Products > Integrated Circuits (ICs) > Power Management ICs > LM2576-5.0WU
  • LM2576-5.0WU

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Conv DC-DC 4V to 40V Step Down Single-Out 5V 3A 6-Pin(5+Tab) TO-263 Tube

  • Package/Case :
  • TO-263-5
  • Product Categories :
  • DC/DC Switching Regulators
  • RoHs Status:
  • Rohs
  • In-stock:
  • 15


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LM2576-5.0WU Product Details

The LM2576-5.0WU 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.

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.

The LM2576-5.0WU 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.

A standard series of inductors available from several different manufacturers are ideal for use with the LM2576-5.0WU 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 output load conditions. The oscillator frequency is guaranteed 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.



  • 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

Technical Parameters

  • Input Voltage MAX
  • 40 V
  • Switching Frequency
  • 52 kHz
  • Output Voltage
  • 5 V
  • Output Current
  • 3 A
  • Number of Outputs
  • 1
  • Maximum Operating Temperature
  • + 85 C
  • Mounting Style
  • Package / Case
  • TO-263-5
  • Input Voltage MIN
  • 4 V
  • Minimum Operating Temperature
  • - 40 C
  • Packaging
  • Tube
  • Series
  • LM2576
  • Topology
  • Buck
  • Type
  • Buck Regulators

LM2576-5.0WU Documents

  • LM2576 Technical Documentation of Application Note

LM2576-5.0WU Related Products

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1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that LM2576-5.0WU is the original manufacturer or agent of MICROCHIP?
We have a professional business development department to strictly test and verify the qualifications of MICROCHIP original manufacturers and agents. All MICROCHIP suppliers must pass the qualification review before they can publish their LM2576-5.0WU devices; we pay more attention to the channels and quality of LM2576-5.0WU products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of LM2576-5.0WU chips? Including MICROCHIP original factory information, DC/DC Switching Regulators application, LM2576-5.0WU pictures?
You can use Jotrin's intelligent search engine, or filter by Step Down up to 75V Products category, or find it through Microchip Technology, Inc Information page.
Q: Are the MICROCHIP's LM2576-5.0WU price and stock displayed on the platform accurate?
The MICROCHIP's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LM2576-5.0WU, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Q: What is the process for returns or replacement of LM2576-5.0WU?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the LM25765.0WU we delivered, we will accept the replacement or return of the LM2576-5.0WU only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of LM2576-5.0WU.
(3)The LM2576-5.0WU is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as LM2576-5.0WU datasheet pdf, LM2576 pin diagram?
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Microchip Technology, Inc

Microchip Technology Inc. is a leading manufacturer of microcontroller and analog products, providing low-risk product development, lower total system cost, and faster time to market for thousands of diverse customer applications worldwide. Microchip offers outstanding technical support along with d...
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