AAT2512 Datasheet, PDF (2/20 Pages) Advanced Analogic Technologies – Dual 400mA High Frequency Buck Converter

AAT2512
Dual 400mA High Frequency Buck Converter
Pin Descriptions
Pin #
1
2
Symbol
EN1
FB1
3, 6, 7, 10
4
5
GND
EN2
FB2
8
LX2
9
VIN2
11
LX1
12
VIN1
Function
Enable pin for Channel 1. When connected low, it disables the channel and consumes
less than 1µA of current. When connected high, normal operation.
Feedback input pin for Channel 1. This pin is connected to the converter output. It is used
to see the output of the converter to regulate to the desired value via an external resistor
divider.
Ground.
Enable pin for Channel 2. When connected low, it disables the channel and consumes
less than 1µA of current. When connected high, normal operation.
Feedback input pin for Channel 2. This pin is connected to the converter output. It is used
to see the output of the converter to regulate to the desired value via an external resistor
divider.
Power switching node for Channel 2. Output switching node that connects to the output
inductor.
Input supply voltage for Channel 2. Must be closely decoupled.
Power switching node for Channel 2. Output switching node that connects to the output
inductor.
Input supply voltage for Channel 1. Must be closely decoupled.
Pin Configuration
TDFN33-12
(Top View)
EN1 ¹
FB1 ²
GND ³
EN2 ⁴
FB2 ⁵
GND ⁶
12 _VIN1
11 _LX1
10 _GND
9 _VIN2
8 _LX2
7 _GND
2
2512.2006.06.1.4