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Microsemi Corporation - Dual Channel 2.5A Low Dropout Regulator

Numéro de référence LX8817
Description Dual Channel 2.5A Low Dropout Regulator
Fabricant Microsemi Corporation 
Logo Microsemi Corporation 





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LX8817 fiche technique

A MICROSEMI COMPANY
LX8817
Dual Channel 2.5A Low Dropout Regulator
PRELIMINARY

The LX8817 is a dual channel and directing quiescent current to the load.
positive-voltage linear regulator. This The LX8817 features on-chip
dual regulator has one fixed output trimming of the internal voltage
coupled with an adjustable output. reference, enabling precise output
Each channel features low-dropout voltages, typically ±1% of it’s specified
and high accuracy.
value.
The LX8817 utilizes dual inputs that Power sequencing logic ensures proper
can be used as separate sources for the startup regardless of the level of VCTRL
control and power sections. This or VPWR. The LX8817 outputs remain
configuration reduces power off while VPWR < 2.7V.
dissipation by operating the regulator Thermal and Short Circuit Current
near dropout (VPWR-VOUT = VDO = Protection are integrated on-chip and
0.6V @ 2.5A) while providing operate independently for each regulator
sufficient operating headroom for the output.
control logic.
The LX8817 regulator is stable with a
The LX8817 provides designers low-value output capacitor, typically
with an efficient flexible power 10µF tantalum or ceramic on the
management solution, minimal printed outputs, allowing designers flexibility in
circuit board area, and shorter design external component selection.
cycles.
Linfinity’s S-PAK power package
Each channel can supply up to 2.5A offers maximum power dissipation and
independently with a regulator design ease of assembly using surface mount
optimized for system efficiency by technology.
consuming minimal ground current
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
  
VPW R
3
2
 
 Two Independent Regulated
Outputs
 Accurate Output Voltages
 Max. Dropout of 0.6V at Rated
Current
 Independent Thermal and
Current Limit Protection
 Low Profile 7 Lead SMT Power
Package
 Low Tolerance Line (0.2%) and
Load (0.4%) Regulation
 Wide DC Supply Voltage of 3.0V
to 10.0V
 Loop Stability Independent of
Output Capacitor Type
  
 3.3V to 2.5V/ADJ Linear
Regulator
 Low Voltage Logic Supplies
 Active SCSI Terminators
 Battery Charging Circuits
 Instrumentation
 PC Peripherals
V1
V CTRL
LX8817
5
1
4
6
V2
Copyright © 2000
Rev. 0.2a, 2000-09-15
TA (°C)
0 to 125
   
OUTPUT V1
2.5V
OUTPUT V2
Adj
DF Plastic S-PAK
7-PIN
LX8817-2500CDF
Note: Available in Tape & Reel.
Append the letter “T” to the part number. (i.e. LX8817-xxxxC__T)
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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