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LM2575T-3.3 The Texas Instruments LM2575T-3.3 is a 1A step-down (buck) switching voltage regulator with a fixed 3.3V output. It operates at a 52kHz frequency and is housed in a TO-220-5 package.
Mfr Part #:

LM2575T-3.3

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LM2575T-3.3 is a 1A step-down (buck) switching voltage regulator with a fixed 3.3V output. It operates at a 52kHz frequency and is housed in a TO-220-5 package.
✓ Total Stock: 539 pcs
$ Price Range: $0.16

LM2575T-3.3 Available from 2 distributors

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✓ Non-Authorised
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Smaxon Electronics ✓
Non-Authorised Inventory information
393 pcs
On Request
393 pcs On Request 1 On Request On Request On Request On Request On Request
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
146 pcs
On Request
146 pcs On Request 1 On Request On Request 0023G/ On Request On Request
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LM2575T-3.3 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Frequency
Function
Lead Style
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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LM2575T-3.3 Description

Short technical summary and product information.

The LM2575T-3.3 from Texas Instruments is a monolithic integrated circuit designed as a step-down (buck) switching voltage regulator. It is capable of driving a 1A load with excellent line and load regulation, providing a stable 3.3V output. This device operates at a fixed frequency of 52kHz and requires minimal external components for operation.

 

Key electrical characteristics include a 1A output current capability and a wide input voltage range, typically starting from 40V. The regulator is designed for through-hole mounting and comes in a TO-220-5 package. It operates within a temperature range of -40°C to 125°C (TJ).

 

This series offers a high-efficiency replacement for traditional linear regulators, often reducing the need for large heat sinks. The LM2575T-3.3 integrates features such as internal frequency compensation, an internal oscillator, and thermal shutdown and current limit protection for enhanced reliability. It is suitable for various on-card switching regulator applications.

LM2575T-3.3 Quick Information

Product Type: DC DC Switching Regulator
Series: LM2575
Canonical Name: LM2575T-3.3
Subcategory: DC DC Switching Regulator

LM2575T-3.3 Compliance

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

LM2575T-3.3 Estimated Pricing

Qty Low High
1+ $0.16 $0.16

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

LM2575T-3.3 Features

  • Fixed 3.3V output voltage.
  • Specified 1A output current.
  • 52kHz fixed frequency oscillator.
  • Through hole mounting.
  • TO-220-5 package.

LM2575T-3.3 Applications

  • Simple step-down power supplies.
  • Industrial power conversion systems.
  • Battery-powered equipment regulation.
  • Automotive power management circuits.
  • Post-regulation for higher voltage rails.

LM2575T-3.3 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the output voltage of the LM2575T-3.3?

The LM2575T-3.3 provides a fixed output voltage of 3.3V.

What is the maximum output current of the LM2575T-3.3?

The maximum output current is 1A.

What is the input voltage range for the LM2575T-3.3?

The input voltage range is up to 40V.

What package does the LM2575T-3.3 come in?

The LM2575T-3.3 is available in a TO-220-5 through-hole package.

What is the operating temperature range of the LM2575T-3.3?

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

What is the switching frequency of the LM2575T-3.3?

The switching frequency is 52kHz.

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