Microchip Technology, LM2576WT Adjustable Switching Regulator 3A 5-Pin, TO-220

  • RS Stock No. 177-1611
  • Mfr. Part No. LM2576WT
  • Manufacturer Microchip
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

The LM2576 series of monolithic integrated circuits provide all the active functions for a step-down (buck) switching regulator. Fixed versions are available with a 3.3V, 5V, or 12V fixed output. Adjustable versions have an output voltage range from 1.23V to 37V. Both versions are capable of driving a 3A load with excellent line and load regulation.

Additional 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

Specifications
Attribute Value
Maximum Output Current 3A
Maximum Output Voltage 37 V
Minimum Output Voltage 1.23 V
Minimum Input Voltage 4 V
Maximum Input Voltage 40 V
Output Type Adjustable
Mounting Type Through Hole
Number of Outputs 1
Pin Count 5
Package Type TO-220
Switching Regulator Yes
Maximum Switching Frequency 52 kHz
Maximum Operating Temperature +85 °C
Height 14.68mm
Width 4.5mm
Dimensions 10.16 x 4.5 x 14.68mm
Length 10.16mm
Minimum Operating Temperature -40 °C
350 In stock for delivery within 4 working days
Price Each (In a Tube of 50)
SGD 2.533
(exc. GST)
SGD 2.71
(inc. GST)
units
Per unit
Per Tube*
50 - 50
SGD2.533
SGD126.65
100 +
SGD2.42
SGD121.00
*price indicative
Related Products
Description:
The MIC4575 is a series of easy to use fixed and adjustable BiCMOS step-down (buck) switch-mode voltage regulators. The 200kHz MIC4575 duplicates the pinout and function of the 52kHz LM2575. The higher switching frequency may allow up to a 2:1 ...
The MIC4684 is a high-efficiency 200kHz stepdown (buck) ...
Description:
The MIC4684 is a high-efficiency 200kHz stepdown (buck) switching regulator. Power conversion efficiency of above 85% is easily obtainable for a wide variety of applications. The MIC4684 achieves 2A of continuous current in an 8-lead SO (small outline) package at ...
Linear Technology presents a range of micropower monolithic ...
Description:
Linear Technology presents a range of micropower monolithic step-down buck converters these are intended for applications that need to increase efficiency at light loads. These devices produce low standby quiescent currents when in burst mode. They can be used in ...
Linear Technology offers a selection of step down ...
Description:
Linear Technology offers a selection of step down (buck) switching regulators with both synchronous and non-synchronous internal switches. They are capable of offering 2.25V up to 30V input voltages and a variety of switching frequencies. Distributed power systems, battery powered ...