900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






etcTI

LM2937 Datasheet Preview

LM2937 Datasheet

500-mA Low Dropout Regulator

No Preview Available !

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
LM2937
SNVS100F – MARCH 2000 – REVISED JULY 2014
LM2937 500-mA Low Dropout Regulator
1 Features
1 Fully Specified for Operation Over 40°C to 125°C
• Output Current in Excess of 500 mA
• Output Trimmed for 5% Tolerance Under all
Operating Conditions
• Typical Dropout Voltage of 0.5 V at Full Rated
Load Current
• Wide Output Capacitor ESR Range, up to 3 Ω
• Internal Short Circuit and Thermal Overload
Protection
• Reverse Battery Protection
• 60-V Input Transient Protection
• Mirror Image Insertion Protection
2 Applications
• Automotive
• Industrial Control
• Point-of-Load regulation
space
space
space
Simplified Schematic
3 Description
The LM2937 is a positive voltage regulator capable of
supplying up to 500 mA of load current. The use of a
PNP power transistor provides a low dropout voltage
characteristic. With a load current of 500 mA the
minimum input to output voltage differential required
for the output to remain in regulation is typically 0.5 V
(1-V ensured maximum over the full operating
temperature range). Special circuitry has been
incorporated to minimize the quiescent current to
typically only 10 mA with a full 500-mA load current
when the input to output voltage differential is greater
than 3 V.
The LM2937 requires an output bypass capacitor for
stability. As with most low dropout regulators, the
ESR of this capacitor remains a critical design
parameter, but the LM2937 includes special
compensation circuitry that relaxes ESR
requirements. The device is stable for all ESR below
3 Ω. This allows the use of low ESR chip capacitors.
Ideally suited for automotive applications, the LM2937
will protect itself and any load circuitry from reverse
battery connections, two-battery jumps, and up to 60-
V/50-V load dump transients. Familiar regulator
features such as short circuit and thermal shutdown
protection are also built in.
PART
NUMBER
LM2937
Device Information(1)
PACKAGE
BODY SIZE (NOM)
TO-220 (3)
SOT (4)
TO-263 (3)
14.986 mm x 10.66 mm
6.50 mm x 3.5 mm
10.18 mm x 8.41 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




etcTI

LM2937 Datasheet Preview

LM2937 Datasheet

500-mA Low Dropout Regulator

No Preview Available !

LM2937
SNVS100F – MARCH 2000 – REVISED JULY 2014
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 Handling Ratings ...................................................... 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics: LM2937-5 ........................ 5
6.6 Electrical Characteristics: LM2937-8 ........................ 5
6.7 Electrical Characteristics: LM2937-10 ...................... 5
6.8 Electrical Characteristics: LM2937-12 ...................... 7
6.9 Electrical Characteristics: LM2937-15 ...................... 7
6.10 Typical Characteristics ............................................ 8
7 Detailed Description ............................................ 11
7.1 Overview ................................................................. 11
7.2 Functional Block Diagram ....................................... 11
7.3 Feature Description................................................. 11
7.4 Device Functional Modes........................................ 12
8 Application and Implementation ........................ 13
8.1 Application Information............................................ 13
8.2 Typical Application ................................................. 13
9 Power Supply Recommendations...................... 17
10 Layout................................................................... 18
10.1 Layout Guidelines ................................................. 18
10.2 Layout Example .................................................... 18
11 Device and Documentation Support ................. 19
11.1 Trademarks ........................................................... 19
11.2 Electrostatic Discharge Caution ............................ 19
11.3 Glossary ................................................................ 19
12 Mechanical, Packaging, and Orderable
Information ........................................................... 19
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision E (June 2013) to Revision F
Page
• Changed format to meet new TI standards; added Device Information and Handling Ratings tables; updated
connection drawings; rename Functional Description and Applications sections, reformat and add new information,
add Devices and Documentation section .............................................................................................................................. 1
2
Submit Documentation Feedback
Product Folder Links: LM2937
Copyright © 2000–2014, Texas Instruments Incorporated


Part Number LM2937
Description 500-mA Low Dropout Regulator
Maker etcTI
PDF Download

LM2937 Datasheet PDF






Similar Datasheet

1 LM293 Dual Differential Comparators
etcTI
2 LM293 Low power dual voltage comparator
NXP
3 LM293 LOWPOWER DUAL VOLTAGE COMPARATORS
STMicroelectronics
4 LM293 Low Power Low Offset Voltage Dual Comparators
National Semiconductor
5 LM293 Low Offset Voltage Dual Comparators
ON Semiconductor
6 LM293-EP DUAL DIFFERENTIAL COMPARATOR
etcTI
7 LM293-N Low-Power Low-Offset Voltage Dual Comparators
etcTI
8 LM2930 3-Terminal Positive Regulator
National Semiconductor
9 LM2930 3-Terminal Positive Regulator
etcTI





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy