Datasheet

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FUNCTIONAL BLOCK DIAGRAM
+
_
+
Power-Save
Mode
Switching
Logic
REF
REF
_
EN
R
(DIS)
P
TPS6232x
Only
N-MOSCurrentLimit
Compator
P-MOSCurrentLimit
Compator
GateDriver
Anti
Shoot-Through
P
P
SW
VOUT
PGND
_
+
ComparatorLow
-1.5%V
OUT(NOMINAL)
Summing
Comparator
+
+
-
+
+
+
-
-
+
RAMP HEIGHT
0.1V
IN
+
-
Mid-,High-Frequency
Zero-PolePair
_
+
A
A
R2 R1
Seenote A
V
REF
C
2R
VOUT
R
2C
A =3
(DC)
-
Soft-Start
CompLow
3-MHz
Oscillator+PLL
Sawtooth
Generator
Thermal
Shutdown
BandGap
V
REF
=0.4V
Undervoltage
Lockout
BiasSupply
AGND
ADJ
FB
AVIN
MODE/SYNC EN VIN
NOTE A:
:
PARAMETER MEASUREMENT INFORMATION
AVIN
VIN
SW
U1
L1
ADJ
C1
V
O
1.6V/500mA
PGND
C2
V
I
AGND
VOUT
R1
R2
EN
MODE/SYNC
A A
FB
A
1
2
3
8
7
10
6
4
5
9
10 Fm
ListofComponents:
U1=TPS6230x
L1=FDKMIPW3226Series
C1,C2=X5R/X7R
2.7V..6V
TPS62300, TPS62301, TPS62302
TPS62303, TPS62304, TPS62305,
TPS62311, TPS62313, TPS62315, TPS62320, TPS62321
SLVS528E – JULY 2004 – REVISED NOVEMBER 2007
Copyright © 2004 – 2007, Texas Instruments Incorporated Submit Documentation Feedback 7
Product Folder Link(s): TPS62300, TPS62301, TPS62302 TPS62303, TPS62304, TPS62305, TPS62311, TPS62313,
TPS62315, TPS62320, TPS62321