National Semiconductor LM2936-3.0 Ultra-Low Quiescent Current 3.0V Regulator Data Sheet
Summary
An advanced, ultra-low quiescent current LDO voltage regulator providing a stable 3.0V fixed output. Designed for maximizing battery life in demanding portable electronics and automotive systems. Featuring exceptional efficiency, low dropout capability, and robust protection against reverse polarity and thermal events over the industrial temperature range (−40°C to +125°C). This manual details comprehensive electrical specifications, multiple package options (SOT-223, TO-252), connection diagrams, and reliable application guidelines for system integration.
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LM 2936-3.0 ltra-Low uiescent urrent 3.0V egulator
LM2936-3.0 Ultra-Low Quiescent Current 3.0V Regulator General Description Features
The LM2936-3.0 ultra-low quiescent current regulator fea- Ultra low quiescent current (IQ µA for IO µA) tures low dropout voltage and low current in the standby Fixed 3.0V, m A output
mode. With less than µA quiescent current at µA ±2% Initial output tolerance load, the LM2936-3.0 is ideally suited for automotive and ±3%
Output tolerance over line, load, and temperature
other battery operated systems. The LM2936-3.0 retains all
Dropout voltage typically m V IO m A
of the features that are common to low dropout regulators
Reverse battery protection
including low dropout PNP pass device, short circuit pro-
−50V reverse transient protection
tection, reverse battery protection, and thermal shutdown.
Internal short circuit current limit
The LM2936-3.0 has 40V maximum operating voltage
limit, −40˚C to +125˚C operating temperature range, and Internal thermal shutdown protection ±3% output voltage tolerance over the entire output current, 40V operating voltage limit
input voltage, and temperature range. The LM2936-3.0 is 60V operating voltage limit for LM2936HV available in TO-92 package, SO-8 surface mount pack- Shutdown pin available with LM2936BM package 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. Required for stability. Must be rated for µF minimum over intended operating temperature range. Effective series resistance (ESR) is critical, see curve. Locate capacitor as close as possible to the regulator output and ground pins. Capacitance may be increased without bound.
Connection Diagrams
TO-252 SOT-223
View View
Order Number LM2936DT-3.0 Order Number LM2936MP-3.0 See NS Package Number TD03B See NS Package Number MA04A
National Semiconductor Corporation DS200016 www.national.com
Page Summary Contents For National Semiconductor LM2936-3.0 Ultra-Low Quiescent Current 3.0V Regulator Data Sheet
Manual Details
| Brand | National |
|---|---|
| Pages | 10 |
| File Size | 287.14 KB |
| Published | May 30, 2026 |
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Frequently Asked Questions
What is the main benefit of this regulator for battery-operated devices?
It features ultra low quiescent current, maintaining consumption of less than 20 µA at a 100 µA load.
What capacitor specifications are needed for stable operation?
The manual requires a minimum capacitance of 22 µF and stresses that the capacitor should be located as close possible to the regulator output and ground pins.
Does the LM2936-3.0 have built-in protection features?
Yes, it includes reverse battery protection, thermal shutdown, short circuit current limit, and a low dropout PNP pass device.
What are the operating temperature and voltage ranges for this regulator?
The operational range is -40°C to +125°C, with a maximum operating input voltage of +40V (and up to +60V for the HV variant).
How reliable is its output voltage regulation over time?
It offers good consistency, maintaining line and load regulation down to 10 mV across specified current ranges.