AAT1146 Datasheet, PDF (2/20 Pages) Advanced Analogic Technologies – Fast Transient 400mA Step-Down Converter

DATA SHEET
AAT1146
Fast Transient 400mA Step-Down Converter
Pin Descriptions
Pin #
SC70JW-8 SOT23-5
1
2
2
4
3
5
4
3
5
1
6, 7, 8
Symbol
EN
OUT
VIN
LX
AGND
PGND
Function
Enable pin.
Feedback input pin. This pin is connected either directly to the converter output or to an
external resistive divider for an adjustable output.
Input supply voltage for the converter.
Switching node. Connect the inductor to this pin. It is internally connected to the drain of
both high- and low-side MOSFETs.
Non-power signal ground pin.
Main power ground return pins. Connect to the output and input capacitor return.
Pin Configuration
SC70JW-8
(Top View)
SOT23-5
(Top View)
EN ¹
OUT ²
VIN ³
LX ⁴
8 _PGND
7 _PGND
6 _PGND
5 _AGND
GND ¹
EN ²
LX ³
5 VIN
4 _OUT
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2
201985B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 18, 2013