AAT3242ITP-IQ-T1 ANALOGICTECH [Advanced Analogic Technologies], AAT3242ITP-IQ-T1 Datasheet - Page 2

• Manufacturer Part Number: AAT3242ITP-IQ-T1
• Description: 300mA/150mA Dual CMOS LDO Linear Regulator
• Manufacturer: ANALOGICTECH [Advanced Analogic Technologies]

Pin Descriptions
Pin Configuration
2
2
PowerLinear
PowerLinear
TSOPJW-12
2, 3, 8, 9
n/a
10
11
12
1
4
5
6
7
Pin #
TDFN33-12
POKA
OUTB
4, 10, EP
ENA
GND
GND
INB
TM
TM
2, 8
12
11
9
7
6
5
3
1
1
2
3
5
6
4
TSOPJW-12
(Top View)
Symbol
POKA
OUTB
POKB
OUTA
GND
ENA
ENB
N/C
INB
INA
12
11
10
9
8
7
Function
Enable Regulator A pin; this pin should not be left fl oating. When pulled low, the PMOS
pass transistor turns off and the device enters shutdown mode, consuming less than
1μA.
Ground connection pins. For the TDFN33 package, The exposed thermal pad (EP)
should be connected to the board ground plane and Pins 4 and 10. The ground plane
should include a large exposed copper pad under the package with vias to the bottom
layer ground plane for thermal dissipation (see package outline).
Power OK pin with open drain output. It is pulled low when the OUTA pin is below the
10% regulation window.
Low current (150mA) regulator output pin; should be decoupled with a 2.2μF or greater
output low-ESR ceramic capacitor.
Input voltage pin for Regulator B; should be decoupled with 1μF or greater capacitor.
Enable Regulator B; this pin should not be left fl oating. When pulled low, the PMOS pass
transistor turns off and the device enters shutdown mode, consuming less than 1μA.
Power OK pin with open drain output. It is pulled low when the OUTB pin is below the
10% regulation window.
High-current (300mA) regulator output pin; should be decoupled with a 2.2μF or
greater output low-ESR ceramic capacitor.
Input voltage pin for Regulator A; should be decoupled with 1μF or greater capacitor.
Not connected.
INA
OUTA
POKB
GND
GND
ENB
w w w . a n a l o g i c t e c h . c o m
w w w . a n a l o g i c t e c h . c o m
300mA/150mA Dual CMOS LDO Linear Regulator
300mA/150mA Dual CMOS LDO Linear Regulator
OUTA
POKB
GND
ENB
N/C
INA
1
2
3
4
5
6
TDFN33-12
(Top View)
PRODUCT DATASHEET
PRODUCT DATASHEET
EP
AAT3242
AAT3242
12
11
10
9
8
7
OUTB
INB
ENA
POKA
GND
N/C
3242.2008.08.1.11
3242.2008.08.1.11