Name: Microchip LM2576-3.3WT
Brand: Microchip
SKU: 7026227
Price: 1.32 USD
Availability: InStock

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Image for illustration purposes only,
refer to technical specifications

Manufacturer Part #

LM2576-3.3WT

LM2576 Series 40 V 52 kHz 3 A Simple Step-Down Buck Regulator - TO-220-5

LM2576-3.3WT Datasheet
ECAD Model: Convert this file for your ECAD tool by downloading the free Library Loader. Learn more about ECAD model.
Mfr. Name:	Microchip
Standard Pkg:	Product Variant Information section Available Packaging Package Qty: 50 per Tube Package Style: TO-220-5 Mounting Method: Flange Mount
Date Code:

Microchip LM2576-3.3WT - Technical Attributes

Topology:	Buck
Input Voltage:	4V to 40V
Output Current-Max:	3A
Switching Frequency-Max:	52kHz
Package Style:	TO-220-5
Mounting Method:	Flange Mount

Features & Applications

The LM2576-3.3WT is a step down switching regulator with monolithic integrated circuits, available in adjustable versions of output voltage ranging from 1.23 V to 37 V.

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

Features:

3.3V, 5V, 12V, and adjustable output versions
Voltage over specified line and load conditions:
- Fixed version: ±3% max. output voltage
- Adjustable version: ±2% max. feedback voltage
Guaranteed 3A output current
Wide input voltage range: 4V to 40V
Wide output voltage range: 1.23V to 37V
Requires only 4 external components
52kHz fixed frequency internal oscillator
Low power standby mode IQ typically < 200µA
80% efficiency (adjustable version typically > 80%)
Uses readily available standard inductors
Thermal shutdown and current limit protection
100% electrical thermal limit burn-in

Applications:

Simple high-efficiency step-down (buck) regulator
Efficient pre-regulator for linear regulators
On-card switching regulators
Positive to negative converter (inverting buck-boost)
Isolated flyback converter using minimum number of external components
Negative boost converter