MIC2142_07 Datasheet, PDF (10/17 Pages) Micrel Semiconductor – Micropower Boost Converter

Micrel, Inc.
MIC2142
Figure 5. Parallel White LED Driver with Analog Dimming Control
V_IN
L1
10µH
CR1
BAT54HT1
+20V @0.5mA
C2
10µF
U1 MIC2142
4 ^{FB SW} 3
GND ₂
5 ^{EN VCC} 1
R2
1.8M
C1
1µF
25V
R1
120k
C1
1µF
25V
V_INRTN
GND
Figure 6. Handheld LCD Supply
October 2007
10
M9999-102507