Datasheet

75kΩ
9
10
11
12
PGOOD1
EN1
PGOOD2
EN2
TPS51124RGE
(QFN24)
13 14 15 16
VBST1
DRVL1
LL1
DRVH1
VBST2
DRVH2
LL2
DRVL2
17
8
7
6 5 4 3 2 1
18
19
20
21
22
23
24
VO1
1.05V/10 A
Q2
IRF8113
L1
Q1
IRF7821
VO2
1.5V/10 A
Q4
IRF8113
L2
Q3
IRF7821
InputVoltage
3Vto28V
PowerPAD
TM
C7
R6
C3
C1
C6
C4
R3
6.8
C8
R7
R1
R2
75
R5
R4
V5IN
4.5Vto5.5V
VO2
VO1
VFB2
TONSEL
GND
VFB1
PGND2
TRIP2
V5FILT
V5IN
TRIP1
PGND1
Power
Good2
EN2
C5
C2
Power
Good1
EN1
SGND
PGNDPGND
SGND
C9
SGND PGND
PGND
73.2kΩ
kΩ
28.7kΩ
22µF
2x330µF
1µH
10µF
0.1µF
4.7 μF
6.8kΩ
1 μF
3.3Ω
kΩ
0.1µF
10µF
1µH
2x330µF
TPS51124
SLVS616B –NOVEMBER 2005–REVISED SEPTEMBER 2010 www.ti.com
Figure 25. Typical Application Circuit
Table 2. Typical Application Circuit Components
SYMBOL SPECIFICATION MANUFACTURER PART NUMBER
C1 330 mF, 2.5 V, 15 mΩ SANYO 2R5TPE330MF
C4 330 mF, 2.5 V, 18 mΩ SANYO 2R5TPE330MI
L1, L2 1 mH, 2 mΩ TOKO FDA1254-1R0M
C3, C6 10 mF, 25 V TDK C3225X5R1E106
Q1, Q3 30 V, 13 mΩ International Rectifier IRF7821
Q2, Q4 30 V, 7 mΩ International Rectifier IRF8113
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