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LX1882-00CDU Datasheet(PDF) 1 Page - Microsemi Corporation

Part # LX1882-00CDU
Description  Charge Pump Doubler with Linear Regulator
Download  13 Pages
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Manufacturer  MICROSEMI [Microsemi Corporation]
Direct Link  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

LX1882-00CDU Datasheet(HTML) 1 Page - Microsemi Corporation

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Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright
© 2000
Rev. 1.0e, 2005-03-03
LX1882
Charge Pump Doubler with Linear Regulator
PRODUCTION DATA SHEET
I N T E GRA T ED
PR ODUC T S
DESCRI PTI O N
The LX1882 is a two-stage boost
regulator featuring a charge pump
doubler with an integrated low dropout
linear regulator.
The first stage features an internal
doubler charge pump converting an input
supply of 1.8V to 4.4V, while the second
stage is an LDO regulating the boosted
voltage converting it to a regulated
output.
The LX1882 is capable of supplying up
to 50mA of output current with an
operating current of less than 150µA.
Quiescent current is reduced to < 5µA in
shutdown mode.
The LX1882’s internal regulator is stable
with either Tantalum or Ceramic low-value
capacitors, typically 2.2µF on the output,
allowing designers flexibility in external
component selection.
Reliability and safety features include
Thermal
Shutdown
Protection
and
Integrated Short-Circuit Protection.
IMPORTANT:
For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
KEY FEATUR ES
Wide Input Voltage: 1.8V to 4.4V
3.3V and Adjustable (2.5V to
5.5V) Output Voltage Options
Inductor-less design using small
ceramic capacitors
Low Shutdown Current of 1
µA
Internal Thermal Shutdown and
Current Limiting
550kHz Switching Operation
APPLICATIONS/BENEFITS
Cellular Telephone VCO Supplies
Medical Instrumentation
Data Acquisition
Wireless PCMCIA Applications
EMI Sensitive Boost Applications
PRODUCT H I GHLIGHT
7
8
4
1
LED
N+1
2
3
6
V
IN
1.8V to 4.4V
V
OUT
OFF ON
V
OUT
SHDN
FB
GND
C+
V
IN
C-
CPO
LX1882-00
5
C1
C2
C3
C4
LX1882: Adjustable Output; LED Driver
7
8
2
1
3
6
V
IN
2V to 4.4V
V
OUT = 3.3V
OFF ON
V
OUT
SHDN
FILT
GND
C+
V
IN
C-
CPO
LX1882-33
4
5
C2
C3
C1
C
FILT
LX1882: Fixed 3.3V Output
C4
PACKAGE ORDER INFO
DM
Plastic SOIC
8-PIN
DU
Plastic MSOP
8-PIN
TJ (
°C)
INPUT
OUTPUT
RoHS Compliant / Pb-free
Transition DC: 0440
RoHS Compliant / Pb-free
Transition DC: 0432
1.8V – 4.4V
Adj
LX1882-00CDM
LX1882-00CDU
0 to 70
2V – 4.4V
3.3V
LX1882-33CDM
LX1882-33CDU
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX1882-00CDU-TR)


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