HomedatasheetLM2575S-AD

LM2575S-AD Datasheet

PMIC - Voltage Regulators - DC DC Switching Regulators
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Description

The LM2575S-AD of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an adjustable output version. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixed- frequency oscillator. The LM2575S-AD series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required. A standard series of inductors optimized for use with the LM2575S-AD are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies. LM2575S-AD Features • 3.3V, 5V, 12V, 15V, and Adjustable Output Versions• Adjustable Version Output Voltage Range, 1.23V to 37V (57V for HV Version) 14% Max Over Line and Load Conditions• Specified 1A Output Current• Wide Input Voltage Range, 40V up to 60V for HV Version• Requires Only 4 External Components• 52 kHz Fixed Frequency Internal Oscillator• TTL Shutdown Capability, Low Power Standby Mode• High Efficiency• Uses Readily Available Standard Inductors• Thermal Shutdown and Current Limit Protection• P+ Product Enhancement Tested LM2575S-AD Applications • Simple High-Efficiency Step-Down (Buck)Regulator• Efficient Pre-Regulator for Linear Regulators• On-Card Switching Regulators• Positive to Negative Converter (Buck-Boost)
Features

Parameters

[{"Name":"Voltage - Output","Value":"1.23 V ~ 37 V"},{"Name":"Voltage - Input ","Value":"4 V ~ 40 V"},{"Name":"Frequency - Switching ","Value":"52kHz"},{"Name":"Current - Output ","Value":"1A"},{"Name":"Operating Temperature ","Value":"-40°C ~ 125°C"},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information

MICROCHIP TECHNOLOGY

Microchip Technology Inc. is a leading provider of microcontroller, mixed-signal, analog and Flash-IP solutions, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.

Microchip Technology Inc. has acquired Atmel.


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