Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

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AP63301

3.8V-32V INPUT, 3A Low Iq Synchronous Buck with Enhanced EMI Reduction

Evaluation Boards and User Guides

AP63301WU-EVM-User-Guide.pdf (855 KB)

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Description

The AP63300/AP63301 is a 3A, synchronous buck converter with a wide input voltage range of 3.8V to 32V. The device fully integrates a 75mΩ high-side power MOSFET and a 40mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion.

The AP63300/AP63301 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 AP63300/AP63301 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. AP63300 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.

The device is available in a TSOT26 package.

Feature(s)

VIN 3.8V to 32V
3A Continuous Output Current
0.8V ± 1% Reference Voltage
22μA Low Quiescent Current (Pulse Frequency Modulation)
500kHz Switching Frequency
Supports Pulse Frequency Modulation (PFM)

- AP63300

- Up to 88% Efficiency at 5mA Light Load

Pulse Width Modulation (PWM) Regardless of Output Load

- AP63301

Proprietary Gate Driver Design for Best EMI Reduction
Frequency Spread Spectrum (FSS) to Reduce EMI

- AP63300

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)

Application(s)

5V, 12V, and 24V Distributed Power Bus Supplies
Flat Screen TV Sets and Monitors
Power Tools and Laser Printers
White Goods and Small Home Appliances
FPGA, DSP, and ASIC Supplies
Home Audio
Network Systems
Gaming Consoles
Consumer Electronics
General Purpose Point of Load

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP)	Standard
Type	Buck
Minimum Input Voltage (V)	3.8
Maximum Input Voltage (V)	32
Output Current (A)	3
Minimum Output Voltage (V)	0.8
Maximum Output Voltage (V)	VIN
Quiescent Current Typ (µA)	280
Shutdown Current Typ (µA)	1
Frequency Typ (kHz)	500
HS RDS(ON) (mΩ)	75
LS RDS(ON) (mΩ)	40
Features	Enable,Forced PWM,Soft-start Fixed,Internal Loop Compensation,UVLO Adjustable,OVP,Overcurrent Protection,Thermal Shutdown,Synchronous Rectification

Technical Documents

Evaluation Boards and User Guides

AP63301WU-EVM-User-Guide.pdf (855 KB)

Calculators

AP63x0x-Q-Power-Calculation.xlsx (773 KB)

Recommended Soldering Techniques

TN1.pdf

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2605	2023-03-09	2023-06-09	Qualified Additional Cu Pillar Bump Site and Bill of Materials (BOM) Lead Frame Material