LX1742 查看數據表（PDF） - Microsemi Corporation
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LX1742 Datasheet PDF : 13 Pages
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INTEGRATED PRODUCTS
LX1742
High Efficiency High Voltage Boost Controller
PRODUCTION DATA SHEET
APPLICATION CIRCUITS (CONTINUED)
Typical LCD Bias Applications (Cont)
VBAT = (1.6V to 6.0V)
L1
47µH
VADJ = 0.9V to 1.5V
IN
SHDN
SW
OUT
LLXX1774422
FB
ADJ
CS
+
GND
-
R1
RCS R2
4kΩ
C2*
1nF
VOUT
=
VADJ ⎜⎜⎝⎛1+
R1
R2
⎟⎟⎠⎞
C1
10µF
* Optional Component
used to reduce output
voltage ripple.
Figure 3 – Circuit Showing Dynamic Output Voltage Operation Via Analog Voltage Input and Using the Internal Diode
Switch (Optional).
Copyright © 2000
Rev. 1.0b, 2005-03-03
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
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