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LM2931ACT Datasheet

  • LM2931ACT

  • Motorola, Inc [Low Dropout Voltage Regulators]

  • 311.39KB

  • MOTOROLA

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Order this document by LM2931/D
Low Dropout
Voltage Regulators
The LM2931 series consists of positive fixed and adjustable output
voltage regulators that are specifically designed to maintain proper
regulation with an extremely low input鈥搕o鈥搊utput voltage differential. These
devices are capable of supplying output currents in excess of 100 mA and
feature a low bias current of 0.4 mA at 10 mA output.
Designed primarily to survive in the harsh automotive environment, these
devices will protect all external load circuitry from input fault conditions
caused by reverse battery connection, two battery jump starts, and
excessive line transients during load dump. This series also includes internal
current limiting, thermal shutdown, and additionally, is able to withstand
temporary power鈥搖p with mirror鈥搃mage insertion.
Due to the low dropout voltage and bias current specifications, the
LM2931 series is ideally suited for battery powered industrial and consumer
equipment where an extension of useful battery life is desirable. The 鈥楥鈥?/div>
suffix adjustable output regulators feature an output inhibit pin which is
extremely useful in microprocessor鈥揵ased systems.
鈥?/div>
Input鈥搕o鈥揙utput Voltage Differential of < 0.6 V @ 100 mA
LM2931
Series
LOW DROPOUT
VOLTAGE REGULATORS
FIXED OUTPUT VOLTAGE
Z SUFFIX
PLASTIC PACKAGE
CASE 29
1
2
3
Pin 1. Output
2. Ground
3. Input
T SUFFIX
PLASTIC PACKAGE
CASE 221A
Heatsink surface
connected to Pin 2.
Pin 1. Input
2. Ground
3. Output
3
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Output Current in Excess of 100 mA
Low Bias Current
60 V Load Dump Protection
鈥?50 V Reverse Transient Protection
Internal Current Limiting with Thermal Shutdown
Temporary Mirror鈥揑mage Protection
Ideally Suited for Battery Powered Equipment
Economical 5鈥揕ead TO鈥?20 Package with Two Optional Leadforms
Available in Surface Mount SOP鈥?, D2PAK and DPAK Packages
High Accuracy (
卤
2%) Reference (LM2931AC) Available
1
2
1
3
1
2
3
DT SUFFIX
PLASTIC PACKAGE
CASE 369A
(DPAK)
D2T SUFFIX
PLASTIC PACKAGE
CASE 936
(D2PAK)
DT鈥? SUFFIX
PLASTIC PACKAGE
CASE 369
(DPAK)
1
2
3
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
(See Following Page for Ordering Information.)
FIXED
N.C.
Gnd
Input
8
1
5
4
N.C.
Gnd
Output
8
1
ADJUSTABLE OUTPUT VOLTAGE
Pin 1. Adjust
2. Output Inhibit
3. Ground
4. Input
5. Output
1
5
TH SUFFIX
PLASTIC PACKAGE
CASE 314A
(Top View)
ADJUSTABLE
Output
Inhibit
Gnd
Input
8
1
5
4
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SOP鈥?)
Adjust
Gnd
Output
TV SUFFIX
PLASTIC PACKAGE
CASE 314B
T SUFFIX
PLASTC PACKAGE
CASE 314D
1
1
5
5
D2T SUFFIX
PLASTIC PACKAGE
CASE 936A
(D2PAK)
Heatsink surface (shown as
terminal 6 in case outline
drawing) is connected to Pin 3.
Rev 4
1
5
(Top View)
Heatsink surface connected to Pin 3.
漏
Motorola, Inc. 1997
MOTOROLA ANALOG IC DEVICE DATA
1

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