Datasheet

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SLVS401 − AUGUST 2001
6
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TPS2149 functional block diagram
3.3 V / 200 mA
LDO
CS
Driver
Charge
Pump
Current
Limit
Thermal
Sense
CS
Driver
Thermal
Sense
Current
Limit
LDO_OUT
OUT1
OC
OUT2
VIN
EN1
EN2
GND
Terminal Functions
TERMINAL
NAME
NO.
I/O DESCRIPTION
NAME
TPS2149 TPS2159
I/O
DESCRIPTION
EN1 8
I Logic level enable to transfer power to OUT1
EN1 8
I
Logic level enable to transfer power to OUT1
EN2 7
I Logic level enable to transfer power to OUT2
EN2 7
I
Logic level enable to transfer power to OUT2
GND 5 5 Ground
LDO_OUT 3 3 O LDO output
OC 6 6 O Overcurrent status flag for OUT1 and OUT2. Open drain output.
OUT1 1 1
O
Switch 1 output
OUT2 4 4
O
Switch 2 output
VIN 2 2 I Input for LDO switch 1 and switch 2; device supply voltage