LM2574HVN-3.3/NOPB

Description：IC REG BUCK 3.3V 500MA 8PDIP
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube

SKU:71b75b857869 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM2574HVN-3.3/NOPB is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG BUCK 3.3V 500MA 8PDIP. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2574HVN-3.3/NOPB

Description：IC REG BUCK 3.3V 500MA 8PDIP
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：4V
Voltage - Input (Max)：60V
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 LM2574HVN-3.3/NOPB

LM2574HVN-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2574HVN-3.3/NOPB is a step-down switching voltage regulator from the Texas Instruments SIMPLE SWITCHER family, designed for high-voltage input applications. It provides a fixed 3.3 V output with a maximum load current of 0.5 A. The device operates within an input voltage range of 4 V to 60 V and features a typical switching frequency of 58 kHz. It utilizes a PDIP-8 through-hole package and supports an operating temperature range from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated monolithic power switch rated for 60 V input
Built-in thermal shutdown and current limit protection
Fixed 3.3 V output option eliminates external feedback resistors

Voltage Regulators - DC DC Switching Regulators Applications

Distributed power supply architectures requiring high input voltage tolerance
Pre-regulation stages for downstream linear regulators
Battery-powered systems with wide input voltage variations

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'N' confirms the PDIP-8 through-hole package variant. Confirm 'NOPB' indicates lead-free and RoHS compliance status. Ensure the design accommodates the specific thermal requirements of the DIP-8 package for continuous operation at elevated temperatures.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required with inputs up to 60 V. Choose the HVN variant over standard versions for higher voltage headroom. Consider the PDIP-8 package constraints regarding PCB space and thermal dissipation compared to surface-mount alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2574HV series, which extends the standard LM2574 capabilities to handle higher input voltages. It shares functional compatibility with other SIMPLE SWITCHER regulators but is distinguished by its high-voltage input rating and through-hole packaging configuration.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2574HVN-5.0/NOPB offers identical electrical characteristics with a 5.0 V output. LM2574M-3.3/NOPB provides the same functionality in a SOIC-14 surface-mount package.

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Return and Refund

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