LX8117 Microsemi Corporation, LX8117 Datasheet - Page 2

• Manufacturer Part Number: LX8117
• Description: 0.8, 1 & 1.2a Low Dropout Positive Regulators
• Manufacturer: Microsemi Corporation

LX8117-xx/8117A-xx/8117B-xx
2
Power Dissipation .................................................................................. Internally Limited
Input Voltage
Surge Voltage ............................................................................................................... 15V
Operating Junction Temperature
Storage Temperature Range ...................................................................... -65°C to 150°C
Lead Temperature (Soldering, 10 seconds) ............................................................. 300°C
Short-Circuit Protection ....................................................................................... Indefinite
Note 1. Exceeding these ratings could cause damage to the device. All voltages are with
ST PACKAGE:
DD PACKAGE:
DT PACKAGE:
Junction Temperature Calculation: T
thermal performance of the device/pc-board system. 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,
THERMAL RESISTANCE-JUNCTION TO TAB,
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
plane or internal power plane.
mounting technique. (See Application Notes Section: Thermal Considerations)
LX8117-00/8117A-00/8117B-00 (Adj.) ..................................................................... 15V
LX8117-33/8117A-33/8117B-33 (3.3V), LX8117-05/8117A-05/8117B-05 (5.0V) .... 15V
LX8117-25/8117A-25/8117B-25 (2.5V), LX8117-28/8117A-28/8117B-28 (2.85V) .. 12V
Plastic (ST, DD & DT Packages) .......................................................................... 150°C
JA
can be improved with package soldered to 0.5IN
respect to Ground. Currents are positive into, negative out of the specified terminal.
ADJ
V
IN
A B S O LUT E MAXIMU M RATINGS
Circuit
Bias
T H ER MAL DATA
0.8, 1 & 1.2A L
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
JA
J
can vary from 20ºC/W to > 40ºC/W depending on
= T
Limit Circuit
Thermal
A
+ (P
P
JT
JT
JC
D
R O D U C T I O N
x
JA
JA
JA
JA
). The
2
copper area over backside ground
O W
Bandgap
BL OCK D IA GR A M
Circuit
JA
D
numbers are guidelines for the
R O P O U T
(Note 1)
D
P
A T A
Control
Circuit
*150°C/W
O S I T I V E
*60°C/W
*80°C/W
15°C/W
10°C/W
9°C/W
S
H E E T
R
E G U L AT O R S
Output
Circuit
Limit Circuit
Current
PACKAGE PIN OUTS
TAB IS V
DD PACKAGE (D
TAB IS V
DT PACKAGE (D-Pak)
TAB IS V
OUT
ST PACKAGE
(Top View)
(Top View)
(Top View)
OUT
OUT
3
2
1
3. IN
2. OUT
1. ADJ / GND
3. IN
2. OUT
1. ADJ / GND
2
IN
OUT
ADJ / GND
Pak)
V
Copyright © 1999
OUT
Rev. 1.4
3/99