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 Mounting Type Package Type Pin Count Current Limit Dimensions Length Width Height Maximum Input Voltage Maximum Operating Temperature
RS stock no. 111-5720
Mfr. Part No.UPD1002-A/MQ
BrandMicrochip
R 17.496
Each (In a Pack of 5)
units
USB Power Distribution - - - Surface Mount SQFN 32 - 5.1 x 5.1 x 0.95mm 5.1mm 5.1mm 0.95mm 6 V +70 °C
RS stock no. 144-5735
Mfr. Part No.UPD1002-A/MQ
BrandMicrochip
R 17.196
Each (In a Tray of 490)
units
USB Power Distribution - - - Surface Mount SQFN 32 - 5.1 x 5.1 x 0.95mm 5.1mm 5.1mm 0.95mm 6 V +70 °C
RS stock no. 165-4312
Mfr. Part No.MIC2005A-1YM6-TR
BrandMicrochip
R 3.126
Each (On a Reel of 3000)
units
High Side, USB Power Distribution 1 275mΩ Internally Limited Surface Mount 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. 910-1676
Mfr. Part No.MIC2026-1YM-TR
BrandMicrochip
R 13.549
Each (In a Pack of 10)
units
High Side 2 170mΩ Internally Limited Surface Mount SOIC 8 - 4.93 x 3.94 x 1.48mm 4.93mm 3.94mm 1.48mm 5.5 V +85 °C
RS stock no. 910-1509
Mfr. Part No.MIC2026-1YM
BrandMicrochip
R 13.543
Each (In a Pack of 10)
units
High Side, USB Power Distribution 4 90mΩ Internally Limited Surface Mount SOIC 8 0.9A 5 x 3.99 x 1.63mm 5mm 3.99mm 1.63mm 5.5 V +85 °C
RS stock no. 911-2723
Mfr. Part No.MIC2005A-1YM6-TR
BrandMicrochip
R 3.575
Each (In a Pack of 25)
units
High Side, USB Power Distribution 1 275mΩ Internally Limited Surface Mount 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. 165-4275
Mfr. Part No.MIC2026-1YM-TR
BrandMicrochip
R 11.278
Each (On a Reel of 2500)
units
High Side, USB Power Distribution 4 90mΩ Internally Limited Surface Mount SOIC 8 0.9A 5 x 3.99 x 1.63mm 5mm 3.99mm 1.63mm 5.5 V +85 °C
RS stock no. 165-4087
Mfr. Part No.MIC2026-1YM
BrandMicrochip
R 12.649
Each (In a Tube of 95)
units
High Side, USB Power Distribution 4 90mΩ Internally Limited Surface Mount SOIC 8 0.9A 5 x 3.99 x 1.63mm 5mm 3.99mm 1.63mm 5.5 V +85 °C
RS stock no. 165-4277
Mfr. Part No.MIC2026-2YM-TR
BrandMicrochip
R 11.278
Each (On a Reel of 2500)
units
High Side 2 170mΩ Internally Limited Surface Mount SOIC 8 - 4.93 x 3.94 x 1.48mm 4.93mm 3.94mm 1.48mm 5.5 V +85 °C
RS stock no. 145-9132
Mfr. Part No.MIC2026-2YM
BrandMicrochip
R 12.649
Each (In a Tube of 95)
units
High Side, USB Power Distribution 4 90mΩ Internally Limited Surface Mount SOIC 8 0.9A 5 x 3.99 x 1.63mm 5mm 3.99mm 1.63mm 5.5 V +85 °C
RS stock no. 910-1506
Mfr. Part No.MIC2026-2YM
BrandMicrochip
R 13.543
Each (In a Pack of 10)
units
High Side, USB Power Distribution 4 90mΩ Internally Limited Surface Mount 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
R 3.113
Each (On a Reel of 3000)
units
High Side 1 275mΩ Internally Limited Surface Mount 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. 910-1496
Mfr. Part No.MIC2076-2YM
BrandMicrochip
R 16.966
Each (In a Pack of 5)
units
High Side, USB Power Distribution 4 90mΩ Internally Limited Surface Mount SOIC 8 0.9A 5 x 3.99 x 1.63mm 5mm 3.99mm 1.63mm 5.5 V +85 °C
RS stock no. 145-9131
Mfr. Part No.MIC2076-2YM
BrandMicrochip
R 14.439
Each (In a Tube of 95)
units
High Side, USB Power Distribution 4 90mΩ Internally Limited Surface Mount 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
R 13.549
Each (In a Pack of 10)
units
High Side 2 170mΩ Internally Limited Surface Mount SOIC 8 - 4.93 x 3.94 x 1.48mm 4.93mm 3.94mm 1.48mm 5.5 V +85 °C
RS stock no. 910-1809
Mfr. Part No.MIC2005A-1YM5-TR
BrandMicrochip
R 7.344
Each (In a Pack of 25)
units
High Side 1 275mΩ Internally Limited Surface Mount 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. 910-1868
Mfr. Part No.MIC2545A-1YM
BrandMicrochip
R 21.32
Each (In a Pack of 2)
units
High Side, USB Power Distribution - - Internally Limited Surface Mount SOP 8 3A 5 x 3.99 x 1.63mm 5mm 3.99mm 1.63mm 5.5 V +85 °C
RS stock no. 146-0314
Mfr. Part No.MIC2506YM
BrandMicrochip
R 45.872
Each (In a Tube of 95)
units
High Side, USB Power Distribution 4 75mΩ Internally Limited Surface Mount 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. 177-0314
Mfr. Part No.MIC2025-1YM
BrandMicrochip
R 10.30
Each (In a Tube of 95)
units
USB High Side Power 1 160mΩ - Surface Mount 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. 177-0315
Mfr. Part No.MIC2025-1YMM
BrandMicrochip
R 7.214
Each (In a Tube of 100)
units
USB High Side Power 1 160mΩ - Surface Mount MSOP 8 0.85A 3 x 3 x 0.92mm 3mm 3mm 0.92mm 5.5 V +85 °C