AAT1232IRN-T1 Advanced Analog Technology, Inc., AAT1232IRN-T1 Datasheet - Page 2

• Manufacturer Part Number: AAT1232IRN-T1
• Description: 24V 100mA Step-Up Converter
• Manufacturer: Advanced Analog Technology, Inc.

Pin Descriptions
Pin Configuration
2
TSOPJW-12
6, 7
N/A
10
12
11
EN/SET
1
2
3
4
5
8
9
SEL
N/C
VIN
SW
VP
Pin #
TDFN34-16
1
2
3
5
6
4
15, 16
6, 7, 8
TSOPJW-12
9, 10
(Top View)
1, 2
EP
14
13
12
11
5
4
3
Symbol
12
11
10
EN/SET
9
8
7
PGND
GND
SEL
N/C
FB2
FB1
VIN
SW
LIN
VP
LIN
FB1
FB2
GND
PGND
SW
Function
Input power pin; connected to the source of the P-channel MOSFET.
Connect a 2.2µF or larger capacitor from these pins to PGND.
IC active high enable pin. Alternative input pin for S
lizing FB2 reference.
Logic high selects FB1 high output reference; logic low selects FB2 low
output reference. Pull low for S
Input voltage for the converter. Connect this pin directly to the VP pin.
No connection. Do not make any connection to this pin.
Boost converter switching node. Connect the power inductor between
the SW pin and the LIN pin.
Power ground for the boost converter; connected to the source of the
internal N-channel MOSFET. Connect input and output capacitor
returns to PGND.
Ground pin.
Feedback pin for low output voltage set point. Pin set to 0.6V when
SEL is low and disabled when SEL is high. Voltage is set from 0.6V to
1.2V using S
Feedback pin for high output voltage set point. Pin set to 1.2V when
SEL is high and disabled when SEL is low. Disabled with S
control.
Switched power input. Connected to the power inductor.
Exposed paddle (bottom). Internally connected to SW. May be exter-
nally connected to SW pins or left floating. Do not connect to GND
or PGND.
2
Cwire control.
24V 100mA Step-Up Converter
PGND
PGND
PGND
GND
FB1
FB2
LIN
LIN
2
Cwire control. See Tables 1 and 2.
1
2
3
4
5
6
7
8
TDFN34-16
(Top View)
16
15
14
13
12
10
11
9
2
VP
VP
EN/SET
SEL
VIN
N/C
SW
SW
Cwire control uti-
AAT1232
1232.2006.12.1.3
2
Cwire