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L4940V5 - 1.5A very low drop voltage regulator

Download the L4940V5 datasheet PDF. This datasheet also covers the L4940 variant, as both devices belong to the same 1.5a very low drop voltage regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

The L4940 series of three-terminal positive regulators is available in TO-220 and D²PAK packages and with several fixed output voltages, making it useful in a wide range of industrial and consumer applications.

Key Features

  • Precise 5, 8.5, 12 V outputs.
  • Low dropout voltage (450 mV typ. at 1 A).
  • Very low quiescent current.
  • Thermal shutdown.
  • Short-circuit protection.
  • Reverse polarity protection.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (L4940_STMicroelectronics.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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Other Datasheets by STMicroelectronics

Part Number Description
L4940V85 1.5A very low drop voltage regulator
L4940 1.5A very low drop voltage regulator
L4941 VERY LOW DROP 1A REGULATOR
L4943 MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
L4945 5V VERY LOW DROP VOLTAGE REGULATOR

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
TO-220 L4940 1.5 A very low drop voltage regulator IC Datasheet - production data D²PAK Table 1. Device summary Order code TO-220 D²PAK Output voltages L4940V5 L4940V85 L4940D2T5-TR L4940D2T12-TR 5V 8.5 V 12 V Features • Precise 5, 8.5, 12 V outputs • Low dropout voltage (450 mV typ. at 1 A) • Very low quiescent current • Thermal shutdown • Short-circuit protection • Reverse polarity protection Description The L4940 series of three-terminal positive regulators is available in TO-220 and D²PAK packages and with several fixed output voltages, making it useful in a wide range of industrial and consumer applications.