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TPS51117 Datasheet(PDF) 19 Page - Texas Instruments

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Part # TPS51117
Description  SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER
PDF  22 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS51117 Datasheet(HTML) 19 Page - Texas Instruments

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1
2
3
14
13
12
VBST
DRVH
LL
EN_PSV
TON
VOUT
TPS51117PW
4
5
6
7
11
10
9
8
TRIP
V5DRV
DRVL
PGND
V5FILT
VFB
PGOOD
GND
+
VO
1.05V/10A
Q2
L1
1.0uH
Q1
-
PGND
C2
20 m F
C1A
C1B
R6
100kW
PGOOD
+5V
EN_PSV
R4
R1
8.5k W
R2
22k W
R3
249k W
R5
300 W
+VBAT
C3
1u F
GND
+
+
C4
0.1 F
m
GND
TPS51117
SLVS631 – DECEMBER 2005
APPLICATION INFORMATION (continued)
Figure 23. 1.05-V/10-A Application From VBAT
Table 1. Typical Application Circuit Components
SYMBOL
SPECIFICATION
MANUFACTURER
PART NUMBER
C1A, C1B
470
µF, 2.5 V, 12 mΩ
SANYO
2R5TPE470MC
C2
10
µF, 25 V, 2 pcs
Murata
GRM31CR61E106KA12B
L1
1.0
µH
Vishay, Toko
IHLP-5050, FDA1254-1R0M
Q1
30V, 13 m
Ω
International Rectifier
IRF7821
Q2
30 V, 5.8 m
Ω
International Rectifier
IRF8113
R4
8.06 k
Ω
—
Std
19



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