USB Power Switches

USB power switches are power management devices used to charge electronic devices on USB ports and hubs on computers, docking stations, handheld devices and automotive devices. 


How do USB power switches work?

They work by monitoring the current on a device and latch a switch off if the output current is shorted. They often have an auto reset feature which reactivates the switch once the short circuit is removed. They work in the same way as hot swap controllers, which allow circuit boards and electronic cards to be inserted into equipment, removing the need to power down during use.


Features of USB power switches

Most USB power switches have multiple safety features. For instance, built in thermal-overload protection limits junction temperature and dissipation of power. 


The internal circuity is limited to an accurate figure to protect the input supply against short circuit conditions as well as overload. They're also fitted with fault signals that notify the microprocessor whenever there's a current-limit, under voltage lockout (UVLO), short-circuit fault or thermal overload.


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Description Price Switch Type Number of Outputs Switch On Resistance Maximum Power Dissipation Package Type Pin Count Current Limit Dimensions Length Width Height Maximum Input Voltage Maximum Operating Temperature Automotive Standard
RS Stock No. 911-2723
Mfr. Part No.MIC2005A-1YM6-TR
BrandMicrochip
$0.415
Each (In a Pack of 25)
units
High Side, USB Power Distribution 1 275mΩ Internally Limited SOT-23 6 0.9A 2.9 x 1.6 x 0.9mm 2.9mm 1.6mm 0.9mm 5.5 V +85 °C -
RS Stock No. 165-4312
Mfr. Part No.MIC2005A-1YM6-TR
BrandMicrochip
$0.352
Each (On a Reel of 3000)
units
High Side, USB Power Distribution 1 275mΩ Internally Limited SOT-23 6 0.9A 2.9 x 1.6 x 0.9mm 2.9mm 1.6mm 0.9mm 5.5 V +85 °C -
RS Stock No. 841-7529
Mfr. Part No.UCS1003-2-BP
BrandMicrochip
$2.74
Each (In a Pack of 5)
units
- 2 55mΩ 2.19 W QFN 20 3000mA 4.1 x 4.1 x 0.9mm 4.1mm 4.1mm 0.9mm 5.5 V +125 °C -
RS Stock No. 177-0562
Mfr. Part No.MIC2075-1YMM
BrandMicrochip
$1.265
Each (In a Pack of 20)
units
USB High Side Power 1 160mΩ - MSOP 8 0.85A 3 x 3 x 0.92mm 3mm 3mm 0.92mm 5.5 V +85 °C -
RS Stock No. 910-1773
Mfr. Part No.MIC2505-1YM
BrandMicrochip
$3.03
Each (In a Pack of 5)
units
High Side, USB Power Distribution - - Internally Limited SOIC 8 4A 4.93 x 3.94 x 1.48mm 4.93mm 3.94mm 1.48mm 7.5 V +85 °C -
RS Stock No. 910-1509
Mfr. Part No.MIC2026-1YM
BrandMicrochip
$1.53
Each (In a Pack of 10)
units
High Side, USB Power Distribution 4 90mΩ Internally Limited SOIC 8 0.9A 5 x 3.99 x 1.63mm 5mm 3.99mm 1.63mm 5.5 V +85 °C -
RS Stock No. 177-0314
Mfr. Part No.MIC2025-1YM
BrandMicrochip
$1.05
Each (In a Tube of 95)
units
USB High Side Power 1 160mΩ - SOIC 8 0.85A 4.93 x 3.94 x 1.48mm 4.93mm 3.94mm 1.48mm 5.5 V +85 °C -
RS Stock No. 165-4275
Mfr. Part No.MIC2026-1YM-TR
BrandMicrochip
$1.22
Each (On a Reel of 2500)
units
High Side, USB Power Distribution 4 90mΩ Internally Limited SOIC 8 0.9A 5 x 3.99 x 1.63mm 5mm 3.99mm 1.63mm 5.5 V +85 °C -
RS Stock No. 177-0639
Mfr. Part No.MIC2075-1YM
BrandMicrochip
$1.48
Each (In a Pack of 10)
units
USB High Side Power 1 160mΩ - SOIC 8 0.85A 4.93 x 3.94 x 1.48mm 4.93mm 3.94mm 1.48mm 5.5 V +85 °C -
RS Stock No. 165-4225
Mfr. Part No.MIC2005A-1YM5-TR
BrandMicrochip
$0.352
Each (On a Reel of 3000)
units
High Side 1 275mΩ Internally Limited SOT-23 5 0.5A 2.9 x 1.6 x 1.3mm 2.9mm 1.6mm 1.3mm 5.5 V +85 °C -
RS Stock No. 910-1691
Mfr. Part No.MIC2026-2YM-TR
BrandMicrochip
$1.53
Each (In a Pack of 10)
units
High Side 2 170mΩ Internally Limited SOIC 8 - 4.93 x 3.94 x 1.48mm 4.93mm 3.94mm 1.48mm 5.5 V +85 °C -
RS Stock No. 145-9131
Mfr. Part No.MIC2076-2YM
BrandMicrochip
$1.452
Each (In a Tube of 95)
units
High Side, USB Power Distribution 4 90mΩ Internally Limited SOIC 8 0.9A 5 x 3.99 x 1.63mm 5mm 3.99mm 1.63mm 5.5 V +85 °C -
RS Stock No. 910-1809
Mfr. Part No.MIC2005A-1YM5-TR
BrandMicrochip
$0.352
Each (In a Pack of 25)
units
High Side 1 275mΩ Internally Limited SOT-23 5 0.5A 2.9 x 1.6 x 1.3mm 2.9mm 1.6mm 1.3mm 5.5 V +85 °C -
RS Stock No. 910-1688
Mfr. Part No.MIC2009YM6-TR
BrandMicrochip
$1.47
Each (In a Pack of 5)
units
High Side 1 275mΩ Internally Limited SOT-23 6 0.2 → 2A 2.9 x 1.6 x 1.3mm 2.9mm 1.6mm 1.3mm 5.5 V +85 °C -
RS Stock No. 910-1506
Mfr. Part No.MIC2026-2YM
BrandMicrochip
$1.53
Each (In a Pack of 10)
units
High Side, USB Power Distribution 4 90mΩ Internally Limited SOIC 8 0.9A 5 x 3.99 x 1.63mm 5mm 3.99mm 1.63mm 5.5 V +85 °C -
RS Stock No. 177-0721
Mfr. Part No.MIC2025-1YM
BrandMicrochip
$1.26
Each (In a Pack of 10)
units
USB High Side Power 1 160mΩ - SOIC 8 0.85A 4.93 x 3.94 x 1.48mm 4.93mm 3.94mm 1.48mm 5.5 V +85 °C -
RS Stock No. 177-0778
Mfr. Part No.MIC2027-1YM
BrandMicrochip
$3.77
Each (In a Pack of 5)
units
USB High Side Power 4 180mΩ - SOIC 16 1A 9.93 x 3.94 x 1.48mm 9.93mm 3.94mm 1.48mm 5.5 V +85 °C -
RS Stock No. 165-4064
Mfr. Part No.MIC2009YM6-TR
BrandMicrochip
$1.17
Each (On a Reel of 3000)
units
High Side 1 275mΩ Internally Limited SOT-23 6 0.2 → 2A 2.9 x 1.6 x 1.3mm 2.9mm 1.6mm 1.3mm 5.5 V +85 °C -
RS Stock No. 146-0314
Mfr. Part No.MIC2506YM
BrandMicrochip
$4.632
Each (In a Tube of 95)
units
High Side, USB Power Distribution 4 75mΩ Internally Limited SOIC 8 2A 4.93 x 3.94 x 1.48mm 4.93mm 3.94mm 1.48mm 7.5 V +85 °C -
RS Stock No. 165-4129
Mfr. Part No.MIC2505-1YM
BrandMicrochip
$2.522
Each (In a Tube of 95)
units
High Side, USB Power Distribution - - Internally Limited SOIC 8 4A 4.93 x 3.94 x 1.48mm 4.93mm 3.94mm 1.48mm 7.5 V +85 °C -