Datasheet
V3P3 IN
V3P3 Sense
V3P3OUT Sense
V3P3OUT
OUT
OUT Sense
VHV IN VHV Sense
1
Parts without values are not installed.
S0
ENHVU
F_DETECT
GND
GND
GND
EN
VHV IN: 4.5 - 19.8V
V3P3 IN: 3 - 3.6V
I_OUT RANGE: 0-3A
C1
0.1uF
TP1
TP2
R2
402k
TP5
TP6TP7
R4
26.7K
TP8
TP9
TP10
TP11
C4
0.1uF
TP3 TP4
TP12
TP13
1
2
J1
1
2
J2
1
2
J3
1
2
J4
R8
402k
1
2
J5
1
2
J6
R1
80.6k
TP15
TP16
C7
C5
10uF
R3
80.6k
R9
0
R10
0
R11
80.6k
R13
0
R14
0
C6
100uF
C3
1
2
3
J7
HEADER_1X3
1
2
3
J8
HEADER_1X3
1
2
3
J9
HEADER_1X3
R7
10K
R12
10K
R15
10K
R16
10K
R17
10K
R18
10K
1
2
3
J10
HEADER_1X3
R19
10K
R20
10K
R21
100K
C2
0.1uF
R5
0
R6
0
TP14
1
GND
2
GND
3
GND
4
F_DETECT
5
EN
6
VHV
7
VHV
8
ISET_V3P3
9
ISET_S3
10
ISET_S0
11
HV_EN
12
OUT
13
GND
14
OUT
15
GND
16
ENVHU
17
S0
18
V3P3OUT
19
V3P3
20
V3P3
21
EP
U1
TPS22981
[1]
V3P3
[1]
V3P3
[1]
V3P3
[1]
V3P3
[1]
V3P3
Schematic
www.ti.com
4 Schematic
Figure 4. TPS22981EVM Schematic
6
TPS22981EVM SLVU817–November 2012
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