LM2574N-005G

Voltage Regulators - DC DC Switching Regulators Overview

The LM2574N-005G is a monolithic integrated circuit switching voltage regulator manufactured by onsemi. It operates as a step-down (buck) converter with a fixed output voltage of 5V and a maximum output current capability of 500 mA. The device utilizes a buck topology and functions at a switching frequency of 58 kHz. It supports an input voltage range from 4.75 V to 40 V. The component is housed in an 8-pin PDIP package designed for through-hole mounting. It is rated for operation within a temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic design simplifies the implementation of step-down switching regulators
• Fixed internal oscillator eliminates the need for external timing components
• Built-in thermal shutdown protects against overheating under fault conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load DC/DC conversion modules
• Pre-regulator stages for linear post-regulators
• Efficient battery-powered systems requiring step-down regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix '005G' against official manufacturer documentation, as standard listings typically utilize '5G' or '5.0G' for the 5V variant. Confirm that the PDIP-8 package matches the required through-hole footprint. Ensure RoHS compliance requirements are met by checking the detailed datasheet specifications provided by onsemi before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from a higher input voltage source up to 40V. It is suitable for applications needing moderate current delivery up to 500mA with high efficiency. Consider the through-hole PDIP-8 package if PCB assembly constraints require it over surface-mount alternatives. Evaluate thermal management needs based on the power dissipation calculated from the input-output voltage differential and load current.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2574 series of SIMPLE SWITCHER power converters. The series includes variants with different fixed output voltages and high-voltage versions capable of handling higher input ranges. The LM2574N-005G specifically denotes the 5V output version in the standard voltage family, packaged for through-hole integration.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2574N-5G: Direct equivalent from onsemi with identical electrical characteristics and pinout. LM2574N-5.0/NOPB: Equivalent version from Texas Instruments featuring RoHS-compliant construction.