1FEATURES
2• Complete Specifications at 1A Load
• Output Voltage Tolerances of ±4% at T j = 25°C
• Internal Thermal Overload Protection
• Internal Short-circuit Current Limit
• Output Transistor Safe Area Protection
• P+ Product Enhancement Tested

DESCRIPTION
The LM140K monolithic 3-terminal positive voltage
regulator employs internal current-limiting, thermal
shutdown and safe-area compensation, making them
essentially indestructible. If adequate heat sinking is
provided, they can deliver over 1.0A output current.
They are intended as fixed voltage regulators in a wide range of applications including local (on-card)
regulation for elimination of noise and distribution
problems associated with single-point regulation. In
addition to use as fixed voltage regulators, these
devices can be used with external components to
obtain adjustable output voltages and currents.
Considerable effort was expended to make the entire
series of regulators easy to use and minimize the
number of external components. It is not necessary to
bypass the output, although this does improve
transient response. Input bypassing is needed only if
the regulator is located far from the filter capacitor of
the power supply.
The LM140K is available in 5V, 12V and 15V options
in the steel TO-3 power package.