Datasheet

C1
0.1uF
R1
100k
C4
2. 2uF
C3
0.1uF
Q1
Q2
4
5
1 - 3
4
5
1 - 3
FDMS8680
FDMS8670AS
L1
0.45uH
C8
C7
2x330uF
12x22uF
C5 C6
4x10uF
/25V
0.1uF
/50V
R4
0
R3
0
R2
47k
VSNS
GSNS
REFIN
V5
DL
DH
2
3
4
12
9
10
1
VREF SW
11U1
TPS51219
PGND
GND
TRIP
COMP
EN
MODE
PGOOD
PwPd
17 16
15
14
13
5
6
7
8
BST
VIN
Vout
EN
V5IN
8V to 20V
1.00V/10.4A
4.5V to 5.5V
Vout_GND
R5
3m
C2
0.01uF
C9
0.01uF
R6
100
R7
10
C10
1nF
R8
10
C11
1nF
TPS51219
www.ti.com SLUSAG1B –MARCH 2011– REVISED OCTOBER 2011
TPS51219 1.00-V/10.4-A, D-CAP™ 400-kHz, Resistor Sensing Application Circuit
Figure 36. 1.00-V/10.4-A, D-CAP™ 400-kHz, Resistor Sensing
Table 6. 1.00-V/10.4-A, D-CAP™ 400-kHz, Resistor Sensing, List of Materials
REFERENCE
QTY SPECIFICATION MANUFACTURE PART NUMBER
DESIGNATOR
C6 4 10 µF, 25 V Taiyo Yuden TMK325BJ106MM
C7 2 330 µF, 2 V, 9 mΩ Panasonic EEFSX0D331ER
C8 12 22 µF, 6.3 V Murata GRM21BB30J226ME38
L1 1 0.45 µH, 17 A, 1.1 mΩ Panasonic ETQP4LR45XFC
Q1 1 30 V, 35 A, 8.5 mΩ Fairchild FDMS8680
Q2 1 30 V, 42 A, 3.5 mΩ Fairchild FDMS8670AS
R5 1 3 mΩ, 1 W KOA TLR2HDTD3L00F
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