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LP2957

Features: 5V output with in 1.4% over temperature (Agrade)Easily programmed for snap-on/snap-off outputGuaranteed 250 mA output currentExtremely low quiescent currentLow Input-Output voltage required for regulationReverse battery protectionExtremely tight line and load regulationVery low temperatu...

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SeekIC No. : 004398674 Detail

LP2957: Features: 5V output with in 1.4% over temperature (Agrade)Easily programmed for snap-on/snap-off outputGuaranteed 250 mA output currentExtremely low quiescent currentLow Input-Output voltage require...

LP2957 Data Sheet

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Part Number:
LP2957
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/27

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Product Details

Description



Features:

5V output with in 1.4% over temperature (Agrade)
Easily programmed for snap-on/snap-off output
Guaranteed 250 mA output current
Extremely low quiescent current
Low Input-Output voltage required for regulation
Reverse battery protection
Extremely tight line and load regulation
Very low temperature coefficient
Current and thermal limiting
Error flag signals when output is out of regulation




Application

-High-efficiency linear regulator
-Battery-powered regulator




Pinout

Connection Diagram




Specifications

Operating Junction
Temperature Range −40˚C to + 125˚C
Storage Temperature Range −65˚C to + 150˚C
Lead Temperature
(Soldering,5 Seconds) 260˚C
Power Dissipation (Note2) Internally Limited
Input Supply Voltage −20V to + 30V
Shutdown</a> Input −0.3V to + 30V
ESD Rating 2kV




Description

The LP2957 is a 5V micropower voltage regulator with elec-tronic shutdown,error flag,very low quiescent current(150 µA typical at 1mA load),and very low dropout voltage(470mV typical at 250mA load current).

Output can be wired for snap-on/snap-off operation to elimi-nate transition voltage states where µP operation may beun-predictable.

Output crowbar (50mA typical pull-down current)willbring down the output quickly when the regulator snaps off or when the shutdown function is activated.

The part has tight line and load regulation(0.04% typical) and low output temperature coefficient (20 ppm/˚C typical).

The accuracy of the 5V output is guaranteed at room tem- perature and over the full operating temperature range.

The LP2957 is available in the five-lead TO-220 and TO-263 packages.






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