AAT1123 Datasheet, PDF (2/18 Pages) Advanced Analogic Technologies – 1MHz Step-Down Converter

DATA SHEET
AAT1123
1MHz Step-Down Converter
Pin Descriptions
Pin #
1
2
3
4
5
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 resis-
tive 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 pin. Connect to the output and input capacitor return.
Pin Configuration
SC70JW-8
(Top View)
EN ¹
OUT ²
VIN ³
LX ⁴
8 _PGND
7 _PGND
6 _PGND
5 _AGND
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201975B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 15, 2013