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L4971D The STMicroelectronics L4971D is a positive adjustable buck switching regulator IC designed for step-down applications. It offers an output current of 1.5A and operates within an input voltage range of 8V to 55V.
Mfr Part #:

L4971D

Available from 3 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics L4971D is a positive adjustable buck switching regulator IC designed for step-down applications. It offers an output current of 1.5A and operates within an input voltage range of 8V to 55V.
✓ Total Stock: 4,235 pcs
$ Price Range: $0.16

L4971D Available from 3 distributors

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✓ Non-Authorised
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3,283 pcs
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3283 pcs On Request 1 On Request On Request On Request On Request On Request
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531 pcs
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531 pcs On Request 1 On Request On Request 1406 On Request On Request
Braun Electronic Components ✓
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421 pcs
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421 pcs On Request 1 On Request On Request On Request On Request On Request
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L4971D 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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L4971D Description

Short technical summary and product information.

The L4971D from STMicroelectronics is a versatile integrated circuit designed for DC-DC step-down (buck) conversion. This positive adjustable regulator can handle an output current of up to 1.5A and accepts an input voltage ranging from 8V to 55V.

 

Key electrical specifications include an adjustable output voltage capability, with minimum and maximum limits of 3.3V and 50V respectively. The switching frequency can be set between 100kHz and 300kHz. It is designed without a synchronous rectifier.

 

Packaged in a 16-SOIC surface-mount case, the L4971D operates within a wide temperature range of -40°C to 150°C (TJ). Its robust design makes it suitable for various power management applications requiring efficient voltage regulation.

L4971D Quick Information

Product Type: Switching Regulator IC
Canonical Name: L4971D Buck Switching Regulator IC
Subcategory: DC DC Switching Regulators

L4971D Compliance

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

L4971D Estimated Pricing

Qty Low High
1+ $0.16 $0.16

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

L4971D Features

  • Positive adjustable buck switching regulator.
  • 1.5A maximum output current.
  • Wide input voltage range: 8V to 55V.
  • Adjustable output voltage: 3.3V to 50V.
  • Surface mount 16-SOIC package.

L4971D Applications

  • Power supply regulation.
  • DC-DC conversion.
  • Embedded systems power.
  • Industrial control systems.

L4971D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the L4971D?

The input voltage range is 8V to 55V.

What is the output voltage range of the L4971D?

The output voltage is adjustable from 3.3V to 50V.

What is the maximum output current of the L4971D?

The output current is 1.5A.

What is the switching frequency range of the L4971D?

The switching frequency is 100kHz to 300kHz.

What is the operating temperature range of the L4971D?

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

What package is the L4971D available in?

The L4971D is available in a 16-SOIC (0.295" width, 7.50mm width) surface mount package.

What is the function of the L4971D?

The L4971D is a step-down (buck) switching regulator with positive output configuration.

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