LM2575 Adjustable 1A Step-Down Voltage Regulator – Datasheet

The LM2575 Adjustable 1A Step-Down Voltage Regulator is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. This device is available in 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 LM2575 offers a high-efficiency replacement for the popular three-terminal linear regulator. Because of its high efficiency, the copper traces on the printed circuit board are normally the only heat sinking needed. A standard series of inductors optimized for use with the LM2575 is available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

LM2575 Pinout

LM2575 Pin Configuration

Pin No	Pin Name	Description
3	OUT	Output Pin
7	FB	Feedback Pin
11	GND	Ground Pin
9	ON/OFF	On/Off Pin
16	Vin	Input Voltage Pin

LM2575 Key Features

• 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

Application

• Simple high-efficiency step-down (buck) regulator
• Efficient pre-regulator for linear regulators
• On-card switching regulators

You can download this datasheet for LM2575 Adjustable 1A Step-Down Voltage Regulator – Datasheet from the link given below: