AAT1150 Advanced Analogic Technologies, AAT1150 Datasheet - Page 2

• Manufacturer Part Number: AAT1150
• Description: 1MHz 1A Step-Down DC/DC Converter
• Manufacturer: Advanced Analogic Technologies

Pin Descriptions
Pin Configuration
2
Pin #
6, 7
1
2
3
4
5
8
Symbol
SGND
PGND
VCC
EN
VP
FB
LX
Feedback input pin. This pin must be connected to the converter’s output. It is
used to set the output of the converter to regulate to the desired value.
Enable input pin. When connected high, the AAT1150 is in normal operation.
When connected low, it is powered down. This pin should not be left floating.
Inductor connection pins. These pins should be connected to the output
inductor. Internally, Pins 6 and 7 are connected to the drains of the P-chan-
nel switch and N-channel synchronous rectifier.
Function
Signal ground.
Power supply. It supplies power for the internal circuitry.
Input supply voltage for converter power stage.
Power ground return for the output stage.
SGND
VCC
EN
FB
1
2
3
4
(Top View)
MSOP-8
1MHz 1A Step-Down DC/DC Converter
8
7
6
5
PGND
LX
LX
VP
AAT1150
1150.2005.03.1.2