The MIC94040/1/2/3 is a family of high-side load switches designed to operate from 1.7V to 5.5V input voltage. The load switch pass element is an internal 28mΩ RDSON P-channel MOSFET which enables the device to support up to 3A of continuous current. The MIC94040 and MIC94041 feature rapid turn on, while the MIC94042 and MIC94043 provide a slew rate controlled softstart turn-on of 100μs. The soft-start feature is provided to prevent an in-rush current event from pulling down the input supply voltage.

28mΩ RDSON
3A continuous operating current
1.7V to 5.5V input voltage range
Internal level shift for CMOS/TTL control logic
Ultra low quiescent current
Micro-power shutdown current
Soft-Start: MIC94042, MIC94043
Load discharge circuit: MIC94041, MIC94043
Ultra fast turn off time
Junction operating temperature from -40°C to +125°C

Units	Per unit	Per Pack*
10 - 20	£0.903	£9.03
30 - 90	£0.859	£8.59
100 +	£0.774	£7.74

Select all	Attribute	Value
	Brand	Microchip
	Power Switch Topology	High Side
	Power Switch Type	Load
	Switch On Resistance	55mΩ
	Number of Channels	1
	Maximum Operating Supply Voltage	5.5 V
	Maximum Operating Current	3 (Continuous)A
	Mounting Type	Surface Mount
	Package Type	MLF
	Pin Count	4
	Maximum Operating Temperature	+125 °C
	Minimum Operating Temperature	-40 °C
	Dimensions	1.2 x 1.2 x 0.7mm
	Series	MIC94043

	Select all
	Brand Microchip
	Power Switch Topology High Side
	Power Switch Type Load
	Switch On Resistance 55mΩ
	Number of Channels 1
	Maximum Operating Supply Voltage 5.5 V
	Maximum Operating Current 3 (Continuous)A
	Mounting Type Surface Mount
	Package Type MLF
	Pin Count 4
	Maximum Operating Temperature +125 °C
	Minimum Operating Temperature -40 °C
	Dimensions 1.2 x 1.2 x 0.7mm
	Series MIC94043

Microchip MIC94043YFL-TR, 1High Side, Load Power Switch IC 4-Pin, MLF

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