參數(shù)資料
型號: TPS5211PWP
廠商: Texas Instruments, Inc.
英文描述: HIGH FREQUENCY PROGRAMMABLE HYSTERETIC REGULATOR CONTROLLER
中文描述: 可編程滯高頻穩(wěn)壓控制器
文件頁數(shù): 18/32頁
文件大?。?/td> 469K
代理商: TPS5211PWP
TPS5211
HIGH FREQUENCY PROGRAMMABLE HYSTERETIC
REGULATOR CONTROLLER
SLVS243 – SEPTEMBER 1999
18
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.
1 uF
C1
1%
C8
2200 pF
ENABLE
1%
R4
2.55 k
1 uF
C3
C6
0.033 uF
(see Note A)
10
9
8
LODRV
BIAS
SLOWST
11
LOHIB
12
DRVGND
13
LOWDR
14
DRV
16
17
18
19
20
21
BOOT
HIGHDR
BOOTLO
HISENSE
LOSENSE
IOUTLO
15
VCC
23
24
25
26
27
28
VID4
VID3
VID2
VID1
VID0
PWRGD
22
INHIBIT
1
IOUT
3
2
OCP
4
VHYST
6
5
VSENSE
VREFB
7
ANAGND
DROOP
U1
TPS5211
3.40 k
R1
GND
Control Section
Power Stage
12V
L101
Q102
L
B
1
R102
C101
H
H
Q101
R101
D
Vo
L102
RTN
R
C102
+
C103
C104
R103
V
L
L
V
R9
4.32 k
R10
1.00 k
R11
10.0 k
1 uF
C2
R2
150
C4
1 uF
C5
0.1 uF
C7
1000pF
10.0 k
R3
100
R7
3.92 k
R5
20.0 k
R6
1.00 k
R8
NOTE A: VID0 – VID4 User – selected to set output voltage.
Figure 18. Standard Application Schematic
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