MIC3172BN

Obsolete

Microchip Technology

IC REG MULT CONFIG 1.25A 8DIP

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MIC3172BN

Obsolete

Microchip Technology

IC REG MULT CONFIG 1.25A 8DIP

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Alpha

Description Specifications Series Pricing CAD Documents

Description

General part information

MIC3172 Series

The MIC2172 and MIC3172 are complete 100kHz SMPS current-mode controllers with internal 65V 1.25A power switches. The MIC2172 features external frequency synchronization or frequency adjustment, while the MIC3172 features an enable/shutdown control input.

Although primarily intended for voltage step-up applications, the floating switch architecture of the MIC2172/3172 makes it practical for step-down, inverting, and Cuk configurations as well as isolated topologies.

Operating from 3V to 40V, the MIC2172/3172 draws only 7mA of quiescent current making it attractive for battery operated supplies.

Technical Specifications

Parameters and characteristics for this part

Specification	MIC3172BN

Current - Output	1.25 A
Frequency - Switching	100 kHz
Function	Step-Up/Step-Down, Step-Down, Step-Up
Mounting Type	Through Hole
Number of Outputs	1
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive or Negative, Positive, Negative
Package Length	0.3 in
Package Name	8-PDIP, 8-DIP
Package Width	7.62 mm
Synchronous Rectifier	No
Topology	Buck, Flyback, Forward Converter, Cuk, Boost
Voltage - Input (Max)	40 V
Voltage - Input (Min)	3 V

MIC3172 Series

1.25A 100kHz Switching Regulator

Part	Voltage - Input (Min)	Number of Outputs	Output Configuration	Frequency - Switching	Package Name	Package Length	Package Width	Topology	Current - Output	Function	Synchronous Rectifier	Mounting Type	Voltage - Input (Max)	Operating Temperature (Max)	Operating Temperature (Min)
Microchip Technology MIC3172BN	3 V	1	Negative Positive Positive or Negative	100 kHz	8-DIP 8-PDIP	0.3 in	7.62 mm	Boost Buck Cuk Flyback Forward Converter	1.25 A	Step-Down Step-Up Step-Up/Step-Down	No	Through Hole	40 V	85 °C	-40 °C
Microchip Technology MIC3172BM-TR	3 V	1	Negative Positive Positive or Negative	100 kHz	8-SOIC	0.154 in	3.9 mm	Boost Buck Cuk Flyback Forward Converter	1.25 A	Step-Down Step-Up Step-Up/Step-Down	No	Surface Mount	40 V	85 °C	-40 °C
Microchip Technology MIC3172YM	3 V	1	Negative Positive Positive or Negative	100 kHz	8-SOIC	0.154 in	3.9 mm	Boost Buck Cuk Flyback Forward Converter	1.25 A	Step-Down Step-Up Step-Up/Step-Down	No	Surface Mount	40 V	85 °C	-40 °C
Microchip Technology MIC3172YN	3 V	1	Negative Positive Positive or Negative	100 kHz	8-DIP 8-PDIP	0.3 in	7.62 mm	Boost Buck Cuk Flyback Forward Converter	1.25 A	Step-Down Step-Up Step-Up/Step-Down	No	Through Hole	40 V	85 °C	-40 °C
Microchip Technology MIC3172YM-TR	3 V	1	Negative Positive Positive or Negative	100 kHz	8-SOIC	0.154 in	3.9 mm	Boost Buck Cuk Flyback Forward Converter	1.25 A	Step-Down Step-Up Step-Up/Step-Down	No	Surface Mount	40 V	85 °C	-40 °C

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

MIC3172BN | Datasheet