Datasheet

WHITE LED APPLICATIONS
IN
EN
SW
D
FB
MODE
AGND
COMP
SS
1
4
6
8
3
7
2
5
PGND
9
10
SW
TPS61086
V
3.3V±20%
IN
Cin
10µF/
16V
Cby
1µF/16V
L
3.3µH
Css
100nF
Rcomp
68kΩ
Ccomp
1.2nF
Rsense
15 Ω
Cout
2*10µF/
25V
V
300mA
S
3S3P wLED
LWE67C
Dz
BZX84C
18V
Rlimit
110 Ω
optional
PMEG2010AEH
IN
EN
SW
D
FB
MODE
AGND
COMP
SS
1
4
6
8
3
7
2
5
PGND
9
10
SW
TPS61086
Cby
1µF/16V
L
3.3µH
Css
100nF
Rsense
15 Ω
3S3P wLED
LWE67C
Rlimit
110 Ω
PWM
100Hzto500Hz
optional
V
3.3V±20%
IN
Cin
10µF/
16V
Rcomp
68kΩ
Ccomp
1.2nF
Cout
2*10µF/
25V
V
300mA
S
PMEG2010AEH
Dz
BZX84C
18V
TPS61086
SLVSA05 – AUGUST 2009 ................................................................................................................................................................................................ www.ti.com
Figure 23. Simple Application (3.3 V input voltage - FORCED PWM MODE) for wLED Supply (3S3P) (with
optional clamping Zener diode)
Figure 24. Simple Application (3.3 V input voltage - FORCED PWM MODE) for wLED Supply (3S3P) with
Adjustable Brightness Control using a PWM Signal on the Enable Pin (with optional clamping Zener
diode)
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Product Folder Link(s): TPS61086