Microchip, LM2576WT Adjustable Switching Regulator, 1-Channel 3A Adjustable 5-Pin, TO-220

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RS Stock No.:
177-1611
Mfr. Part No.:
LM2576WT
Brand:
Microchip
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Brand

Microchip

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

Maximum Switching Frequency

52 kHz

Package Type

TO-220

Switching Regulator

Yes

Length

10.16mm

Minimum Operating Temperature

-40 °C

Height

14.68mm

Dimensions

10.16 x 4.5 x 14.68mm

Maximum Operating Temperature

+85 °C

Width

4.5mm

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

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