LM2576WU

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> Semiconductors - ICs

> Power Management

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Details for Microchip Technology

LM2576WU

3A Step-Down SMPS Regulator
Buy Directly from Microchip Technology (1670 in Stock)
$1.1800 per unit
Series Information for LM2576WU - Microchip Technology

Features

  • feature
    52kHz fixed frequency internal oscillator
  • feature
    80% efficiency (adjustable version typically > 80%)
  • feature
    Guaranteed 3A output current
  • feature
    Low power standby mode IQ typically < 200u00b5A
  • feature
    Requires only 4 external components
  • feature
    Thermal shutdown and current limit pro
  • feature
    Uses readily available standard inductors
  • feature
    Voltage over specified line and load conditions: Fixed version: u00b13% max. output voltage Adjustable version: u00b12% max. feedback voltage
  • feature
    Wide input voltage range: 4V to 40V
  • feature
    Wide output voltage range 1.23V to 37V

Description

DC/DC CONV BUCK 52KHZ-TO-263-5
The LM2576 series of monolithic integrated circuits provide all the active functions for a step-down (buck) switching regulator.Fixedversionsareavailablewitha3.3V,5V,or12V 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. These regulators are simple to use because they require a minimumnumberofexternalcomponentsandincludeinternal frequency compensation and a fixed-frequency oscillator. 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. Astandardseriesofinductorsavailablefromseveraldifferent manufacturers are ideal for use with the LM2576 series. This feature greatly simplifies the design of switch-mode power supplies. The feedback voltage is guaranteed to ±2% tolerance for adjustable versions, and the output voltage is guaranteed to ±3% for fixed versions, within specified input voltages and outputloadconditions.Theoscillatorfrequencyisguaranteed to ±10%. External shutdown is included, featuring less than 200µA standby current. The output switch includes cycle-by- cycle current limiting and thermal shutdown for full protection under fault conditions.

Specifications

Topology:
Buck (Step Down)
Input Voltage Min:
4V
Input Voltage Max:
40V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
TO-263
No. of Pins:
5Pins
Output Current:
3A
Output Voltage Min:
1.23V
Output Voltage Max:
37V
Switching Frequency:
52kHz
Operating Temperature Max:
85°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)

Alternate Descriptions

Avnet America

3A STEP-DOWN SMPS REGULATOR

Microchip Technology Inc

3A Step-Down SMPS Regulator

Avnet Europe

3A STEP-DOWN SMPS REGULATOR

Future Electronics

LM2576 Series 40 V 52 kHz 3 A Simple Step-Down Buck Regulator - TO-263-5