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
COO (Country of Origin): CN
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

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
Height 14.68mm
Maximum Operating Temperature +85 °C
Maximum Switching Frequency 52 kHz
Dimensions 10.16 x 4.5 x 14.68mm
Length 10.16mm
Width 4.5mm
Minimum Operating Temperature -40 °C
Temporarily out of stock - back order for despatch 07/01/2020, delivery within 3 working days from despatch date
Price Each (In a Tube of 50)
SGD 2.32
(exc. GST)
SGD 2.48
(inc. GST)
Per unit
Per Tube*
50 - 50
100 +
*price indicative
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