TPS51315 Datasheet, PDF (23/28 Pages) Texas Instruments – 10-A STEP-DOWN SYNCHRONOUS SWITCHER WITH INTEGRATED MOSFETs

TPS51315
www.ti.com........................................................................................................................................................................................................ SLUS881 – MAY 2009
R1
301 kW
R2
12.1 kW
32 31 30 29 28 27 26 25 24 23 22 21
D1
R6
120 kW
C6
0.56 mF
Q1
MMBT3904
V5IN
R8
100 W
R7
27 kW
C5
0.1 mF
V_OUT
ENSW
R4
20 kW
R3
8.06 kW
33 N/C
34 EN_PSV
35 TON
36 VOUT
R5
500 W
C3
1 mF
C4 PGOOD
1 mF
37 ^VOUT_DS
38 ^V5FILT
39 VFB
40 ^PGOOD
TPS51315
LL 20
LL 19
LL 18
LL 17
LL 16
VIN 15
VIN 14
VIN 13
R6
100 kW
1 2 3 4 5 6 7 8 9 10 11 12
C2
47 mF
L1
1 mF
Figure 28. Typical 1.05-V/10-A Application with Hiccup Operation Mode
V_OUT
1.8 V
C1
330 mF
V_IN
12 V
UDG-09046
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