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LM105H/883 View Datasheet(PDF) - National ->Texas Instruments

Part NameLM105H/883 National-Semiconductor
National ->Texas Instruments National-Semiconductor
DescriptionVoltage Regulators
LM105H/883 Datasheet PDF : 7 Pages
1 2 3 4 5 6 7
June 1999
Voltage Regulators
General Description
The LM105 series are positive voltage regulators similar to
the LM100, except that an extra gain stage has been added
for improved regulation. A redesign of the biasing circuitry re-
moves any minimum load current requirement and at the
same time reduces standby current drain, permitting higher
voltage operation. They are direct, plug-in replacements for
the LM100 in both linear and switching regulator circuits with
output voltages greater than 4.5V. Important characteristics
of the circuits are:
Output voltage adjustable from 4.5V to 40V
Output currents in excess of 10A possible by adding ex-
ternal transistors
Load regulation better than 0.1%, full load with current
DC line regulation guaranteed at 0.03%/V
Ripple rejection on 0.01%V
45 mA output current without external pass transistor
Like the LM100, they also feature fast response to both load
and line transients, freedom from oscillations with varying re-
sistive and reactive loads and the ability to start reliably on
any load within rating. The circuits are built on a single silicon
chip and are supplied in a TO-99 metal can.
The LM105 is specified for operation for −55˚C TA
+125˚C, and the LM305/LM305A is specified for 0˚C TA
Schematic and Connection Diagrams
Metal Can Package
Top View
Order Number LM105H, LM105H/883,
SMD #5962-8958801, LM305H or LM305AH
See NS Package Number H08C
© 1999 National Semiconductor Corporation DS007755
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