LM2574DW-ADJR2G The ON Semiconductor LM2574DW-ADJR2G is an adjustable output voltage switching regulator designed for easy step-down (buck) converter designs. It can drive a 0.5 A load with a wide input voltage range.
Mfr Part #:

LM2574DW-ADJR2G

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor LM2574DW-ADJR2G is an adjustable output voltage switching regulator designed for easy step-down (buck) converter designs. It can drive a 0.5 A load with a wide input voltage range.
✓ Total Stock: 7,350 pcs
$ Price Range: $0.16

LM2574DW-ADJR2G Available from 2 distributors

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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7,000 pcs
7000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
350 pcs
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LM2574DW-ADJR2G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Frequency
Function
Industrial Grade
Input Voltage
Lead Spacing
Lead Style
Medical Grade
Military Grade
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Current
Output Type
Output Voltage
SVHC Present
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage

LM2574DW-ADJR2G Description

Short technical summary and product information.

The LM2574DW-ADJR2G from ON Semiconductor is a monolithic integrated circuit designed for creating efficient step-down (buck) switching regulators. This adjustable version allows for output voltages ranging from 1.23 V to 37 V, with a guaranteed output current of 0.5 A. It operates with a wide input voltage range of 4.75 V to 40 V and features a fixed internal oscillator frequency of 52 kHz.

 

Designed to minimize external components, the LM2574DW-ADJR2G requires only four external components for a complete power supply design. Its switch-mode operation offers significantly higher efficiency compared to linear regulators, especially at higher input voltages. The device includes thermal shutdown and cycle-by-cycle current limiting for protection under fault conditions. It is available in a 16-SOIC surface mount package.

 

This regulator is suitable for various applications including simple and high-efficiency step-down regulators, efficient pre-regulators for linear regulators, and on-card switching regulators. The NCV prefix is available for automotive and other applications requiring site and control changes.

LM2574DW-ADJR2G Quick Information

Product Type: Switching Regulator
Canonical Name: LM2574DW-ADJR2G Adjustable Output Voltage Step-Down Switching Regulator
Subcategory: DC-DC Switching Regulator

LM2574DW-ADJR2G Compliance

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

LM2574DW-ADJR2G Estimated Pricing

Qty Low High
1+ $0.16 $0.16

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

LM2574DW-ADJR2G Features

  • Adjustable output voltage from 1.23V to 37V.
  • Guaranteed 0.5A output current.
  • Wide input voltage range of 4.75V to 40V.
  • Fixed 52kHz internal oscillator.
  • Surface mount 16-SOIC package.

LM2574DW-ADJR2G Applications

  • Simple step-down (buck) regulators.
  • Pre-regulator for linear regulators.
  • On-card switching regulators.
  • Positive to negative converters.
  • Negative step-up converters.

LM2574DW-ADJR2G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output voltage range of the LM2574DW-ADJR2G?

The adjustable output voltage range is 1.23 V to 37 V with ±4% tolerance over line and load conditions.

What is the output current rating?

The nominal output current is 0.5 A.

What is the input voltage range?

The input voltage range is 4.75 V to 40 V.

What switching frequency does the device operate at?

The device operates at a fixed 52 kHz switching frequency.

What package is the LM2574DW-ADJR2G available in?

It is available in a 16-SOIC surface-mount package with 0.295\" (7.50 mm) width.

What is the operating temperature range?

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

What topologies does this regulator support?

It supports buck, boost, and buck-boost topologies (step-down, step-up, and inverting).

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