Datasheet

Undervoltage
Lockout
Bias Supply
_
+
+
–
REF
Current Limit Comparator
+
–
REF
I
(AVG)
Comparator
P-Channel
Power MOSFET
N-Channel
Power MOSFET
Driver
Shoot-Through
Logic
+
–
Load Comparator
Control
Logic
+
–
1.21 V
Soft Start
850 kHz
Oscillator
+
–
S
R
Comparator High
Comparator Low
Comparator High2
+
–
Compensation
R2
See Note
R1
V
REF
= 0.5 V
Comparator Low
Comparator Low2
Comparator High
Saw Tooth
Generator
V
I
V
(COMP)
Comparator
SW
PG
LBO
GNDPGNDLBIFB
V
I
EN
SKIP Comparator
Error Amp
SYNC
TPS62052, TPS62054
TPS62056, TPS62050, TPS62051
SLVS432E –SEPTEMBER 2002–REVISED JUNE 2011 www.ti.com
FUNCTIONAL BLOCK DIAGRAM
NOTE: For the adjustable versions (TPS62050, TPS62051), the internal feedback driver is disabled and the FB pin is
directly connected to the GM amplifier.
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Product Folder Links: TPS62052 TPS62054 TPS62056 TPS62050 TPS62051