LX8385-05 Microsemi Corporation, LX8385-05 Datasheet - Page 2

• Manufacturer Part Number: LX8385-05
• Description: 3 A LOW DROPOUT POSITIVE REGULATORS
• Manufacturer: Microsemi Corporation

LX8385-xx/8385A-xx/8385B-xx
2
* This pin GND for fixed voltage versions.
Power Dissipation .................................................................................. Internally Limited
Input Voltage ................................................................................................................ 10V
Input to Output Voltage Differential ........................................................................... 10V
Operating Junction Temperature
Storage Temperature Range ...................................................................... -65°C to 150°C
Lead Temperature (Soldering, 10 seconds) ............................................................. 300°C
Note 1. Exceeding these ratings could cause damage to the device. All voltages are with
P PACKAGE:
DD PACKAGE:
Junction Temperature Calculation: T
The
All of the above assume no ambient airflow.
*
THERMAL RESISTANCE-JUNCTION TO TAB,
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
THERMAL RESISTANCE-JUNCTION TO TAB,
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
plane or internal power plane.
mounting technique.
Plastic (P, DD & DL Packages) ............................................................................. 150°C
ADJ or
JA
GND*
can be improved with package soldered to 0.5IN
JA
numbers are guidelines for the thermal performance of the device/pc-board system.
V
respect to Ground. Currents are positive into, negative out of the specified terminal.
IN
A B S O L U T E M A X I M U M R AT I N G S
Circuit
Bias
T H E R M A L D ATA
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
JA
Limit Circuit
can vary from 20ºC/W to > 40ºC/W depending on
J
Thermal
3 A L
= T
A
+ (P
P
O W
JT
JT
D
R O D U C T I O N
x
JA
JA
JA
D
).
2
copper area over backside ground
R O P O U T
Bandgap
Circuit
B L O C K D I A G R A M
P
(Note 1)
O S I T I V E
D
A T A
Control
Circuit
*60°C/W
3.0°C/W
3.0°C/W
60°C/W
R
S
E G U L A T O R S
H E E T
Output
Circuit
SOA Protection
Limit Circuit
Current
Circuit
* Pin 1 is GND for fixed voltage versions.
* Pin 1 is GND for fixed voltage versions.
PACKAGE PIN OUTS
TAB IS V
TAB IS V
DD PACKAGE
OUT
P PACKAGE
(Top View)
(Top View)
3
2
1
OUT
3
2
1
V
V
ADJ / GND*
IN
OUT
Copyright © 1999
V
Rev. 2.0a 10/00
OUT
V
V
ADJ / GND*
IN
OUT