Datasheet

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Anti-
Ringing
Gate
Control
PGND
Regulator
Error
Amplifier
PGND
Control Logic
Oscillator
Temperature
Control
VOUT
PGND
FB
LDOIN
LDOOUT
SWN
VBAT
EN
PGOOD
ENLDO
SYNC
GND
LBI
LBO
SWP
_
+
_
+
Backgate
Control
V
max
Control
VOUT
100 kΩ
20 pF
_
+
V
ref
= 0.5 V
GND
Backgate
Control
Error
Amplifier
LDOFB
_
+
_
+
V
ref
= 0.5 V
GND
Low Battery
Comparator
_
+
V
ref
= 0.5 V
GND
TPS61120
TPS61122, TPS61121
SLVS427C – JUNE 2002 – REVISED APRIL 2004
FUNCTIONAL BLOCK DIAGRAM
5