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LM2574YN The Microchip Technology LM2574YN is an adjustable switching voltage regulator designed for step-down (buck) applications. It offers a 0.5A output current and supports input voltages up to 40V.
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LM2574YN

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology LM2574YN is an adjustable switching voltage regulator designed for step-down (buck) applications. It offers a 0.5A output current and supports input voltages up to 40V.
✓ Total Stock: 26,321 pcs
$ Price Range: $0.16

LM2574YN Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
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26,321 pcs
On Request
26321 pcs On Request 1 On Request On Request 2020+ On Request On Request
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LM2574YN Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Frequency
Function
Input Voltage
Lead Spacing
Lead Style
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Current
Output Type
Output Voltage
SVHC Present
Supplier Device Package
Supplier Package
Supply Current
Synchronous Rectifier
Topology
Voltage
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LM2574YN Description

Short technical summary and product information.

The LM2574YN from Microchip Technology is a versatile and easy-to-use 0.5A buck regulator. This integrated circuit contains all active circuitry necessary to construct a step-down switching regulator, requiring a minimum of external components. It features an adjustable output voltage range and operates with a switching frequency of 52kHz.

 

Designed for efficiency, the LM2574YN supports input voltages up to 40V and provides excellent line and load regulation. It includes built-in thermal shutdown and current limit protection for robust operation under fault conditions. The device is available in an 8-PDIP package and is designed for through-hole mounting, making it suitable for various PCB designs.

 

This regulator is ideal for applications requiring simple, high-efficiency step-down conversion. Its features include a low standby current and the ability to operate without a heatsink in many applications due to its high efficiency. The adjustable output voltage capability makes it adaptable to a wide range of power supply designs.

LM2574YN Quick Information

Product Type: Switching Voltage Regulator
Series: LM2574
Canonical Name: LM2574YN Adjustable Buck Regulator
Subcategory: Voltage Regulators & Voltage Controllers

LM2574YN Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LM2574YN Estimated Pricing

Qty Low High
1+ $0.16 $0.16

Estimated market price range - modelled values for guidance only, not live distributor offers.

LM2574YN Features

  • Adjustable 0.5A step-down buck regulator.
  • Wide input voltage range up to 40V.
  • Internal 52kHz fixed frequency oscillator.
  • Thermal shutdown and current limit protection.
  • 8-PDIP package for through-hole mounting.

LM2574YN Applications

  • Simple high-efficiency step-down regulators.
  • Efficient pre-regulators for linear regulators.
  • On-card switching regulators.
  • Positive to negative converter applications.

LM2574YN FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output voltage range of the LM2574YN?

The output voltage is adjustable from 1.23V to 37V.

What is the maximum input voltage for the LM2574YN?

The input voltage can be up to 40V.

What output current can the LM2574YN deliver?

It delivers up to 0.5A output current.

What is the switching frequency of the LM2574YN?

The switching frequency is 52kHz.

What package is the LM2574YN available in?

It comes in an 8-pin PDIP through-hole package (8-DIP).

What is the operating temperature range of the LM2574YN?

The operating junction temperature range is -40°C to 125°C.

Is the LM2574YN a synchronous buck regulator?

No, it is a non-synchronous buck regulator.

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