LX8816 Datasheet, PDF (1/9 Pages) Microsemi Corporation – Dual Channel 1A Low Dropout Regulator

INTEGRATED PRODUCTS
LX8816
Dual Channel 1A Low Dropout Regulator
PRODUCTION DATA SHEET
DESCRIPTION
The LX8816 is a dual channel enabling precise output voltages,
positive-voltage linear regulator. This typically ±1% of it’s specified value,
dual regulator has one fixed output while the BiPolar output transistor has a
coupled with an adjustable output. low dropout voltage even at full output
Each channel features low-dropout current (V_DO < 1.2V typ. @ 1A).
and high accuracy.
Thermal and Short Circuit Current
The LX8816 provides designers Protection are integrated on-chip and
with a flexible power management operate independently for each regulator
solution, minimal printed circuit board output.
area and shorter design cycles.
The LX8816 regulator is stable with a
Each channel can supply up to one low-value output capacitor, typically
amp independently with a regulator _{2.2µF on the outputs, allowing designers}
design optimized for system efficiency _{flexibility in external component}
by consuming minimal ground current _selection.
and directing quiescent current to the _{Microsemi’s S-PAK package enables}
load.
maximum power dissipation and ease of
The LX8816 features on-chip _{assembly using surface mount}
trimming of the internal voltage
technology.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
APPLICATION CIRCUITS
V_IN = 5V
22µF
V_IN
V₂
LX8816-04
10 µF
GND
V₁
ADJ
R1
499
10µF
R2
499
*V₁
= V_REF
^{1 +}
R1
R2


+
I _ADJ
R1
KEY FEATURES
Two Independent Regulated
Outputs
Accurate Output Voltages
Typical Dropout of 1.2V at 1A
and 1.1V at 500mA
Independent Thermal and
Current Limit Protection
Low Profile 5 Lead SMT Power
Package
Low Tolerance Load Regulation
Wide DC Supply Voltage of 4.3V
to 10V
Loop Stability Independent of
Output Capacitor Type
APPLICATIONS/BENEFITS
5V to 3.3V / ADJ Regulators
Hard Disk Drives, CD-ROMs
ADSL and Cable Modems
Battery Charging Circuits
Instrumentation
PC Peripherals
3.3V @ 1.0A
2.5V* @ 1.0A
Copyright  2000
Rev. 1.2a, 2002-11-01
T_J (°C)
0 to 125
PACKAGE ORDER INFO
OUTPUT V₁
(PIN 4)
OUTPUT V₂
(PIN 5)
Adj.
3.3V
Plastic S-PAK
DF _5-PIN
LX8816-04CDF
Note: Available in Tape & Reel.
Append the letter “T” to the part number. (i.e. LX8816-04CDFT)
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
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