Integrated Circuits (ICs)

MIC4574BN

Obsolete

Microchip Technology

SWITCHING REGULATOR, VOLTAGE-MODE, 1.8A, 220KHZ SWITCHING FREQ-MAX, BICMOS, PDIP8, DIP-8

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Integrated Circuits (ICs)

MIC4574BN

Obsolete

Microchip Technology

SWITCHING REGULATOR, VOLTAGE-MODE, 1.8A, 220KHZ SWITCHING FREQ-MAX, BICMOS, PDIP8, DIP-8

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	MIC4574BN

Current - Output	500 mA
Frequency - Switching	200 kHz
Function	Step-Down
Mounting Type	Through Hole
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	0.3 in
Package / Case	8-DIP
Package / Case	7.62 mm
Supplier Device Package	8-PDIP
Synchronous Rectifier	False
Topology	Buck
Voltage - Input (Max) [Max]	24 V
Voltage - Input (Min) [Min]	4 V
Voltage - Output (Max) [Max]	20 V
Voltage - Output (Min/Fixed)	1.23 V

MIC4574 Series

200kHz 0.5A Step-down Regulator

Part	Output Configuration	Voltage - Output (Min/Fixed)	Output Type	Number of Outputs	Voltage - Input (Max) [Max]	Topology	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output	Function	Package / Case	Package / Case	Package / Case	Frequency - Switching	Voltage - Input (Min) [Min]	Mounting Type	Supplier Device Package	Output Type	Voltage - Output (Max) [Max]
Microchip Technology MIC4574-3.3YN	Positive	3.3 V	1.81 mOhm	1	24 V	Buck	85 °C	-40 °C	500 mA	Step-Down	0.3 in	8-DIP	7.62 mm	200 kHz	4 V	Through Hole	8-PDIP
Microchip Technology MIC4574-5.0BN	Positive	5 V	1.81 mOhm	1	24 V	Buck	85 °C	-40 °C	500 mA	Step-Down	0.3 in	8-DIP	7.62 mm	200 kHz	4 V	Through Hole	8-PDIP
Microchip Technology MIC4574YN	Positive	1.23 V		1	24 V	Buck	85 °C	-40 °C	500 mA	Step-Down	0.3 in	8-DIP	7.62 mm	200 kHz	4 V	Through Hole	8-PDIP	Adjustable	20 V
Microchip Technology MIC4574BN	Positive	1.23 V		1	24 V	Buck	85 °C	-40 °C	500 mA	Step-Down	0.3 in	8-DIP	7.62 mm	200 kHz	4 V	Through Hole	8-PDIP	Adjustable	20 V
Microchip Technology MIC4574-3.3BN	Positive	3.3 V	1.81 mOhm	1	24 V	Buck	85 °C	-40 °C	500 mA	Step-Down	0.3 in	8-DIP	7.62 mm	200 kHz	4 V	Through Hole	8-PDIP

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Description

General part information

MIC4574 Series

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

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

The feedback voltage is guaranteed to±2% tolerance for adjustable versions, and the output voltage is guaranteed to ±3% for fixed versions, within specified voltages and load conditions. The oscillator frequency is guaranteed to ±10%.

Documents

Technical documentation and resources