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
$0.505
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
$0.358
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
$2.406
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. 145-9132
Mfr. Part No.MIC2026-2YM
BrandMicrochip
$0.862
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. 910-1830
Mfr. Part No.MIC2076-1YM
BrandMicrochip
$1.516
Each (In a Pack of 5)
units
High Side, USB Power Distribution - - 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. 910-1691
Mfr. Part No.MIC2026-2YM-TR
BrandMicrochip
$1.363
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. 165-4275
Mfr. Part No.MIC2026-1YM-TR
BrandMicrochip
$0.906
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. 145-9133
Mfr. Part No.MIC2025-2YM
BrandMicrochip
$0.703
Each (In a Tube of 95)
units
High Side, USB Power Distribution 3 90mΩ Internally Limited SOIC 8 0.7A 5 x 3.99 x 1.63mm 5mm 3.99mm 1.63mm 5.5 V +85 °C -
RS Stock No. 910-1600
Mfr. Part No.MIC2506YM
BrandMicrochip
$4.905
Each (In a Pack of 2)
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. 910-1676
Mfr. Part No.MIC2026-1YM-TR
BrandMicrochip
$1.363
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. 910-1773
Mfr. Part No.MIC2505-1YM
BrandMicrochip
$2.912
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. 910-1809
Mfr. Part No.MIC2005A-1YM5-TR
BrandMicrochip
$0.631
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. 146-0314
Mfr. Part No.MIC2506YM
BrandMicrochip
$3.129
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. 165-4209
Mfr. Part No.UCS1003-2-BP
BrandMicrochip
$2.406
Each (In a Tray of 490)
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. 910-1509
Mfr. Part No.MIC2026-1YM
BrandMicrochip
$1.344
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. 165-4225
Mfr. Part No.MIC2005A-1YM5-TR
BrandMicrochip
$0.358
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. 145-9140
Mfr. Part No.MIC2076-1YM
BrandMicrochip
$0.975
Each (In a Tube of 95)
units
High Side, USB Power Distribution - - 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. 165-4064
Mfr. Part No.MIC2009YM6-TR
BrandMicrochip
$1.264
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. 145-9131
Mfr. Part No.MIC2076-2YM
BrandMicrochip
$0.975
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. 910-1688
Mfr. Part No.MIC2009YM6-TR
BrandMicrochip
$1.782
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 -