General Description

The AOZ6682CI is a high efficiency, easy to use, 2A

synchronous buck regulators at fixed switching frequency

for small form factor solution. AOZ6682CI works from

4.5V to 18V input voltage range, and provides up to 2A of

continuous output current with an output voltage adjustable

down to 0.8V.

The AOZ6682CI features fixed frequency operation at heavy

load and Pulse Energy Mode (PEM) at light load, providing

best efficiency across whole load range. The control loop of

AOZ6682CI is internally compensated, allowing for simple

system design and minimal component count by eliminating

the need of external compensation network.

AOZ6682CI also features built-in enable control, internal

soft-start and many protection functions, including cycleby-

cycle current limit, short-circuit protection, output overvoltage

protection, input under-voltage lockout and overtemperature

protection.

AOZ6682CI comes in an ultra-thin TSOT23-6L package and

is rated from -40°C to +125°C junction temperature range.

Features

• 4.5V to 18V operating input voltage range

• 2A continuous output current

• Synchronous Buck with Low on-resistance:

- 125mΩ High-Side

- 55mΩ Low-Side

• Up to 95 efficiency

• Pulse energy mode for high light load efficiency

• (VIN=12V, VOUT=5V, 89 efficiency at 10mA)

• Output voltage adjustable down to 0.8V

• 750kHz PWM operation

• Internal compensation

• Internal soft start

• Capable to handle pre-bias start-up

• Cycle-by-cycle current limit

• Output over-voltage protection

• Short-circuit protection

• Thermal shutdown

• Ultra-thin TSOT23-6L package

Applications

• General Point-of-load

• High performance LCD TV

• High performance cable modems