MIC4574BN

Description：IC REG BUCK ADJ 500MA 8PDIP
Series：-
Mfr：Microchip Technology
Package：Bulk

SKU:db13a8e32516 Category: Voltage Regulators - DC DC Switching Regulators Brand: Microchip Technology

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Product introduction

MIC4574BN is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Microchip Technology. Its product description is IC REG BUCK ADJ 500MA 8PDIP. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for MIC4574BN

Description：IC REG BUCK ADJ 500MA 8PDIP
Series：-
Mfr：Microchip Technology
Package：Bulk
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：4V
Voltage - Input (Max)：24V
Voltage - Output (Min/Fixed)：1.23V
Voltage - Output (Max)：20V
Current - Output：500mA
Frequency - Switching：200kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 85°C (TA)
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 MIC4574BN

MIC4574BN

Voltage Regulators - DC DC Switching Regulators Overview

The MIC4574BN is a BiCMOS step-down (buck) switch-mode voltage regulator manufactured by Microchip Technology. It operates at a fixed switching frequency of 200kHz and provides a guaranteed output current of 0.5A. The device accepts an input voltage range of 4V to 24V and offers an adjustable output voltage range from 1.23V to 20V. It is housed in an 8-pin PDIP package with through-hole mounting. The regulator features internal frequency compensation, cycle-by-cycle current limiting, and thermal shutdown protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Fixed 200kHz switching frequency operation for simplified external component selection
Integrated thermal shutdown and overcurrent protection for fault condition safety
Low standby current consumption in shutdown mode

Voltage Regulators - DC DC Switching Regulators Applications

Simple high-efficiency step-down (buck) regulator circuits
Battery-powered systems requiring efficient voltage conversion
Industrial control power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'BN' against official Microchip documentation to confirm the exact package type and temperature rating. Ensure compatibility with required PCB footprint dimensions for the designated package style. Confirm RoHS compliance status as indicated in the latest datasheet revision before finalizing procurement specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a simple, low-component-count buck regulator is needed for currents up to 0.5A. The fixed 200kHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the 4V to 24V input range suitability for the specific power source. Verify that the thermal performance meets system requirements under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

The MIC4574 series includes fixed 3.3V and 5V versions alongside the adjustable variant. It serves as a modern replacement for older regulators like the LM2574, offering higher efficiency and reduced external component values. The series is designed for ease of use with minimal external parts required for stable operation.