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BD3940FP-E2 The BD3940FP-E2 from ROHM Semiconductor is a 3.3V linear voltage regulator capable of delivering up to 500mA. It features a low quiescent current and is housed in a TO-252 package.
Mfr Part #:

BD3940FP-E2

Available from 1 distributors
Mfr Name: ROHM Semiconductor
ROHM Semiconductor
The BD3940FP-E2 from ROHM Semiconductor is a 3.3V linear voltage regulator capable of delivering up to 500mA. It features a low quiescent current and is housed in a TO-252 package.
✓ Total Stock: 1,600 pcs
$ Price Range: $0.28

BD3940FP-E2 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
1,600 pcs
On Request
1600 pcs On Request 1 On Request On Request 17+ On Request On Request
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BD3940FP-E2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Mounting Type
Number of Regulators
Operating Temperature
Output Configuration
Output Type
PSRR
Protection Features
Supplier Device Package
Voltage
Voltage Dropout (Max)
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BD3940FP-E2 Description

Short technical summary and product information.

The BD3940FP-E2 is a linear voltage regulator IC manufactured by ROHM Semiconductor, designed for automotive body control applications. It offers a stable 3.3V output voltage with a maximum output current of 500mA. This device is compatible with onboard vehicle microcontrollers and features a high 36V breakdown voltage.

 

Key electrical characteristics include a super-low dark current of 30 µA (Typ.), low-saturation voltage type P-channel DMOS output transistors with an output on resistance of 1.6 Ω (Typ.), and high precision output voltage of ±2%. It supports the use of low-ESR ceramic capacitors as output phase compensation capacitors.

 

The regulator is built with over-current protection and thermal shutdown circuits for enhanced reliability. It operates within a temperature range of -40°C to +125°C and is supplied in a TO-252-3 surface-mount package, suitable for various vehicle equipment, car stereos, and satellite navigation systems.

 

This series is ideal for lowering current consumption and costs in battery direct-coupled systems, making it a suitable choice for power management in automotive applications.

BD3940FP-E2 Quick Information

Product Type: Linear Voltage Regulator
Canonical Name: BD3940FP-E2 Linear Voltage Regulator
Subcategory: Linear

BD3940FP-E2 Compliance

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

BD3940FP-E2 Estimated Pricing

Qty Low High
1+ $0.28 $0.28

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

BD3940FP-E2 Features

  • 3.3V fixed output voltage.
  • 500mA maximum output current.
  • Super-low dark current of 30 µA (Typ.).
  • Built-in over current and thermal shutdown.
  • TO-252 surface mount package.

BD3940FP-E2 Applications

  • Ideal for automotive body control.
  • Suitable for car stereos.
  • Used in satellite navigation systems.
  • Designed for battery direct-coupled systems.

BD3940FP-E2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range for the BD3940FP-E2?

The BD3940FP-E2 operates with an input voltage range of 4.5V to 25V.

What is the output voltage of the BD3940FP-E2?

The fixed output voltage is 3.3V with ±2% accuracy at 25°C.

What is the maximum output current of the BD3940FP-E2?

The maximum output current is 500mA.

What is the dropout voltage of the BD3940FP-E2?

The maximum dropout voltage is 0.9V at 100mA output current.

What is the operating temperature range of the BD3940FP-E2?

The operating temperature range is -40°C to +125°C.

What protection features does the BD3940FP-E2 include?

The device includes over-current and over-temperature protection.

What package is the BD3940FP-E2 available in?

The BD3940FP-E2 is available in a surface-mount TO-252-3 (DPAK) package.

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