A7115
AiT Semiconductor Inc.
DC-DC CONVERTER
www.ait-ic.com
1.5MHZ, 1.5A SYNCHRONOUS STEP-DOWN CONVERTER
PIN DESCRIPTION
Top View
Pin #
1
Symbol
RUN
Function
Regulator Enable control input. Drive RUN above 1.5V to turn on the part. Drive
RUN below 0.6V to turn it off. In shutdown, all functions are disabled drawing
<1μA supply current. Do not leave RUN floating.
2
3
GND
SW
Ground.
Power Switch Output. It is the Switch note connection to Inductor. This pin
connects to the drains of the internal P-CH and N-CH MOSFET switches.
Supply Input Pin. Must be closely decoupled to GND, Pin 2, with a 22μF or
greater ceramic capacitor.
4
VIN
FB
Feedback Input Pin. Connect FB to the center point of the external resistor
divider. The feedback threshold voltage is 0.6V.
5
REV1.0
- APR 2013 RELEASED, NOV 2014 UPDATED -
- 2 -
AITSEMI [ AiT Semiconductor ]
