LM2937ES-10 National Semiconductor, LM2937ES-10 Datasheet
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LM2937ES-10
Manufacturer Part Number
LM2937ES-10
Description
Linear Voltage Regulator IC
Manufacturer
National Semiconductor
Datasheets
1.LM2937IMPX-5.0.pdf
(13 pages)
2.LM2937IMPX-5.0.pdf
(11 pages)
3.LM2937IMPX-5.0.pdf
(11 pages)
Specifications of LM2937ES-10
No. Of Pins
3
Output Current
0.5A
Operating Temperature Range
-40°C To +125°C
Termination Type
SMD
Mounting Type
Through Hole
Voltage Regulator Type
LDO Linear
Peak Reflow Compatible (260 C)
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM2937ES-10
Manufacturer:
NS/国半
Quantity:
20 000
© 2000 National Semiconductor Corporation
LM2937
500 mA Low Dropout Regulator
General Description
The LM2937 is a positive voltage regulator capable of sup-
plying 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 0.5V (1V guaranteed maximum over the full operat-
ing temperature range). Special circuitry has been incorpo-
rated to minimize the quiescent current to typically only
10 mA with a full 500 mA load current when the input to out-
put voltage differential is greater than 3V.
The LM2937 requires an output bypass capacitor for stabil-
ity. As with most low dropout regulators, the ESR of this ca-
pacitor remains a critical design parameter, but the LM2937
includes special compensation circuitry that relaxes ESR re-
quirements. The LM2937 is stable for all ESR below 3 . 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 con-
Connection Diagram and Ordering Information
Order Number LM2937ET-5.0, LM2937ET-8.0,
LM2937ET-10, LM2937ET-12 or LM2937ET-15
See NS Package Number T03B
TO-220 Plastic Package
Front View
Top View
LM2937ES-10, LM2937ES-12 or LM2937ES-15
Order Number LM2937ES-5.0, LM2937ES-8.0,
DS011280-2
DS011280-5
DS011280
TO-263 Surface-Mount Package
See NS Package Number TS3B
nections, two-battery jumps and up to +60V/−50V load dump
transients. Familiar regulator features such as short circuit
and thermal shutdown protection are also built in.
Features
n Fully specified for operation over −40˚C to +125˚C
n Output current in excess of 500 mA
n Output trimmed for 5% tolerance under all operating
n Typical dropout voltage of 0.5V at full rated load current
n Wide output capacitor ESR range, up to 3
n Internal short circuit and thermal overload protection
n Reverse battery protection
n 60V input transient protection
n Mirror image insertion protection
conditions
See NS Package Number MP04A
LM2937IMP-12 or LM2937IMP-15
LM2937IMP-8.0, LM2937IMP-10,
Order Number LM2937IMP-5.0,
SOT-223 Plastic Package
Front View
Side View
DS011280-6
DS011280-26
www.national.com
March 2000