Datasheet

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Current Limit
Comparator
Undervoltage
Lockout
Bias Supply
VIN
SWP
SWN
T
on
VGH
BOOT
PGND
VMAIN
BOOT
V
REF
R
V
REF
R
FBH
R
FBL
BOOT
FBM
AGND
Power Up/Down
Sequencer
Oscillator
S Min Off Time
VMAIN
Control
Logic
EN
BOOT
BOOT
P−MOS1
P−MOS2
N−MOS1
N−MOS2
N−MOS3
D1
RUN
VMAIN
GATE
EN
100kR
Power Down Seq Off
Power Down Seq Off
R
DIS_VGH
R
DIS_VMAIN
EN
ENVGH
ENVGL
Bandgap
V
REF
= 1.213V
LDO
TPS65120, TPS65121, TPS65123, TPS65124
SLVS531A – JUNE 2004 – REVISED MARCH 2005
FUNCTIONAL BLOCK DIAGRAM - TPS65124
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