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Voltage Regulators
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LM2940S-5.0 1A Low Dropout Voltage Regulator
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Some images are stock photos
Manufacturer: National Semiconductor
Part Number: LM2940S-5.0
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Price: $0.80
7 available for immediate delivery
Product code: T276
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Item Specifications and Additional Information:
The LM2940 positive voltage regulator features the
ability to source 1A of output current with a dropout voltage of
typically 0.5V and a maximum of 1V over the entire temperature
range.
Furthermore, a quiescent current reduction circuit
has been included which reduces the ground current
when the differential between the input voltage and the output
voltage exceeds approximately 3V. The quiescent current
with 1A of output current and an input-output differential of 5V
is therefore only 30 mA. Higher quiescent currents only exist
when the regulator is in the dropout mode (VIN - VOUT <-3V).
Designed also for vehicular applications, the LM2940 and all regulated circuitry are protected from reverse
battery installations or 2-battery jumps. During line
transients, such as load dump when the input voltage can
momentarily exceed the specified maximum operating voltage,
the regulator will automatically shut down to protect both
the internal circuits and the load. The LM2940 cannot
be harmed by temporary mirror-image insertion.
Familiar regulator features such as short circuit and thermal overload
protection are also provided.
Features:
Dropout voltage typically 0.5V @IO = 1A
Output current in excess of 1A
Output voltage trimmed before assembly
Reverse battery protection
Internal short circuit current limit
Mirror image insertion protection
P+ Product Enhancement tested
Manufactured by: National Semiconductor
Part Number: LM2940S-5.0
Full datasheet: LM2940S-5.0 |
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