LX8941CP(1999) 查看數據表（PDF） - Microsemi Corporation
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LX8941CP Datasheet PDF : 3 Pages
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LX8941
PRODUCT DATABOOK 1996/1997
ADJUSTABLE LOW DROPOUT REGULATOR
P R E L I M I N A RY D ATA S H E E T
A B S O L U T E M A X I M U M R AT I N G S (Note 1)
Input Voltage (V ) ....................................................................................................... 26V
IN
Operating Junction Temperature
Plastic (P, DD Package) ........................................................................................ 150°C
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 respect
to Ground. Currents are positive into, negative out of the specified terminal.
THERMAL DATA
P PACKAGE:
THERMAL RESISTANCE-JUNCTION TO TAB, θJT
THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA
DD PACKAGE:
4.5°C/W
60°C/W
THERMAL RESISTANCE-JUNCTION TO TAB, θJT
THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA
4.5°C/W
60°C/W
Junction Temperature Calculation: T = T + (P x θ ).
J
A
D
JA
The θ numbers are guidelines for the thermal performance of the device/pc-board system.
JA
All of the above assume no ambient airflow.
PACKAGE PIN OUTS
TAB IS GND
5
1
P PACKAGE
(Top View)
ON/OFF
ADJ
GND
VO
VIN
TAB IS GND
5
ON/OFF
4
ADJ
3
GND
2
VO
1
VIN
DD PACKAGE
(Top View)
C1*
0.1µF
ON
OFF
BLOCK DIAGRAM
INPUT VOLTAGE
* Required if regulator is located far from power supply
filter.
1 VIN
THERMAL
SHUTDOWN
2 VO
4 ADJ
OUTPUT
VOLTAGE
C2
10µF
ON/
OFF 5
ON/OFF
CIRCUIT
LX8941
3 GND
2
Copyright © 1999
Rev. 0.6 4/99
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