LM2575-5.0WU
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Microchip Technology LM2575-5.0WU

Manufacturer No:
LM2575-5.0WU
Manufacturer:
Microchip Technology
Package:
Tube
Description:
IC REG BUCK 5V 1A TO263-5
Delivery:
Payment:
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Product Introduction

Overview

The LM2575-5.0WU from Microchip Technology is a high-efficiency step-down switching regulator. This device is part of the LM2575 series, which offers a compact and efficient replacement for traditional three-terminal adjustable linear regulators. It is designed to reduce the size of the heat sink and, in many cases, eliminate the need for one altogether. The LM2575-5.0WU is available in a TO-263-5 (D2PAK5) package and is suitable for a wide range of applications requiring high efficiency and reliability.

Key Specifications

ParameterValue
ManufacturerMicrochip Technology
Type of Integrated CircuitPMIC (Power Management IC)
Kind of Integrated CircuitDC/DC Converter
Input Voltage4V to 40V DC
Output Voltage5V DC (fixed), adjustable versions from 1.23V to 37V
Output Current1A
CaseTO-263-5 (D2PAK5)
MountingSMD (Surface Mount)
Frequency52kHz (fixed frequency internal oscillator)
TopologyBuck
Number of Channels1
Operating Temperature-40°C to +85°C
EfficiencyTypically > 80%
Tolerance±3% (fixed version), ±2% (adjustable version)
Duty Cycle Factor0...93%

Key Features

  • High efficiency, typically > 80%
  • Wide input voltage range: 4V to 40V
  • Wide output voltage range: 1.23V to 37V (adjustable versions)
  • Guaranteed 1A output current
  • Requires only 4 external components
  • 52kHz fixed frequency internal oscillator
  • Low power standby mode IQ typically < 200µA
  • Thermal shutdown and current limit protection
  • 100% electrical thermal limit burn-in
  • Uses readily available standard inductors

Applications

  • Simple high-efficiency step-down (buck) regulator
  • Efficient pre-regulator for linear regulators
  • On-card switching regulators
  • Positive to negative converter (inverting buck-boost)
  • Isolated flyback converter using minimum number of external components
  • Negative boost converter

Q & A

  1. What is the input voltage range of the LM2575-5.0WU?
    The input voltage range is 4V to 40V DC.
  2. What is the output voltage of the fixed version of the LM2575-5.0WU?
    The output voltage of the fixed version is 5V DC.
  3. What is the maximum output current of the LM2575-5.0WU?
    The maximum output current is 1A.
  4. What is the package type of the LM2575-5.0WU?
    The package type is TO-263-5 (D2PAK5).
  5. What is the operating temperature range of the LM2575-5.0WU?
    The operating temperature range is -40°C to +85°C.
  6. What is the efficiency of the LM2575-5.0WU?
    The efficiency is typically greater than 80%.
  7. Does the LM2575-5.0WU have thermal protection?
    Yes, it has thermal shutdown and current limit protection.
  8. How many external components are required for the LM2575-5.0WU?
    It requires only 4 external components.
  9. What is the frequency of the internal oscillator in the LM2575-5.0WU?
    The frequency of the internal oscillator is 52kHz.
  10. What are some common applications of the LM2575-5.0WU?
    Common applications include simple high-efficiency step-down regulators, efficient pre-regulators for linear regulators, and on-card switching regulators.

Product Attributes

Function:Step-Down
Output Configuration:Positive
Topology:Buck
Output Type:Fixed
Number of Outputs:1
Voltage - Input (Min):4V
Voltage - Input (Max):40V
Voltage - Output (Min/Fixed):5V
Voltage - Output (Max):- 
Current - Output:1A
Frequency - Switching:52kHz
Synchronous Rectifier:No
Operating Temperature:-40°C ~ 125°C (TJ)
Mounting Type:Surface Mount
Package / Case:TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
Supplier Device Package:TO-263-5
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Similar Products

Part Number LM2575-5.0WU LM2575-5.0BU LM2575-5.0WT
Manufacturer Microchip Technology Microchip Technology Microchip Technology
Product Status Active Obsolete Active
Function Step-Down Step-Down Step-Down
Output Configuration Positive Positive Positive
Topology Buck Buck Buck
Output Type Fixed Fixed Fixed
Number of Outputs 1 1 1
Voltage - Input (Min) 4V 4V 4V
Voltage - Input (Max) 40V 40V 40V
Voltage - Output (Min/Fixed) 5V 5V 5V
Voltage - Output (Max) - - -
Current - Output 1A 1A 1A
Frequency - Switching 52kHz 52kHz 52kHz
Synchronous Rectifier No No No
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Mounting Type Surface Mount Surface Mount Through Hole
Package / Case TO-263-6, D²Pak (5 Leads + Tab), TO-263BA TO-263-6, D²Pak (5 Leads + Tab), TO-263BA TO-220-5
Supplier Device Package TO-263-5 TO-263-5 TO-220-5

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