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L4978 The STMicroelectronics L4978 is an adjustable buck switching regulator designed for step-down voltage conversion. It offers a 2A output current and operates within a frequency range of 100kHz to 300kHz.
Mfr Part #:

L4978

Available from 4 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics L4978 is an adjustable buck switching regulator designed for step-down voltage conversion. It offers a 2A output current and operates within a frequency range of 100kHz to 300kHz.
✓ Total Stock: 52,906 pcs
$ Price Range: $0.16

L4978 Available from 4 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
30,000 pcs
On Request
30000 pcs On Request 1 On Request On Request 2027+ On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
9,491 pcs
On Request
9491 pcs On Request 1 On Request On Request 2027+ On Request On Request
Fe Components ✓
Non-Authorised Inventory information
8,000 pcs
On Request
8000 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
5,415 pcs
On Request
5415 pcs On Request 1 On Request On Request On Request 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.

L4978 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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L4978 Description

Short technical summary and product information.

The STMicroelectronics L4978 is a versatile integrated circuit designed for DC-DC power conversion. Functioning as a buck (step-down) regulator, it provides an adjustable output voltage with a maximum output current of 2A. The device operates within a switching frequency range of 100kHz to 300kHz, allowing for efficient power management.

 

This regulator is suitable for applications requiring a positive output voltage. It features an operating temperature range of -40°C to 150°C (TJ), ensuring reliable performance in various environmental conditions. The component is housed in an 8-DIP package and utilizes a through-hole mounting type, making it compatible with traditional PCB assembly processes.

 

The L4978 is designed with a non-synchronous rectifier topology. Its adjustable output capability provides design flexibility for engineers. The component is specified with an 8V input voltage, and it has a single positive output configuration.

L4978 Quick Information

Product Type: Voltage Regulator
Canonical Name: L4978 Adjustable Buck Switching Regulator
Subcategory: DC-DC

L4978 Compliance

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

L4978 Estimated Pricing

Qty Low High
1+ $0.16 $0.16

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

L4978 Features

  • Adjustable buck switching regulator
  • 2A maximum output current
  • 8V input voltage capability
  • 100kHz to 300kHz switching frequency
  • Through hole 8-DIP package

L4978 Applications

  • DC-DC power conversion
  • Step-down voltage regulation
  • Adjustable output voltage circuits
  • Power management applications

L4978 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the output current of the L4978?

The L4978 provides a 2A output current.

What is the input voltage range for the L4978?

The L4978 operates from an 8V input voltage.

What is the operating temperature range of the L4978?

The L4978 operates from -40°C to 150°C (junction temperature).

What package is the L4978 available in?

The L4978 is available in an 8-DIP (0.300", 7.62mm) through-hole package.

What is the switching frequency of the L4978?

The L4978 has a switching frequency range of 100kHz to 300kHz.

Is the L4978 a synchronous rectifier regulator?

No, the L4978 is not a synchronous rectifier regulator.

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