Microchip, LM2575-3.3WU Step-Down Switching Regulator 1A Adjustable 5-Pin D2PAK

  • RS Stock No. 146-3232
  • Mfr. Part No. LM2575-3.3WU
  • Manufacturer Microchip
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

The LM2575 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, 12V, or 15V fixed output. Adjustable versions have an output voltage range from 1.23V to 37V. Both versions are capable of driving a 1A load with excellent line and load regulation. These regulators are simple to use because they require a minimum number of external components and include internal frequency compensation and a fixed-frequency oscillator.

Voltage over specified line and load conditions
Guaranteed 1A 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

Attribute Value
Maximum Output Current 1A
Maximum Output Voltage 3.46 V
Regulator Function Buck Regulator
Minimum Output Voltage 3.16 V
Minimum Input Voltage 4 V
Maximum Input Voltage 40 V
Output Type Adjustable
Mounting Type Surface Mount
Number of Outputs 1
Pin Count 5
Package Type TO-263
Switching Regulator Yes
Line Regulation ±2 %
Load Regulation ±2 %
Width 10.66mm
Minimum Operating Temperature -40 °C
Height 4.59mm
Maximum Switching Frequency 52 kHz
Maximum Operating Temperature +85 °C
Length 9.16mm
Dimensions 9.16 x 10.66 x 4.59mm
Efficiency 75%
200 In stock for delivery within 5 working day(s) (Global Stock)
Price (ex. GST) Each (In a Tube of 50)
$ 2.96
(exc. GST)
$ 3.26
(inc. GST)
Per unit
Per Tube*
50 - 50
100 - 450
500 - 950
1000 +
*price indicative
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