ACE7210A

1A 2MHz 5.5V Synchronous Buck Converter

VER 1.1

1

Description

The ACE7210A is a high-efficiency, DC-to-DC step- down switching regulators, capable of delivering

up to 1A of output current. The device operates from an input voltage range of 2.6V to 5.5V and provides

an output voltage from 0.6V to VIN. Working at a fixed frequency of 2MHz allows the use of small external

components, such as ceramic input and output caps, as well as small inductors, while still providing low

output ripples. This low noise output along with its excellent efficiency achieved by the internal

synchronous rectifier, making ACE7210A an ideal replacement for large power consuming linear

regulators. Internal soft-start control circuitry reduces inrush current. Short-circuit and thermal shutdown

protection improves design reliability.

Features

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High efficiency: up to 97%

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Up to 1A Max output current

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2MHz switching frequency

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Low dropout 100% duty operation

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Internal compensation and soft-start

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Current mode control

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Reference 0.6V

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Thermal shutdown, UVLO

Application

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Cellular phones

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Digital Cameras

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MP3 and MP4 players

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Set top boxes

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Wireless and DSL Modems

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USB supplied Devices in Notebooks

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Portable Devices

Absolute Maximum Ratings

Parameter

Value

Max Input Voltage

6V

Max Operating Junction Temperature (Tj)

125°C

Ambient Temperature (Ta)

-40°C

– 85°C

Maximum Power Dissipation

400mW

Storage Temperature (Ts)

-40°C - 150°C

Lead Temperature & Time

26°C, 10S

ESD (HBM)

>2000V

Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect

device reliability.