AAT1154 Advanced Analogic Technologies, AAT1154 Datasheet - Page 2

• Manufacturer Part Number: AAT1154
• Description: 1MHz 3A Buck DC/DC Converter
• Manufacturer: Advanced Analogic Technologies

Pin Descriptions
Pin Configuration
2
Pin #
5, 8
6, 7
1
2
3
4
Symbol
GND
VCC
EN
FB
VP
LX
GND
Function
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.
Ground connection.
Enable input pin. When connected high, AAT1154 is in normal
operation. When connected low, it is powered down. This pin
should not be left floating.
Power supply. It supplies power for the internal circuitry.
Input Supply Voltage for converter power stage.
Inductor connection pins. These pins should be connected to the
output inductor. Internally, pins 6 & 7 are connected to the drain of
the P-channel switch.
V
FB
EN
CC
1
2
3
4
SO-8
1MHz 3A Buck DC/DC Converter
8
7
6
5
V
LX
LX
V
P
P
AAT1154
1154.2003.08.0.91