SLVS514J – APRIL 2004 – REVISED DECEMBER 2008
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Functional Block Diagram (TPS2043B and TPS2053B)
OC1
GND
EN1
Thermal
Sense
Deglitch
(See Note B)
Driver
Current
Limit
(See Note A)
CS
UVLO
OUT1
(See Note A)
IN1
CS
OUT2
Driver
EN2
Current
Limit
OC2
(See Note B)
VCC
Selector
IN2
Charge
Pump
Thermal
Sense
Deglitch
(See Note A)
CS
OUT3
EN3
Driver
UVLO
Thermal
Sense
Current
Limit
OC3
Deglitch
(See Note B)
GND
Note A: Current sense
Note B: Active low (ENx) for TPS2043B; Active high (ENx) for TPS2053B
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