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TPS5210
PROGRAMMABLE SYNCHRONOUS BUCK REGULATOR CONTROLLER
SLVS171A SEPTEMBER 1998 REVISED MAY 1999
25
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
R4
11.0 k
R1
10.0 k
ENABLE
1%
12-V
Boost
Circuit
10
LODRV
11
LOHIB
12
DRVGND
13
LOWDR
14
DRV
16
BOOT
17
HIGHDR
18
BOOTLO
19
HISENSE
15
VCC
23
VID4
24
VID3
25
VID2
26
VID1
27
VID0
22
INHIBIT
28
PWRGD
1
IOUT
9
BIAS
3
OCP
4
VHYST
6
VSENSE
5
VREFB
7
ANAGND
8
SLOWST
2
DROOP
20
LOSENSE
21
IOUTLO
TPS5210
U1
C6
0.033 uF
0.1 uF
C1
1 uF
C3
1%
C8
2200 pF
12 V
GND
5V
Control Section
Power Stage
R101
Q101
L101
C103
C102
+
C101
Q102
Vo
RTN
+
C105
C106
L102
R102
C104
R10
1.00 k
R9
4.32 k
1.00 k
R8
R7
3.92 k
20.0 k
R6
100
R5
10.0 k
R3
C7
1000 pF
C5
0.1 uF
C4
1 uF
R2
150
1 uF
C2
5V
HIGHDR
V
HISENSE
LOSENSE
BOOTLO
DR
VGND
LOHIB
LODR
V
VSENSE
RTN
Figure 22. Typical 5-V-Only Application Circuit
application examples
Various application and layout examples using the TPS5210 are available from Texas Instruments. This
information can be downloaded from http://www.ti.com/sc/docs/products/msp/pwrsply/default.htm or received
from your TI representative.