LM2575 Datasheet – 1A, Step-Down Switching Regulator

Part Number: LM2575

Function: 1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator

Package: TO-220, D2DAK Type

Manufacturer: ON Semiconductor


LM2575 Regulator


The LM2575 series of regulators are monolithic integrated circuits ideally suited for easy and convenient design of a step−down switching regulator (buck converter). All circuits of this series are capable of driving a 1.0 A load with excellent line and load regulation.

These devices are available in fixed output voltages of 3.3 V, 5.0 V,12 V, 15 V, and an adjustable output version. These regulators were designed to minimize the number of external components to simplify the power supply design. Standard series of inductors optimized for use with the LM2575 are offered by several different inductor manufacturers.


LM2575 datasheet


1. 3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions

2. Adjustable Version Output Voltage Range of 1.23 V to 37 V ±4% Maximum Over Line and Load Conditions

3. Guaranteed 1.0 A Output Current

4. Wide Input Voltage Range: 4.75 V to 40 V

5. Requires Only 4 External Components

6. 52 kHz Fixed Frequency Internal Oscillator

7. TTL Shutdown Capability, Low Power Standby Mode


• Simple and High−Efficiency Step−Down (Buck) Regulators
• Efficient Pre−Regulator for Linear Regulators
• On−Card Switching Regulators
• Positive to Negative Converters (Buck−Boost)

LM2575 Datasheet PDF Download

LM2575 pdf


Other data sheets are available within the file: LM2575D2T-015G, LM2575D2T-12R4G, LM2575D2T-15R4G

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