LM2574N-3.3G

Description：IC REG BUCK BST 3.3V 500MA 8PDIP
Series：-
Mfr：onsemi
Package：Tube

SKU:73e702944cbc Category: Voltage Regulators - DC DC Switching Regulators Brand: onsemi

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Product introduction

LM2574N-3.3G is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists onsemi. Its product description is IC REG BUCK BST 3.3V 500MA 8PDIP. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2574N-3.3G

Description：IC REG BUCK BST 3.3V 500MA 8PDIP
Series：-
Mfr：onsemi
Package：Tube
Function：Step-Up, Step-Down, Step-Up/Step-Down
Output Configuration：Positive or Negative
Topology：Buck, Boost, Buck-Boost
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：4.75V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Current - Output：500mA
Frequency - Switching：52kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Through Hole
Package / Case：8-DIP (0.300", 7.62mm)
Supplier Device Package：8-PDIP
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2574N-3.3G

LM2574N-3.3G

Voltage Regulators - DC DC Switching Regulators Overview

The LM2574N-3.3G is a monolithic integrated circuit from the LM2574 series, functioning as a step-down switching voltage regulator. It operates in a buck topology with a fixed 3.3V output and a maximum output current of 500 mA. The device utilizes a 58 kHz internal oscillator for efficient power conversion. It supports an input voltage range from 4.75 V to 40 V and is housed in an 8-pin PDIP package designed for through-hole mounting. The component is rated for operation within a temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrates a 500 mA power switch for direct step-down regulation
Includes a built-in 58 kHz fixed-frequency oscillator
Features internal thermal shutdown and current limiting protection

Voltage Regulators - DC DC Switching Regulators Applications

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

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'G' corresponds to lead-free packaging requirements. Confirm the manufacturer designation matches onsemi specifications. Ensure the PDIP-8 package dimensions align with the target PCB footprint. Validate RoHS compliance status against current regulatory standards before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required with up to 500 mA load capacity. The through-hole PDIP-8 package is suitable for prototyping or applications where surface mount options are not preferred. Consider the 40 V maximum input voltage limit for higher voltage bus applications.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2574 family of simple-switcher regulators. These devices are widely used for general-purpose DC-DC conversion. The LM2574 series provides a cost-effective solution for reducing higher input voltages to lower stable output levels efficiently.