LM29 National Semiconductor, LM29 Datasheet

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LM29

Manufacturer Part Number
LM29
Description
LM2900/LM3900/LM3301 Quad Amplifiers
Manufacturer
National Semiconductor
Datasheet

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© 1998 National Semiconductor Corporation
LM2930
3-Terminal Positive Regulator
General Description
The LM2930 3-terminal positive regulator features an ability
to source 150 mA of output current with an input-output dif-
ferential of 0.6V or less. Efficient use of low input voltages
obtained, for example, from an automotive battery during
cold crank conditions, allows 5V circuitry to be properly pow-
ered with supply voltages as low as 5.6V. Familiar regulator
features such as current limit and thermal overload protec-
tion are also provided.
Designed originally for automotive applications, the LM2930
and all regulated circuitry are protected from reverse battery
installations or 2 battery jumps. During line transients, such
as a load dump (40V) when the input voltage to the regulator
can momentarily exceed the specified maximum operating
voltage, the regulator will automatically shut down to protect
both internal circuits and the load. The LM2930 cannot be
harmed by temporary mirror-image insertion.
Fixed outputs of 5V and 8V are available in the plastic
TO-220 and TO-263 power packages.
Connection Diagrams
Order Number LM2930T-5.0 or LM2930T-8.0
See NS Package Number T03B
Plastic Package
Front View
(TO-220)
DS005539
DS005539-1
Features
n Input-output differential less than 0.6V
n Output current in excess of 150 mA
n Reverse battery protection
n 40V load dump protection
n Internal short circuit current limit
n Internal thermal overload protection
n Mirror-image insertion protection
n P
Voltage Range
LM2930T-5.0:
LM2930T-8.0:
LM2930S-5.0:
LM2930S-8.0:
+
Product Enhancement tested
Order Number LM2930S-5.0 or LM2930S-8.0
Plastic Surface-Mount Package
See NS Package Number TS3B
Side View
Top View
(TO-263)
DS005539-8
DS005539-7
www.national.com
April 1998
5V
8V
5V
8V

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