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LM2931CT Scheda tecnica(PDF) 1 Page - ON Semiconductor

Il numero della parte LM2931CT
Spiegazioni elettronici  LOW DROPOUT VOLTAGE REGULATORS
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Produttore elettronici  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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Order this document by LM2931/D
LM2931
Series
LOW DROPOUT
VOLTAGE REGULATORS
Z SUFFIX
PLASTIC PACKAGE
CASE 29
T SUFFIX
PLASTIC PACKAGE
CASE 221A
Heatsink surface
connected to Pin 2.
DT–1 SUFFIX
PLASTIC PACKAGE
CASE 369
(DPAK)
D2T SUFFIX
PLASTIC PACKAGE
CASE 936
(D2PAK)
Pin 1. Output
2. Ground
3. Input
Pin 1. Input
2. Ground
3. Output
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
3
1
2
DT SUFFIX
PLASTIC PACKAGE
CASE 369A
(DPAK)
3
1
2
FIXED OUTPUT VOLTAGE
3
1
2
3
1
2
3
1
1
MOTOROLA ANALOG IC DEVICE DATA
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–to–output 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–up with mirror–image 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 ‘C’
suffix adjustable output regulators feature an output inhibit pin which is
extremely useful in microprocessor–based systems.
Input–to–Output Voltage Differential of < 0.6 V @ 100 mA
Output Current in Excess of 100 mA
Low Bias Current
60 V Load Dump Protection
–50 V Reverse Transient Protection
Internal Current Limiting with Thermal Shutdown
Temporary Mirror–Image Protection
Ideally Suited for Battery Powered Equipment
Economical 5–Lead TO–220 Package with Two Optional Leadforms
Available in Surface Mount SOP–8, D2PAK and DPAK Packages
High Accuracy (±2%) Reference (LM2931AC) Available
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SOP–8)
1
8
ADJUSTABLE
FIXED
(Top View)
N.C.
Gnd
Input
N.C.
Gnd
Output
1
8
54
(Top View)
Output
Inhibit
Gnd
Input
Adjust
Gnd
Output
1
8
54
TV SUFFIX
PLASTIC PACKAGE
CASE 314B
T SUFFIX
PLASTC PACKAGE
CASE 314D
TH SUFFIX
PLASTIC PACKAGE
CASE 314A
D2T SUFFIX
PLASTIC PACKAGE
CASE 936A
(D2PAK)
Heatsink surface connected to Pin 3.
Pin 1. Adjust
2. Output Inhibit
3. Ground
4. Input
5. Output
Heatsink surface (shown as
terminal 6 in case outline
drawing) is connected to Pin 3.
5
1
5
1
5
1
5
1
ADJUSTABLE OUTPUT VOLTAGE
(See Following Page for Ordering Information.)
© Motorola, Inc. 1997
Rev 4


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