reduction

Catalog

3.8V-32V INPUT, 2A Low Iq Synchronous Buck with Enhanced EMI Reduction

Part	Frequency - Switching	Function	Voltage - Input (Max) [Max]	Number of Outputs	Voltage - Output (Min/Fixed)	Package / Case	Synchronous Rectifier	Output Type	Supplier Device Package	Mounting Type	Topology	Voltage - Input (Min) [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output	Output Configuration	Supplied Contents	Voltage - Input [Max]	Voltage - Input [Min]	Regulator Topology	Voltage - Output	Outputs and Type	Outputs and Type	Main Purpose	Board Type	Utilized IC / Part
Diodes Inc AP63203WU-7	1.1 MHz	Step-Down	32 V	1	3.3 V	SOT-23-6 Thin TSOT-23-6		1.81 mOhm	TSOT-23-6	Surface Mount	Buck	3.8 V	85 °C	-40 °C	2 A	Positive
Diodes Inc AP63203WU-EVM	1.1 MHz														2 A		Board(s)	32 V	3.8 V	Buck	3.3 V	Non-Isolated	1	DC/DC Step Down	Fully Populated	AP63203

Catalog

3.8V-32V INPUT, 2A Low Iq Synchronous Buck with Enhanced EMI Reduction

Key Features

• VIN8V to 32V

• 2A Continuous Output Current

• 8V ±1% Reference Voltage

• 22µA Ultralow Quiescent Current

• Switching Frequency500kHz: AP63200 and AP632011MHz: AP63203 and AP63205

• 500kHz: AP63200 and AP63201

• 1MHz: AP63203 and AP63205

• Pulse Width Modulation (PWM) Regardless of Output LoadAP63201

• AP63201

• Supports Pulse Frequency Modulation (PFM)AP63200, AP63203, and AP63205Up to 80% Efficiency at 1mA Light LoadUp to 88% Efficiency at 5mA Light Load

• AP63200, AP63203, and AP63205

• Up to 80% Efficiency at 1mA Light Load

• Up to 88% Efficiency at 5mA Light Load

• Fixed Output Voltage3V: AP632030V: AP63205

• 3V: AP63203

• 0V: AP63205

• Proprietary Gate Driver Design for Best EMI Reduction

• Frequency Spread Spectrum (FSS) to Reduce EMI

• Precision Enable Threshold to Adjust UVLO

• Protection CircuitryOvervoltage ProtectionCycle-by-Cycle Peak Current LimitThermal Shutdown

• Overvoltage Protection

• 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 (AP63200Q/AP63201Q/AP63203Q/AP63205Q)

Description

The AP63200/AP63201/AP63203/AP63205 is a 2A, synchronous buck converter with a wide input voltage range of 3.8V to 32V and fully integrates a 125mΩ high-side power MOSFET and a 68mΩ low-side power MOSFET to provide high-efficiency step-down DC/DC conversion.