參數(shù)資料
型號: TPS5211PWPR
英文描述: Analog IC
中文描述: 模擬IC
文件頁數(shù): 19/29頁
文件大?。?/td> 500K
代理商: TPS5211PWPR
TPS5210
PROGRAMMABLE SYNCHRONOUS BUCK REGULATOR CONTROLLER
SLVS171A – SEPTEMBER 1998 – REVISED MAY 1999
19
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
The following figure is a typical application schematic. The circuit can be divided into the power-stage section
and the control-circuit section. The power stage must be tailored to the input/output requirements of the
application. The control circuit is basically the same for all applications with some minor tweaking of specific
values. Table 2 shows the values of the power stage components for various output-current options.
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
1 uF
C3
R4
2.55 k
1%
ENABLE
C8
2200 pF
1%
R1
3.40 k
1 uF
C1
R101
GND
Control Section
Power Stage
12V
Q101
L101
C103
C102
+
C101
Q102
+
C105
C106
Vo
L102
R102
C104
RTN
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
1
H
H
L
B
D
L
L
V
R
Figure 18. Standard Application Schematic
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