Specification	MIC2545A-2YN

Current - Output (Max) [Max]	3 A
Fault Protection	Reverse Current, Over Temperature, Current Limiting (Adjustable)
Features	Slew Rate Controlled, Status Flag
Input Type	Non-Inverting
Interface	On/Off
Mounting Type	Through Hole
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	High Side
Output Type	N-Channel
Package / Case	0.3 in
Package / Case	8-DIP
Package / Case	7.62 mm
Ratio - Input:Output [custom]	1:1
Rds On (Typ)	35 mOhm
Supplier Device Package	8-DIP
Switch Type	USB Switch
Voltage - Load [Max]	5.5 V
Voltage - Load [Min]	2.7 V
Voltage - Supply (Vcc/Vdd)	False

MIC2545A Series

Adjustable 3A Single High-Side Current Limit Power Switch

Part	Ratio - Input:Output [custom]	Mounting Type	Output Configuration	Input Type	Interface	Operating Temperature [Max]	Operating Temperature [Min]	Fault Protection	Rds On (Typ)	Switch Type	Output Type	Current - Output (Max) [Max]	Voltage - Load [Max]	Voltage - Load [Min]	Features	Supplier Device Package	Package / Case	Package / Case	Package / Case	Number of Outputs	Package / Case [y]	Package / Case [x]	Package / Case [custom]	Package / Case [custom]
Microchip Technology MIC2545A-1YN	1:1	Through Hole	High Side	Non-Inverting	On/Off	85 °C	-40 °C	Current Limiting (Adjustable) Over Temperature Reverse Current	35 mOhm	USB Switch	N-Channel	3 A	5.5 V	2.7 V	Slew Rate Controlled Status Flag	8-DIP	0.3 in	8-DIP	7.62 mm	1
Microchip Technology MIC2545A-2BM-TR	1:1	Surface Mount	High Side	Non-Inverting	On/Off	85 °C	-40 °C	Current Limiting (Adjustable) Over Temperature Reverse Current	35 mOhm	USB Switch	N-Channel	3 A	5.5 V	2.7 V	Slew Rate Controlled Status Flag	8-SOIC		8-SOIC		1	3.9 mm	0.154 in
Microchip Technology MIC2545A-1BTS	1:1	Surface Mount	High Side	Non-Inverting	On/Off	85 °C	-40 °C	Current Limiting (Adjustable) Over Temperature Reverse Current	35 mOhm	USB Switch	N-Channel	3 A	5.5 V	2.7 V	Slew Rate Controlled Status Flag	14-TSSOP		14-TSSOP		1			0.173 "	4.4 mm
Microchip Technology MIC2545A-2YN	1:1	Through Hole	High Side	Non-Inverting	On/Off	85 °C	-40 °C	Current Limiting (Adjustable) Over Temperature Reverse Current	35 mOhm	USB Switch	N-Channel	3 A	5.5 V	2.7 V	Slew Rate Controlled Status Flag	8-DIP	0.3 in	8-DIP	7.62 mm	1
Microchip Technology MIC2545A-1BM-TR	1:1	Surface Mount	High Side	Non-Inverting	On/Off	85 °C	-40 °C	Current Limiting (Adjustable) Over Temperature Reverse Current	35 mOhm	USB Switch	N-Channel	3 A	5.5 V	2.7 V	Slew Rate Controlled Status Flag	8-SOIC		8-SOIC		1	3.9 mm	0.154 in
Microchip Technology MIC2545A-1YM-TR	1:1	Surface Mount	High Side	Non-Inverting	On/Off	85 °C	-40 °C	Current Limiting (Adjustable) Over Temperature Reverse Current	35 mOhm	USB Switch	N-Channel	3 A	5.5 V	2.7 V	Slew Rate Controlled Status Flag	8-SOIC		8-SOIC		1	3.9 mm	0.154 in
Microchip Technology MIC2545A-2BN	1:1	Through Hole	High Side	Non-Inverting	On/Off	85 °C	-40 °C	Current Limiting (Adjustable) Over Temperature Reverse Current	35 mOhm	USB Switch	N-Channel	3 A	5.5 V	2.7 V	Slew Rate Controlled Status Flag	8-PDIP	0.3 in	8-DIP	7.62 mm	1
Microchip Technology MIC2545A-2YTS-TR	1:1	Surface Mount	High Side	Non-Inverting	On/Off	85 °C	-40 °C	Current Limiting (Adjustable) Over Temperature Reverse Current	35 mOhm	USB Switch	N-Channel	3 A	5.5 V	2.7 V	Slew Rate Controlled Status Flag	14-TSSOP		14-TSSOP		1			0.173 "	4.4 mm
Microchip Technology MIC2545A-2BTS-TR	1:1	Surface Mount	High Side	Non-Inverting	On/Off	85 °C	-40 °C	Current Limiting (Adjustable) Over Temperature Reverse Current	35 mOhm	USB Switch	N-Channel	3 A	5.5 V	2.7 V	Slew Rate Controlled Status Flag	14-TSSOP		14-TSSOP		1			0.173 "	4.4 mm
Microchip Technology MIC2545A-1BTS-TR	1:1	Surface Mount	High Side	Non-Inverting	On/Off	85 °C	-40 °C	Current Limiting (Adjustable) Over Temperature Reverse Current	35 mOhm	USB Switch	N-Channel	3 A	5.5 V	2.7 V	Slew Rate Controlled Status Flag	14-TSSOP		14-TSSOP		1			0.173 "	4.4 mm

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 6.07
		25	$ 5.06
		100	$ 4.60
Microchip Direct	TUBE	1	$ 6.07
		25	$ 5.06
		100	$ 4.60
		1000	$ 3.83
		5000	$ 3.53
		10000	$ 3.28
Newark	Each	100	$ 4.74

Description

General part information

MIC2545A Series

The MIC2545A and MIC2549A are integrated high-side power switches optimized for low-loss DC power switching and other power-management applications, including advanced configuration and power interface (ACPI). The MIC2545A/49A is a cost-effective, highly-integrated solution that requires few external components to satisfy USB and ACPI requirements.

Load current management features include a precision, resistor-programmable output current-limit and a soft-start circuit, which minimizes inrush current when the switch is enabled. Thermal shutdown, along with adjustable current-limit, protects the switch and the attached device.

The MIC2545A/49A's open-drain flag output is used to indicate current-limiting or thermal shutdown to a local controller. The MIC2549A has an additional internal latch which turns the output off upon thermal shutdown, providing robust fault control. The enable signal is compatible with both 3V and 5V logic, and is also used as the thermal shutdown latch reset for the MIC2549A.

Documents

Technical documentation and resources

Product Change Notice EN

Datasheet

Supporting Extra LEDs with the KS8695X 5-Port Integrated High Performance Gateway

Application Notes

Programmable Current-Limit High-Side Switch

Data Sheets

Liquid Crystal Display Power Supplies

Application Notes