LX8816 Microsemi Corporation, LX8816 Datasheet

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LX8816

Manufacturer Part Number
LX8816
Description
Dual Channel 1a Low Dropout Regulator
Manufacturer
Microsemi Corporation
Datasheet

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Copyright © 2000
Rev. 1.2c, 2005-05-18
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
positive-voltage linear regulator. This
dual regulator has one fixed output
coupled with an adjustable output.
Each channel features low-dropout
and high accuracy.
with a flexible power management
solution, minimal printed circuit board
area and shorter design cycles.
amp independently with a regulator
design optimized for system efficiency
by consuming minimal ground current
and directing quiescent current to the
load.
trimming of the internal voltage
The LX8816 is a dual channel
The LX8816 provides designers
Each channel can supply up to one
The
TM
LX8816
V
IN
22µF
= 5V
features
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
*
V
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX8816-04CDF-TR)
1
D E S C R I P T I O N
=
0 to 125
T
on-chip
V
J
(°C)
REF
⎜ ⎜
enabling
typically ±1% of it’s specified value,
while the BiPolar output transistor has a
low dropout voltage even at full output
current (V
Protection are integrated on-chip and
operate independently for each regulator
output.
low-value output capacitor, typically
2.2µF on the outputs, allowing designers
flexibility
selection.
maximum power dissipation and ease of
assembly
technology.
1
Thermal and Short Circuit Current
The LX8816 regulator is stable with a
Microsemi’s S-PAK package enables
+
A P P L I C A T I O N C I R C U I T S
LX8816-04
V
GND
R
IN
R
1
2
O
PACKAGE ORDER INFO
UTPUT
(PIN 4)
DO
ADJ
Integrated Products
Adj.
precise
+
®
Microsemi
< 1.2V typ. @ 1A).
in
using
I
ADJ
V
V
V
external
1
2
1
R
output
1
Dual Channel 1A Low Dropout Regulator
surface
499
499
R1
R2
O
10 µF
UTPUT
(PIN 5)
3.3V
component
voltages,
mount
V
10µF
P
2
RODUCTION
DF
Transition DC: 0515
LX8816-04CDF
RoHS Compliant
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
5V to 3.3V / ADJ Regulators
Hard Disk Drives, CD-ROMs
ADSL and Cable Modems
Battery Charging Circuits
Instrumentation
PC Peripherals
APPLICATIONS/BENEFITS
2.5V* @ 1.0A
Plastic S-PAK
5-PIN
D
3.3V @ 1.0A
ATA
K E Y F E A T U R E S
S
HEET
LX8816
Page 1

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LX8816 Summary of contents

Page 1

... REF T (° 125 Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX8816-04CDF-TR) Copyright © 2000 Rev. 1.2c, 2005-05-18 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Dual Channel 1A Low Dropout Regulator ® P enabling precise ...

Page 2

... ESCRIPTION * R1 where R1 is the resistor connected between V The input and output bypass capacitors should be connected to this Microsemi Integrated Products LX8816 RODUCTION ATA HEET ...

Page 3

... OUT (RMS) T JSD Microsemi Integrated Products LX8816 D S RODUCTION ATA HEET LX8816-04 Units Min Typ Max 4.5 10 5.5 0 1000 mA 2.2 20 1.0 10* ≤ ≤ T 125°C except where 4.7µF (Tant.), & LX8816-04 Min Typ Max 1.225 1.25 1.273 1.5 2.5 0.17 0.22 0.04 0.15 1.2 1.3 1.0 1 0.12 1 3.234 3.30 3.3825 6 8 0.17 0.22 2.6 6 1.2 1.3 1.0 1.4 0 2.6 3.8 3.5 ...

Page 4

... Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Dual Channel 1A Low Dropout Regulator ® P RODUCTION Figure 1 – Simplified Block Diagram Microsemi Integrated Products LX8816 D S ATA HEET 5 V OUT2 (Fixed 10µ OUT1 ...

Page 5

... DIV =3.3V, I =1A 2 OUT2 5 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 0.5 1 10000 100000 Microsemi Integrated Products LX8816 D S ATA HEET LOAD TRANSIENT RESPONSE = 5V 2µs / DIV CURRENT LIMIT RESPONSE V1 = 1.5V 1. 3.3V Rising Load On V2 100µs / DIV V AND I VS. V RAMP OUT CHIP IN Ichip, ma V2,(Rext=13K ohms) V1, adj(Rext=909 ohms) 1 ...

Page 6

... TM Description The LX8816 is part of a family of Dual LDO (Low Drop-Out) linear regulators in Microsemi’s S-PAK power package, which offer maximum power dissipation in a low profile surface mount technology. The family includes combination fixed and adjustable versions. Each channel can supply up to one amp independently with a regulator design optimized for system efficiency by consuming minimal ground current and directing quiescent current to the load ...

Page 7

... Figure 3 - Heatsink 9.75mm 7.92mm 8.89mm 1.83mm 4.39mm 5.36mm Microsemi Integrated Products LX8816 D S ATA HEET Component Component Trace VIAS Ground Plane Inner Power Plane Backside Trace 11.56mm 9.98mm 8.84mm 3.28mm 0mm ...

Page 8

... MAX MIN A 9.27 9.52 0.365 B 7.87 8.13 0.310 C 1.78 2.03 0.070 D 8.03 BSC 0.316 BSC E 0.25 BSC 0.010 BSC F 0.63 0.79 0.025 G 1.70 BSC 0.067 BSC H 0.79 1.04 0.031 I 6.50 BSC 0.256 BSC J 0.03 0.13 0.001 K 10.41 10.67 0.410 L 0.25 BSC 0.01 BSC M 0.76 1.27 0.03 Microsemi Integrated Products LX8816 D S RODUCTION ATA HEET MAX 0.375 0.320 0.080 0.031 0.041 0.005 0.420 0.05 Page 8 ...

Page 9

... Copyright © 2000 Rev. 1.2c, 2005-05-18 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Dual Channel 1A Low Dropout Regulator ® P RODUCTION Microsemi Integrated Products LX8816 D S ATA HEET Page 9 ...

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