AAT1110 Datasheet, PDF (1/17 Pages) Advanced Analog Technology, Inc. – ONE-CHANNEL STEP-DOWN PWM CONTROLLER

Advanced Analog Technology, Inc.
Details are subject to change without notice
AAT1110
ONE-CHANNEL STEP-DOWN PWM CONTROLLER
Features
z Under-Voltage Lockout (UVLO) Protection
z Totem Pole Output
z Output Short Circuit Protection
z Incorporates Soft-Start Function
z Wide Operating Frequency
10 kHz to 1MHz
z Shutdown Control
z Low Dissipation Current :
Typical 1.6mA in Operation
z SOP-8 & TSSOP-8 Package Available
Pin Configuration
General Description
The AAT1110 is a one-channel step-down PWM
controller incorporating a soft-start function and a
short circuit protection (SCP) function.
Each device consists of an on-chip voltage reference,
error amplifier, pulse width modulation controller,
under-voltage protection, soft-start, and short circuit
protection circuits. Switching frequencies up to
1MHz are set by an external resistor and capacitor.
Soft-start time can be implemented by the SCP
capacitor.
Additionally, a chip enabled feature is provided to
power down and reduce the supply current to 10 µA .
With an optimized number of external components,
the AAT1110 offers a simple and cost effective
solution.
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