Datasheet

www.ti.com
1
2
3
4
30
29
28
27
PGND
LDRV2
SW2
HDRV2
LDRV1
VIN5
SW1
HDRV1
TPS40130DBT
5
6
7
8
BOOT1
OVSET
VOUT
GSNS
9
10
11
DIFFO
CS1
CSRT1
12
13
14
15
COMP
VREF
DROOP
FB
26
25
24
23
BOOT2
SS
UVLO
BP5
22
21
20
19
AGND
CS2
CSRT2
RT
18
17
16
PGOOD
ILIM
EN/SYNC
R17
R18
5 V
C7 2200 pF
L2
D2
BAT54A
5 V
L1
12 V
12 V
R11C8
C17
Q2
Q5, Q6
PGND
C20C19C21 C12C13
Q1
Q3, Q4
C10
FB
EN/SYNC
5 V
LOAD
R35
0.1 %
R44
0.1%
R43
0.1%
BP5
R1
C4
R34
0.1%
D1 BAT54A
C15
R33
0.1 %
R2
C5
R42
0.1 %
R32
0.1 %
R40
0.1 %
C2
0.1 µF
R19
1.62 kΩ
V
OUT
C9
0.1 µF
R12 10 Ω
R10
10 kΩ
R14
10 kΩ
R22
10 kΩ
R16 10 kΩ
R8 10 kΩ
R5 90.9 kΩ
C6
0.1 µF
1.0 Ω
V
OUT
R13
10 kΩ
1.0 Ω
C1
0.1 µF
V
REF
UDG−04092
V
OUT
TPS40130
SLUS602B – JUNE 2004 – REVISED SEPTEMBER 2005
APPLICATION INFORMATION (continued)
Figure 18 shows how to configure for a 5-V output. The resistor dividers on the CSx and CSRTx inputs are
necessary to reduce the common mode voltage into the current sense amplifiers. The differential amplifier is not
used because with a 5-V output, remote sensing is not generally necessary. If the differential Amplifier is
necessary, a voltage divider of 2/3 should be used and the magnitude of the resistors should be about 500 Ω
and 1 k Ω .
Figure 18. Application Circuit for Providing 5-V Output
26
Submit Documentation Feedback