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TPS62050DGS Fiches technique(PDF) 6 Page - Texas Instruments

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No de pièce TPS62050DGS
Description  800-mA SYNCHRONOUS STEP-DOWN CONVERTER
PDF  21 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS62050DGS Fiches technique(HTML) 6 Page - Texas Instruments

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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
VREF = 0.5 V
Comparator Low
Comparator Low2
Comparator High
Saw Tooth
Generator
V
I
V(COMP)
Comparator
SW
PG
LBO
GND
PGND
LBI
FB
VI
EN
SKIP Comparator
Error Amp
SYNC
TPS62050, TPS62051
TPS62052, TPS62054, TPS62056
SLVS432D – SEPTEMBER 2002 – REVISED OCTOBER 2003
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.
6



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