LM2576 3.3V 3A Step-Down Voltage Regulator – Datasheet

TheLM2576 3.3V 3A Step-Down Voltage Regulator is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator. This device features an output voltage that is capable of driving a 3A load with excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and includes internal frequency compensation and a fixed-frequency oscillator.

The LM2576 offers a high-efficiency replacement for the popular three-terminal adjustable linear regulator. It substantially reduces the size of the heat sink, and in many cases, no heat sink is required.

LM2576 Pinout

LM2576 Pin Configuration

Pin No	Pin Name	Description
1	Vin	Input Voltage Pin
2	OUT	Output Pin
3	GND	Ground Pin
4	FB	Feedback Pin
5	ON’/OFF	Complement On/Off Pin

LM2576 Key Features

• Requires only 6 external components
• 52 kHz fixed frequency internal oscillator
• Low power standby mode, la typically <200 A
• Efficiency typically over 80%
• Uses readily available standard inductors

Application

• Efficient pre-regulator for linear regulators On-card switching regulators
• Positive to negative converter (Inverting Buck-Boost)
• Isolated Fly back Converter using minimum number of external components

You can download this datasheet for LM2576 3.3V 3A Step-Down Voltage Regulator – Datasheet from the link given below: