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L4940D2T5 The STMicroelectronics L4940D2T5 is a linear voltage regulator providing a fixed 5V output at up to 1.5A. It features a low dropout voltage and is housed in a D2PAK surface mount package.
Mfr Part #:

L4940D2T5

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics L4940D2T5 is a linear voltage regulator providing a fixed 5V output at up to 1.5A. It features a low dropout voltage and is housed in a D2PAK surface mount package.
✓ Total Stock: 667 pcs
$ Price Range: $0.30

L4940D2T5 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
MW.FEP S.p.A. ✓
Non-Authorised Inventory information
500 pcs
On Request
500 pcs On Request 1 On Request On Request On Request On Request On Request
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
167 pcs
On Request
167 pcs On Request 1 On Request On Request 0838P//A/ On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

L4940D2T5 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Input Voltage
Mounting Type
Number of Regulators
Operating Temperature
Output Configuration
Output Current
Output Type
PSRR
Power Dissipation
Protection Features
Supplier Device Package
Supplier Package
Tape & Reel
Voltage
Voltage Dropout (Max)
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L4940D2T5 Description

Short technical summary and product information.

The STMicroelectronics L4940D2T5 is a versatile three-terminal positive voltage regulator designed for a wide range of industrial and consumer applications. It offers a precise 5V fixed output voltage with a maximum output current capability of 1.5A.

 

Key electrical characteristics include a low dropout voltage, typically 500mV at 1.5A, and very low quiescent current, making it suitable for battery-powered equipment to prolong battery life. The device incorporates internal current limiting, antisaturation circuitry, thermal shutdown, and safe area protection for enhanced reliability.

 

This regulator is available in a D2PAK (TO-263-3) surface mount package, facilitating efficient board space utilization and automated assembly. The operating temperature range is from -40°C to 150°C, ensuring performance in demanding environments. Its features make it ideal for applications requiring stable voltage regulation with minimal power loss.

L4940D2T5 Quick Information

Product Type: Linear Voltage Regulator
Series: L4940
Canonical Name: L4940 Series 5V 1.5A Linear Voltage Regulator
Subcategory: Linear

L4940D2T5 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

L4940D2T5 Estimated Pricing

Qty Low High
1+ $0.30 $0.30

Estimated market price range - modelled values for guidance only, not live distributor offers.

L4940D2T5 Features

  • Fixed 5V output voltage.
  • 1.5A maximum output current.
  • Low dropout voltage (0.9V max @ 1.5A).
  • Surface mount D2PAK package.
  • Thermal shutdown and short circuit protection.

L4940D2T5 Applications

  • Suitable for battery-powered equipment.
  • Used in industrial applications.
  • Consumer electronics power supplies.
  • General purpose voltage regulation.

L4940D2T5 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the output voltage of the L4940D2T5?

The L4940D2T5 provides a fixed 5V output voltage.

What is the maximum output current for the L4940D2T5?

The L4940D2T5 has an internally limited output current, specified up to 1.5A.

What is the dropout voltage of the L4940D2T5?

The dropout voltage is a maximum of 0.9V at 1.5A.

What type of package is the L4940D2T5 in?

The L4940D2T5 is supplied in a TO-263-3, D²Pak (2 Leads + Tab), TO-263AB package.

What is the operating temperature range for the L4940D2T5?

The operating temperature range is -40°C to 150°C.

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