MIC4684-3.3BM

Obsolete

Microchip Technology

IC REG BUCK 3.3V 2A 8SOIC

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MIC4684-3.3BM

Obsolete

Microchip Technology

IC REG BUCK 3.3V 2A 8SOIC

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Description Specifications Series Pricing CAD Documents

Description

General part information

MIC4684 Series

The MIC4684 is a high-efficiency 200kHz stepdown (buck) switching regulator. Power conversion efficiency of above 85% is easily obtainable for a wide variety of applications. The MIC4684 achieves 2A of continuous current in an 8-lead SO (small outline) package at 60°C ambient temperature.

High efficiency is maintained over a wide output current range by utilizing a boost capacitor to increase the voltage available to saturate the internal power switch. As a result of this high efficiency, no external heat sink is required. The MIC4684, housed in an SO-8, can replace larger TO-220 and TO-263 packages in many applications.

The MIC4684 allows for a high degree of safety. It has a wide input voltage range of 4V to 30V (34V transient), allowing it to be used in applications where input voltage transients may be present. Built-in safety features include over-current protection, frequency-foldback short-circuit protection, and thermal shutdown.

Technical Specifications

Parameters and characteristics for this part

Specification	MIC4684-3.3BM

Current - Output	2 A
Frequency - Switching	200 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Fixed
Package Length	0.154 in
Package Name	8-SOIC
Package Width	3.9 mm
Synchronous Rectifier	No
Topology	Buck
Voltage - Input (Max)	30 V p-p
Voltage - Input (Min)	4 V
Voltage - Output (Min/Fixed)	3.3 V

MIC4684 Series

200kHz 2A SuperSwitcher™ Buck Regulator

Part	Operating Temperature (Max)	Operating Temperature (Min)	Current - Output	Synchronous Rectifier	Number of Outputs	Package Name	Function	Voltage - Output (Min/Fixed)	Mounting Type	Output Configuration	Frequency - Switching	Package Length	Package Width	Voltage - Input (Min)	Voltage - Input (Max)	Topology	Output Type	Voltage - Output (Max)
Microchip Technology MIC4684-3.3BM	85 °C	-40 °C	2 A	No	1	8-SOIC	Step-Down	3.3 V	Surface Mount	Positive	200 kHz	0.154 in	3.9 mm	4 V	30 V p-p	Buck	Fixed
Microchip Technology MIC4684YM	85 °C	-40 °C	2 A	No	1	8-SOIC	Step-Down	1.235 V	Surface Mount	Positive	200 kHz	0.154 in	3.9 mm	4 V	30 V p-p	Buck	Adjustable	28.2 V
Microchip Technology MIC4684YM-TR	85 °C	-40 °C	2 A	No	1	8-SOIC	Step-Down	1.235 V	Surface Mount	Positive	200 kHz	0.154 in	3.9 mm	4 V	30 V p-p	Buck	Adjustable	28.2 V
Microchip Technology MIC4684BM-TR	85 °C	-40 °C	2 A	No	1	8-SOIC	Step-Down	1.235 V	Surface Mount	Positive	200 kHz	0.154 in	3.9 mm	4 V	30 V p-p	Buck	Adjustable	28.2 V
Microchip Technology MIC4684-5.0BM TR	85 °C	-40 °C	2 A	No	1	8-SOIC	Step-Down	5 V	Surface Mount	Positive	200 kHz	0.154 in	3.9 mm	4 V	30 V p-p	Buck	Fixed
Microchip Technology MIC4684-3.3BM TR	85 °C	-40 °C	2 A	No	1	8-SOIC	Step-Down	3.3 V	Surface Mount	Positive	200 kHz	0.154 in	3.9 mm	4 V	30 V p-p	Buck	Fixed

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

MIC4684-3.3BM | Datasheet