Texas Instruments, LM723,LM723C pdf datasheet download

LM723,LM723C Voltage Regulator

General Description

The LM723/LM723C is a voltage regulator designed primarily
for series regulator applications. By itself, it will supply
output currents up to 150 mA; but external transistors can be
added to provide any desired load current. The circuit features
extremely low standby current drain, and provision is
made for either linear or foldback current limiting.
The LM723/LM723C is also useful in a wide range of other
applications such as a shunt regulator, a current regulator or
a temperature controller.
The LM723C is identical to the LM723 except that the
LM723C has its performance guaranteed over a 0°C to
+70°C temperature range, instead of .55°C to +125°C.

Features

n 150 mA output current without external pass transistor
n Output currents in excess of 10A possible by adding
external transistors
n Input voltage 40V max
n Output voltage adjustable from 2V to 37V
n Can be used as either a linear or a switching regulator

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 10)
Pulse Voltage from V+ to V− (50 ms) 50V
Continuous Voltage from V+ to V− 40V
Input-Output Voltage Differential 40V
Maximum Amplifier Input Voltage
(Either Input) 8.5V
Maximum Amplifier Input Voltage
(Differential) 5V
Current from VZ 25 mA
Current from VREF 15 mA
Internal Power Dissipation
Metal Can (Note 2) 800 mW
Cavity DIP (Note 2) 900 mW
Molded DIP (Note 2) 660 mW
Operating Temperature Range
LM723 −55°C to +150°C
LM723C 0°C to +70°C
Storage Temperature Range
Metal Can −65°C to +150°C
Molded DIP −55°C to +150°C
Lead Temperature (Soldering, 4 sec. max.)
Hermetic Package 300°C
Plastic Package 260°C
ESD Tolerance 1200V
(Human body model, 1.5 kΩ in series with 100 pF)

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