General Description
The AAT1109A is a one-channel switching regulator control IC incorporating a soft start function and a short circuit protection 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.

Features
● Under-voltage lockout protection
● Totem pole output
● Output short circuit protection
● Incorporates soft start function
● Wide operating frequency： 10kHz to 1MHz
● Shut down control
● Low dissipation current : Typical 1.6mA in operation
● Sop-8 & Tssop-8 package available