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LM2575-3.3WU The Microchip Technology LM2575-3.3WU is a 3.3V fixed output, 1A DC DC buck regulator. It operates with a 52kHz switching frequency and a wide input voltage range.
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LM2575-3.3WU

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology LM2575-3.3WU is a 3.3V fixed output, 1A DC DC buck regulator. It operates with a 52kHz switching frequency and a wide input voltage range.
✓ Total Stock: 26,329 pcs
$ Price Range: $0.16

LM2575-3.3WU Available from 1 distributor

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26,329 pcs
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26329 pcs On Request 1 On Request On Request 2020+ On Request On Request
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LM2575-3.3WU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Frequency
Function
Input Voltage
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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LM2575-3.3WU Description

Short technical summary and product information.

The LM2575-3.3WU from Microchip Technology is a monolithic integrated circuit designed for step-down (buck) switching regulator applications. This fixed 3.3V output version is capable of driving a 1A load with excellent line and load regulation. It simplifies power supply design by requiring a minimum number of external components and including internal frequency compensation and a fixed-frequency oscillator operating at 52kHz.

 

The regulator features a wide input voltage range from 4V to 40V and a wide output voltage range from 1.23V to 37V. It offers a high efficiency replacement for linear regulators, often eliminating the need for a heat sink. The device includes cycle-by-cycle current limiting and thermal shutdown for protection under fault conditions.

 

This component is available in a TO-263-5 surface mount package. Its design is suitable for various applications including simple high-efficiency step-down regulators and on-card switching regulators.

LM2575-3.3WU Quick Information

Product Type: DC DC Switching Regulator
Series: LM2575
Canonical Name: LM2575-3.3WU 3.3V 1A Buck Regulator
Subcategory: PMIC - Voltage Regulators - DC DC Switching Regulators

LM2575-3.3WU Compliance

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

LM2575-3.3WU Estimated Pricing

Qty Low High
1+ $0.16 $0.16

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

LM2575-3.3WU Features

  • Fixed 3.3V output voltage.
  • Guaranteed 1A output current.
  • Wide 4V to 40V input voltage range.
  • 52kHz fixed frequency oscillator.
  • Surface mount TO-263-5 package.

LM2575-3.3WU Applications

  • Used in industrial power supply circuits.
  • Suitable for automotive electronics systems.
  • Ideal for battery-powered equipment regulation.
  • Applied in distributed power architectures.

LM2575-3.3WU FAQs

6 frequently asked questions generated from this part’s specifications.
What is the output voltage of the LM2575-3.3WU?

The LM2575-3.3WU has a fixed output voltage of 3.3V.

What is the maximum output current for this regulator?

The LM2575-3.3WU is guaranteed to provide 1A of output current.

What is the operating input voltage range?

This regulator operates with an input voltage range of 4V to 40V.

What is the switching frequency of the LM2575-3.3WU?

The internal oscillator operates at a fixed frequency of 52kHz.

What type of package is the LM2575-3.3WU in?

The LM2575-3.3WU is supplied in a TO-263-5 package for surface mounting.

What is the operating temperature range?

The operating temperature range is -40°C to 125°C (TJ).

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