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Manufacturer Part #

MIC4574YN

MIC4574 Series 24 V 200 kHz 0.5 A Through Hole Simple Buck Regulator - DIP-8

Mfr. Name: Microchip
Standard Pkg:
Product Variant Information section
Date Code:
Product Specification Section
Technical Attributes
Attributes Table
Topology: Buck
Input Voltage: 4V to 24V
Output Current-Max: 0.5A
Switching Frequency-Max: 200kHz
Package Style:  DIP-8
Mounting Method: Through Hole
Features & Applications

The MIC4574YN is a series of easy to use fixed and adjustable BiCMOS step-down (buck) switch-mode voltage regulators. The 200 kHz MIC4574 duplicates the pinout and function of the 52 kHz LM2574. The higher switching frequency may allow up to a 2:1 reduction in output filter inductor size.

The MIC4574 is available in 3.3 V, and 5 V fixed output versions or a 1.23 V to 20 V adjustable output version. Both versions are capable of driving a 0.5  A load with excellent line and load regulation.

Features:

  • Fixed 200kHz operation
  • 3.3 V, 5  V, and adjustable output versions Voltage over specified line and load conditions:
  • Fixed version: ±3% max. output voltage
  • Adjustable version: ±2% max. feedback voltage
  • Guaranteed 0.5 A switch currentWide 4 V to 24 V input voltage range
  • Wide 1.23 V to 20 V output voltage range
  • Requires minimum external components
  • < 200 μA typical shutdown mode
  • 75% efficiency (adjustable version > 75% typ.)
  • Thermal shutdown
  • Overcurrent protection
  • 100% electrical thermal limit burn-in

Applications:

  • Simple high-efficiency step-down (buck) regulator
  • Efficient preregulator for linear regulators
  • On-card switching regulators
  • Positive-to-negative converter (inverting buck-boost)
  • Isolated flyback converter using minimum external components
  • Negative boost converter
Pricing Section
Stock:
0
Minimum Order:
500
Multiple Of:
50
On Order:
0
Factory Stock:Factory Stock:
0
Factory Lead Time:
12 Weeks
Total
$600.00
USD
Quantity
Web Price
50
$1.32
100+
$1.20
Product Variant Information section