LM2936-3.0 NSC [National Semiconductor], LM2936-3.0 Datasheet

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LM2936-3.0

Manufacturer Part Number
LM2936-3.0
Description
Ultra-Low Quiescent Current 3.0V Regulator
Manufacturer
NSC [National Semiconductor]
Datasheet
© 2002 National Semiconductor Corporation
LM2936-3.0
Ultra-Low Quiescent Current 3.0V Regulator
General Description
The LM2936-3.0 ultra-low quiescent current regulator fea-
tures low dropout voltage and low current in the standby
mode. With less than 20 µA quiescent current at a 100 µA
load, the LM2936-3.0 is ideally suited for automotive and
other battery operated systems. The LM2936-3.0 retains all
of the features that are common to low dropout regulators
including a low dropout PNP pass device, short circuit pro-
tection, reverse battery protection, and thermal shutdown.
The LM2936-3.0 has a 40V maximum operating voltage
limit, a −40˚C to +125˚C operating temperature range, and
±
input voltage, and temperature range. The LM2936-3.0 is
available in a TO-92 package, a SO-8 surface mount pack-
age, as well as SOT-223 and TO-252 surface mount power
packages.
Typical Application
* Required if regulator is located more than 2" from power supply filter capacitor.
*
curve. Locate capacitor as close as possible to the regulator output and ground pins. Capacitance may be increased without bound.
Connection Diagrams
*
3% output voltage tolerance over the entire output current,
Required for stability. Must be rated for 22 µF minimum over intended operating temperature range. Effective series resistance (ESR) is critical, see
See NS Package Number TD03B
Order Number LM2936DT-3.0
Top View
TO-252
20001625
DS200016
Features
n Ultra low quiescent current (I
n Fixed 3.0V, 50 mA output
n
n
n Dropout voltage typically 200 mV
n Reverse battery protection
n −50V reverse transient protection
n Internal short circuit current limit
n Internal thermal shutdown protection
n 40V operating voltage limit
n 60V operating voltage limit for LM2936HV
n Shutdown pin available with LM2936BM package
±
±
2% Initial output tolerance
3% Output tolerance over line, load, and temperature
See NS Package Number MA04A
Order Number LM2936MP-3.0
20001601
Top View
SOT-223
Q
20001626
≤ 20 µA for I
@
I
O
= 50 mA
www.national.com
O
= 100 µA)
June 2002

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LM2936-3.0 Summary of contents

Page 1

... With less than 20 µA quiescent current at a 100 µA load, the LM2936-3.0 is ideally suited for automotive and other battery operated systems. The LM2936-3.0 retains all of the features that are common to low dropout regulators including a low dropout PNP pass device, short circuit pro- tection, reverse battery protection, and thermal shutdown ...

Page 2

... Connection Diagrams 8-Pin SO (M) Top View Order Number LM2936M-3.0 See NS Package Number M08A 8-Pin SO (M) Top View Order Number LM2936BM-3.0, LM2936HVBMA-3.0 See NS Package Number MO8A www.national.com (Continued) 20001606 20001628 See NS Package Number MUA08A 2 TO-92 20001602 Bottom View Order Number LM2936Z-3.0 See NS Package Number Z03A ...

Page 3

... OUT 0.1mA ≤ I Capacitance (C ) ESR OUT (Note 1) Maximum Operating Input Voltage - LM2936 Maximum Operating Input Voltage - LM2936HV only +60V, −50V Maximum Shutdown Pin Voltage - LM2936BM only 2000V Internally limited MSO-8 (MUA08A) θ 150˚C TO-92 (Z03A) θ −65˚C to +150˚C SO-8 (M08A) θ ...

Page 4

... Note 3: The maximum power dissipation is a function − T )/θ this dissipation is exceeded, the die temperature will rise above 150˚C and the LM2936 will go into thermal shutdown. D Jmax A JA Note 4: Typicals are at 25˚C (unless otherwise specified) and represent the most likely parametric norm. ...

Page 5

Typical Performance Characteristics Quiescent Current Quiescent Current Output Capacitor ESR (Continued) 20001611 20001613 20001615 5 Quiescent Current 20001612 Quiescent Current 20001614 Peak Output Current 20001616 www.national.com ...

Page 6

... Peak Output Current Ripple Rejection Output Impedance Applications Information Unlike other PNP low dropout regulators, the LM2936 re- mains fully operational to 40V. Owing to power dissipation characteristics of the available packages, full output current cannot be guaranteed for all combinations of ambient tem- perature and input voltage. ...

Page 7

... Continuous operation near the thermal shutdown tem- perature should be avoided as it may have a negative affect on the life of the device. While the LM2936-3.0 will survive input transients to +60V, (Continued) output regulation is not guaranteed for input voltages greater than 40V. The LM2936 will not withstand a output short circuit with the input above 40V because of safe operating area limitations in the internal PNP pass device ...

Page 8

Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 8-Lead Small Outline Molded Package (M) NS Package Number M08A TO-252 Package (DT) NS Package Number TD03B 8 ...

Page 9

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) SOT-223 Package (MP) NS Package Number MA04A 3-Lead TO-92 Plastic Package (Z) NS Package Number Z03A 9 www.national.com ...

Page 10

Physical Dimensions LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. ...

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