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LM2937T-5 5V 500mA Low Dropout Regulator IC

৳ 80.00

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The LM2937 is a positive voltage regulator capable of supplying up to 500 mA of load current. The use of a PNP power transistor provides a low dropout voltage characteristic. With a load current of 500 mA the minimum input to output voltage differential required for the output to remain in regulation is typically 0.5V (1V guaranteed maximum over the full operating temperature range). Special circuitry has been incorporated to minimize the quiescent current to typically only 10 mA with a full 500 mA load current when the input to output voltage differential is greater than 3V.

The LM2937 requires an output bypass capacitor for stability. As with most low dropout regulators, the ESR of this capacitor remains a critical design parameter, but the LM2937 includes special compensation circuitry that relaxes ESR requirements. The LM2937 is stable for all ESR below 3Ω. This allows the use of low ESR chip capacitors. Ideally suited for automotive applications, the LM2937 will protect itself and any load circuitry from reverse battery connections, two-battery jumps and up to +60V/−50V load dump transients. Familiar regulator features such as short circuit and thermal shutdown protection are also built in.

Datasheet:  PDF


  1. Fully specified for operation over −40˚C to +125˚C
  2. Output current in excess of 500 mA
  3. Output trimmed for 5% tolerance under all operating conditions
  4. n Typical dropout voltage of 0.5V at full rated load current
  5. Wide output capacitor ESR range, up to 3Ω
  6. Internal short circuit and thermal overload protection
  7. Reverse battery protection
  8. 60V input transient protection
  9. Mirror image insertion protection

Packing List:

1Pc * LM2937T-5 5V 500mA Low Dropout Regulator IC


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