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L4978D The STMicroelectronics L4978D is an adjustable positive buck switching regulator IC. It offers a 2A output current and operates within an input voltage range of 8V to 55V.
Mfr Part #:

L4978D

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics L4978D is an adjustable positive buck switching regulator IC. It offers a 2A output current and operates within an input voltage range of 8V to 55V.
✓ Total Stock: 9,164 pcs
$ Price Range: $0.16

L4978D Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Fe Components ✓
Non-Authorised Inventory information
5,684 pcs
On Request
5684 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
3,480 pcs
On Request
3480 pcs On Request 1 On Request On Request On Request On Request On Request
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L4978D Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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L4978D Description

Short technical summary and product information.

The STMicroelectronics L4978D is a versatile buck switching regulator IC designed for step-down power conversion. It features an adjustable output voltage ranging from 3.3V to 50V and can deliver up to 2A of current.

 

This device operates with an input voltage range of 8V to 55V and a switching frequency between 100kHz and 300kHz. It is configured for a positive output and does not utilize a synchronous rectifier. The operating temperature range is -40°C to 150°C (TJ).

 

The L4978D is supplied in a 16-SOIC package, suitable for surface mount applications. Its robust design makes it suitable for various power management applications requiring efficient voltage regulation.

L4978D Quick Information

Product Type: Switching Regulator IC
Series: L4978
Canonical Name: L4978D Buck Switching Regulator IC
Subcategory: DC DC Switching Regulators

L4978D Compliance

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

L4978D Estimated Pricing

Qty Low High
1+ $0.16 $0.16

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

L4978D Features

  • Adjustable positive buck switching regulator.
  • 2A output current capability.
  • Wide input voltage range (8V to 55V).
  • Adjustable output voltage (3.3V to 50V).
  • Surface mount 16-SOIC package.

L4978D Applications

  • Used in industrial power supply modules.
  • Suitable for automotive battery-powered systems.
  • Ideal for telecom and networking equipment.
  • Applicable in distributed power architectures.
  • Common in point-of-load regulation circuits.

L4978D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output current of the L4978D?

The L4978D provides an output current of 2A.

What is the input voltage range for the L4978D?

The L4978D accepts an input voltage range from 8V to 55V.

What is the adjustable output voltage range of the L4978D?

The L4978D has an adjustable output voltage ranging from 3.3V to 50V.

What is the switching frequency of the L4978D?

The switching frequency for the L4978D is between 100kHz and 300kHz.

What is the operating temperature range for the L4978D?

The L4978D operates within a temperature range of -40°C to 150°C (TJ).

What type of package is the L4978D in?

The L4978D is supplied in a 16-SOIC (0.295" | 7.50mm Width) package.

Is the L4978D a synchronous rectifier?

No, the L4978D is not a synchronous rectifier.

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