Datasheet

L1
10 µH
Q1
D2
D1
C2
4.7 µF
IFB1
IFB2
IFB3
IFB4
IFB5
IFB6
V
O
SW
Fault
V
BAT
Cin
EN
DCTRL
ISET
PGND
GND
R1
62 KW
TPS61181A
C4
0.1 µF
4.5 V to 24 V
C1
4.7 µF
10 WLED in series, 120 mA total
R2
51 W
C3
1 µF
R3
100 kW
EN
PWM Dimming
L1
10 µH
D1
C2
4.7 µF
IFB1
IFB2
IFB3
IFB4
IFB5
IFB6
V
O
SW
V
BAT
Cin
EN
DCTRL
ISET
PGND
GND
R1
62 KW
TPS61181A
C4
0.1 µF
2.7 V to 15 V
C1
4.7 µF
6 WLED in series, 120 mA total
EN
PWM Dimming
C3
1 µF
Fault
5 V
TPS61181A
www.ti.com SLVSAN6A –FEBRUARY 2011– REVISED MARCH 2011
Figure 20. TPS61181A Driving External PFET for True Shutdown Application
Figure 21. TPS61181A with Separate V
BAT
Power for Low Voltage Input Application
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Product Folder Link(s): TPS61181A