Integrated Circuits (ICs)

MIC3172YM-TR

Active

Microchip Technology

1.25A 100KHZ SWITCHING REGULATOR 8 SOIC 3.90MM(.150IN) T/R ROHS COMPLIANT: YES

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsDatasheet Product Change Notice EN

Integrated Circuits (ICs)

MIC3172YM-TR

Active

Microchip Technology

1.25A 100KHZ SWITCHING REGULATOR 8 SOIC 3.90MM(.150IN) T/R ROHS COMPLIANT: YES

Deep-Dive with AI

DocumentsDatasheet Product Change Notice EN

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	MIC3172YM-TR

Current - Output	1.25 A
Frequency - Switching	100 kHz
Function	Step-Up, Step-Up/Step-Down, Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive or Negative
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Supplier Device Package	8-SOIC
Synchronous Rectifier	False
Topology	Flyback, Cuk, Boost, Forward Converter, Buck
Voltage - Input (Min) [Min]	3 V

MIC3172 Series

1.25A 100kHz Switching Regulator

Part	Number of Outputs	Supplier Device Package	Current - Output	Function	Output Configuration	Package / Case	Package / Case	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Input (Min) [Min]	Mounting Type	Topology	Frequency - Switching	Package / Case [y]	Package / Case [x]
Microchip Technology MIC3172BN	1	8-PDIP	1.25 A	Step-Down Step-Up Step-Up/Step-Down	Positive or Negative	0.3 in	8-DIP	7.62 mm	85 °C	-40 °C	3 V	Through Hole	Boost Buck Cuk Flyback Forward Converter	100 kHz
Microchip Technology MIC3172YM	1	8-SOIC	1.25 A	Step-Down Step-Up Step-Up/Step-Down	Positive or Negative		8-SOIC		85 °C	-40 °C	3 V	Surface Mount	Boost Buck Cuk Flyback Forward Converter	100 kHz	3.9 mm	0.154 in
Microchip Technology MIC3172YM-TR	1	8-SOIC	1.25 A	Step-Down Step-Up Step-Up/Step-Down	Positive or Negative		8-SOIC		85 °C	-40 °C	3 V	Surface Mount	Boost Buck Cuk Flyback Forward Converter	100 kHz	3.9 mm	0.154 in

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	2500	$ 1.59
Microchip Direct	T/R	1	$ 2.10
		25	$ 1.75
		100	$ 1.59
		1000	$ 1.53
		5000	$ 1.52
		10000	$ 1.50
Newark	Each (Supplied on Full Reel)	100	$ 1.64

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.