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.


...
Read more Read less

Filters

Viewing 1 - 20 of 213 products
Results per page
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. 923-2461
Mfr. Part No.TPS2042BD
TWD39.30
Each (In a Tube of 75)
units
High Side, USB Power Distribution 4 49mΩ 585.82 mW Surface Mount SOIC 8 1.25A 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 5.5 V +85 °C
RS Stock No. 423-163
Mfr. Part No.TPS2042BD
TWD46.20
Each (In a Pack of 5)
units
High Side, USB Power Distribution 4 49mΩ 585.82 mW Surface Mount SOIC 8 1.25A 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 5.5 V +85 °C
RS Stock No. 165-4129
Mfr. Part No.MIC2505-1YM
BrandMicrochip
TWD53.10
Each (In a Tube of 95)
units
High Side, USB Power Distribution - - Internally Limited Surface Mount 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. 910-1691
Mfr. Part No.MIC2026-2YM-TR
BrandMicrochip
TWD32.20
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. 145-9132
Mfr. Part No.MIC2026-2YM
BrandMicrochip
TWD27.90
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. 910-1600
Mfr. Part No.MIC2506YM
BrandMicrochip
TWD121.00
Each (In a Pack of 2)
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. 823-3185
Mfr. Part No.AP2411MP-13
TWD10.60
Each (In a Pack of 25)
units
High Side 1 135mΩ Internally Limited Surface Mount MSOP 8 2.85A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +85 °C
RS Stock No. 145-6749
Mfr. Part No.TPS2052BDGN
TWD43.30
Each (In a Tube of 80)
units
High Side, USB Power Distribution 4 70mΩ 1.71 W Surface Mount MSOP 8 1.25A 3 x 3 x 1.02mm 3mm 3mm 1.02mm 5.5 V +85 °C
RS Stock No. 122-3270
Mfr. Part No.AP2411MP-13
TWD4.30
Each (On a Reel of 2500)
units
High Side 2 135mΩ Internally Limited Surface Mount MSOP 8 2.85A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +85 °C
RS Stock No. 910-1506
Mfr. Part No.MIC2026-2YM
BrandMicrochip
TWD32.20
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. 662-2460
Mfr. Part No.TPS2052BDGN
TWD51.20
Each (In a Pack of 5)
units
High Side, USB Power Distribution 4 70mΩ 1.71 W Surface Mount MSOP 8 1.25A 3 x 3 x 1.02mm 3mm 3mm 1.02mm 5.5 V +85 °C
RS Stock No. 165-4277
Mfr. Part No.MIC2026-2YM-TR
BrandMicrochip
TWD24.50
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. 146-0314
Mfr. Part No.MIC2506YM
BrandMicrochip
TWD100.80
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. 910-1773
Mfr. Part No.MIC2505-1YM
BrandMicrochip
TWD63.80
Each (In a Pack of 5)
units
High Side, USB Power Distribution - - Internally Limited Surface Mount 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. 166-2029
Mfr. Part No.FSA832L10X
TWD9.00
Each (On a Reel of 5000)
units
Isolation 1 - Surface Mount MicroPak 10 - 2.1 x 1.6 x 0.5mm 2.1mm 1.6mm 0.5mm 6 V +85 °C
RS Stock No. 823-3176
Mfr. Part No.AP2111SG-13
TWD17.60
Each (In a Pack of 20)
units
High Side 2 170mΩ Internally Limited Surface Mount SOIC 8 2.8A 4.95 x 3.95 x 1.5mm 4.95mm 3.95mm 1.5mm 5.5 V +85 °C
RS Stock No. 911-2720
Mfr. Part No.MIC2005-0.5YM6-TR
BrandMicrochip
TWD28.60
Each (In a Pack of 5)
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. 168-5062
Mfr. Part No.TPS2559QWDRCTQ1
TWD72.50
Each (On a Reel of 250)
units
Power 3 13mΩ Internally Limited Surface Mount VSON 10 7460mA 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 6.5 V +125 °C
RS Stock No. 145-9140
Mfr. Part No.MIC2076-1YM
BrandMicrochip
TWD33.60
Each (In a Tube of 95)
units
High Side, USB Power Distribution - - 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. 178-4411
Mfr. Part No.FUSB302BVMPX
TWD39.90
Each (In a Pack of 10)
units
USB 1 - - Surface Mount WQFN 14 - 2.5 x 2.5 x 0.72mm 2.5mm 2.5mm 0.72mm 21 V +105 °C