MIC2537 Series

Quad USB High-Side 100mA Current Limiting Power Switch

Catalog

Quad USB High-Side 100mA Current Limiting Power Switch

Part	Interface	Number of Outputs	Switch Type	Output Type	Output Configuration	Ratio - Input:Output	Voltage - Load [Min]	Voltage - Load [Max]	Current - Output (Max) [Max]	Mounting Type	Features	Fault Protection	Supplier Device Package	Input Type	Rds On (Typ)	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Package / Case [x]	Package / Case [y]
Microchip Technology MIC2537-1YM	On/Off	4	USB Switch	N-Channel	High Side	1:4	3 V	5.5 V	100 mA	Surface Mount	Slew Rate Controlled Status Flag	Current Limiting (Fixed) Over Temperature	16-SOIC	Non-Inverting	425 mOhm	85 °C	-40 °C	16-SOIC	0.154 in	3.9 mm
Microchip Technology MIC2537-1BM	On/Off	4	USB Switch	N-Channel	High Side	1:4	3 V	5.5 V	150 mA	Surface Mount	Slew Rate Controlled Status Flag	Current Limiting (Fixed) Over Temperature	16-SOIC	Non-Inverting	425 mOhm	85 °C	-40 °C	16-SOIC	0.154 in	3.9 mm
Microchip Technology MIC2537-2BM-TR	On/Off	4	USB Switch	N-Channel	High Side	1:4	3 V	5.5 V	150 mA	Surface Mount	Slew Rate Controlled Status Flag	Current Limiting (Fixed) Over Temperature	16-SOIC	Non-Inverting	425 mOhm	85 °C	-40 °C	16-SOIC	0.154 in	3.9 mm
Microchip Technology MIC2537-1BM-TR	On/Off	4	USB Switch	N-Channel	High Side	1:4	3 V	5.5 V	150 mA	Surface Mount	Slew Rate Controlled Status Flag	Current Limiting (Fixed) Over Temperature	16-SOIC	Non-Inverting	425 mOhm	85 °C	-40 °C	16-SOIC	0.154 in	3.9 mm
Microchip Technology MIC2537-2BM	On/Off	4	USB Switch	N-Channel	High Side	1:4	3 V	5.5 V	150 mA	Surface Mount	Slew Rate Controlled Status Flag	Current Limiting (Fixed) Over Temperature	16-SOIC	Non-Inverting	425 mOhm	85 °C	-40 °C	16-SOIC	0.154 in	3.9 mm
Microchip Technology MIC2537-2YM	On/Off	4	USB Switch	N-Channel	High Side	1:4	3 V	5.5 V	100 mA	Surface Mount	Slew Rate Controlled Status Flag	Current Limiting (Fixed) Over Temperature	16-SOIC	Non-Inverting	425 mOhm	85 °C	-40 °C	16-SOIC	0.154 in	3.9 mm
Microchip Technology MIC2537-1YM-TR	On/Off	4	USB Switch	N-Channel	High Side	1:4	3 V	5.5 V	100 mA	Surface Mount	Slew Rate Controlled Status Flag	Current Limiting (Fixed) Over Temperature	16-SOIC	Non-Inverting	425 mOhm	85 °C	-40 °C	16-SOIC	0.154 in	3.9 mm
Microchip Technology MIC2537-2YM-TR	On/Off	4	USB Switch	N-Channel	High Side	1:4	3 V	5.5 V	100 mA	Surface Mount	Slew Rate Controlled Status Flag	Current Limiting (Fixed) Over Temperature	16-SOIC	Non-Inverting	425 mOhm	85 °C	-40 °C	16-SOIC	0.154 in	3.9 mm

Catalog

Quad USB High-Side 100mA Current Limiting Power Switch

Key Features

• + Compliant to USB specifications

• + 3V to 5.5V input

• + 100mA minimum continuous load current per port

• + 425mO typical on-resistance

• + < 400mA current limit

• + Individual open-drain fault flag leads

• + 3V/5V-compatible enable inputs

• + Active-high (-1) and active-low (-2) versions

• + 100µA max. on-state supply current

• + <1µA typical off-state supply current

• + 16-lead SOP package

• + -40°C to 85°C operation

• + UL recognized

Description

The MIC2537 is a cost-effective high-side power switch with four independently controlled channels, optimized for buspowered Universal Serial Bus (USB) applications. Few external components are necessary to satisfy USB requirements. The MIC2537 satisfies the following USB requirements: each switch channel supplies up to 100mA as required by USB bus-powered downstream devices; fault current is limited to typically 250mA, well below the UL 25VA safety requirements; and a flag output is available to indicate fault conditions to the local USB controller. Soft start eliminates the momentary voltage drop on the upstream port that may occur when the switch is enabled in bus-powered applications. Additional features include thermal shutdown to prevent catastrophic switch failure from high-current loads and 3.3V and 5V logic compatible enable inputs. The MIC2537 is available in active-high and active-low versions in a 16-lead SOP package.