參數(shù)資料
型號: LX1732CDU-TR
廠商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類: 穩(wěn)壓器
英文描述: 1 A SWITCHING REGULATOR, 135 kHz SWITCHING FREQ-MAX, PDSO8
封裝: LEAD FREE, PLASTIC, MSOP-8
文件頁數(shù): 7/12頁
文件大小: 322K
代理商: LX1732CDU-TR
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 4
Copyright
2000
Rev. 1.1c, 2005-03-03
WWW
.Microse
m
i
.CO
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LX1732
High Current PFM Boost Converter
PRODUCTION DATA SHEET
I N T E GRA T ED
PR ODUC T S
APPLI CATI ON CI RCUITS
VCO
Shutdown
Gate Driver
Current
Sense
+
-
+
-
SW
SHDN
VC
LBI
GND
FB
LBO
IN
Band Gap
V
REF = 1.200V
Ref = V
BG/2
Logic
Control
Figure 2 – LX1732 Block Diagram
V
IN
V
OUT
LX1732
GND
VC
FB
SW
SHDN
IN
LBI
LBO
27
H
UPS5817
20
F
10V
316K
100K
316K
100K
20
F
10V
Figure 3 – VOUT = 5.0V; IOUT = 150mA and VLBI = 2.5V
V
IN
V
OUT
LX1732
GND
VC
FB
SW
SHDN
IN
LBI
LBO
27
H
UPS5817
20
F
10V
174K
100K
100K
100K
20
F
10V
Figure 4 – VOUT = 3.2V; IOUT = 250mA and VLBI = 1.2V
V
IN
LX1732
GND
VC
FB
SW
SHDN
IN
LBI
LBO
27
H
UPS5817
20
F
15
20
F
15
15
15
15
237K
100K
Figure 5 – LX1732 driving 5 white LEDs in parallel
where VOUT > 3.6V; IOUT = 100mA.
AA
PP
LL
IICC
AA
TT
IIOO
NN
SS
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