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 27 products
Results per page
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. 739-5144
Mfr. Part No.FSUSB42MUX
$0.47
Each
units
- 2 6.5Ω - MSOP 10 - 3 x 3 x 0.7mm 3mm 3mm 0.7mm - +85 °C -
RS Stock No. 864-4743
Mfr. Part No.FSUSB42MUX
$0.449
Each (On a Reel of 4000)
units
- 1 6.5Ω - MSOP 10 - 3 x 3 x 0.85mm 3mm 3mm 0.85mm - +85 °C -
RS Stock No. 169-8565
Mfr. Part No.FSUSB45UMX
$0.969
Each (On a Reel of 5000)
units
- - 0.65Ω - UMLP 10 - 1.8 x 1.4 x 0.5mm 1.8mm 1.4mm 0.5mm 4.3 V +85 °C -
New
RS Stock No. 186-1262
Mfr. Part No.FUSB307BVMPX
$1.626
Each (On a Reel of 3000)
units
USB - - - WQFN 16 210.5mA 3 x 3 x 0.75mm 3mm 3mm 0.75mm 21.5 V +105 °C -
New
RS Stock No. 178-4289
Mfr. Part No.FUSB307BMPX
$1.274
Each (On a Reel of 3000)
units
USB 1 - - WQFN 16 210.5mA 3 x 3 x 0.75mm 3mm 3mm 0.75mm 21.5 V +85 °C -
New
RS Stock No. 178-4287
Mfr. Part No.FUSB303TMX
$0.371
Each (On a Reel of 5000)
units
USB 1 - - QFN 12 - 1.65 x 1.65 x 0.35mm 1.65mm 1.65mm 0.35mm 22 V +85 °C -
RS Stock No. 739-5156
Mfr. Part No.FSUSB63UMX
$0.91
Each
units
Analogue - - - UMLP 12 - 1.8 x 1.8 x 0.5mm 1.8mm 1.8mm 0.5mm - +85 °C -
RS Stock No. 135-8695
Mfr. Part No.FUSB252UMX
$2.80
Each (In a Pack of 5)
units
High Speed Digital 2 480mΩ - UMLP 16 - 1.8 x 2.6 x 0.5mm 1.8mm 2.6mm 0.5mm 5.5 V +85 °C -
New
RS Stock No. 186-1487
Mfr. Part No.FSA1153UCX
$1.72
Each (In a Pack of 10)
units
USB - - WLCSP 12 - 1.605 x 1.44 x 0.42mm 1.61mm 1.44mm 0.42mm 5.5 V +85 °C -
RS Stock No. 166-2029
Mfr. Part No.FSA832L10X
$0.669
Each (On a Reel of 5000)
units
Isolation 1 - MicroPak 10 - 2.1 x 1.6 x 0.5mm 2.1mm 1.6mm 0.5mm 6 V +85 °C -
New
RS Stock No. 178-4635
Mfr. Part No.FSUSB242UCX
$0.97
Each (In a Pack of 10)
units
USB 2 - WLCSP 9 - 1.26 x 1.26 x 0.31mm 1.26mm 1.26mm 0.31mm 5.5 V +85 °C -
New
RS Stock No. 178-4452
Mfr. Part No.FUSB303TMX
$0.704
Each (In a Pack of 50)
units
USB 1 - - QFN 12 - 1.65 x 1.65 x 0.35mm 1.65mm 1.65mm 0.35mm 22 V +85 °C -
RS Stock No. 163-0710
Mfr. Part No.NCP383LMUAJAATXG
$0.984
Each (On a Reel of 3000)
units
High Side 2 95Ω 850 mW UDFN 10 3.01A 3 x 3 x 0.5mm 3mm 3mm 0.5mm 5.5 V +85 °C -
RS Stock No. 864-4712
Mfr. Part No.FSUSB63UMX
$0.718
Each (On a Reel of 5000)
units
Multiplexer - - - UMLP 12 - 1.8 x 1.8 x 0.5mm 1.8mm 1.8mm 0.5mm - +85 °C -
New
RS Stock No. 178-4474
Mfr. Part No.FUSB307BMPX
$2.41
Each (In a Pack of 10)
units
USB 1 - - WQFN 16 210.5mA 3 x 3 x 0.75mm 3mm 3mm 0.75mm 21.5 V +85 °C -
RS Stock No. 166-2527
Mfr. Part No.FSUSB30MUX
$0.678
Each (On a Reel of 4000)
units
- 1 10Ω - MSOP 10 - 3 x 3 x 1.1mm 3mm 3mm 1.1mm - +85 °C -
RS Stock No. 809-4996
Mfr. Part No.FAN3989MLP8X
$0.77
Each (On a Tape of 5)
units
- 1 - - MLP 8 1.5A 3 x 3 x 0.75mm 3mm 3mm 0.75mm 20 V +85 °C -
RS Stock No. 166-2089
Mfr. Part No.FAN3989MLP8X
$0.999
Each (On a Reel of 3000)
units
- 1 - - MLP 8 1.5A 3 x 3 x 0.75mm 3mm 3mm 0.75mm 20 V +85 °C -
New
RS Stock No. 178-4284
Mfr. Part No.FUSB302BVMPX
$1.703
Each (On a Reel of 3000)
units
USB 1 - - WQFN 14 - 2.5 x 2.5 x 0.72mm 2.5mm 2.5mm 0.72mm 21 V +105 °C AEC-Q100
New
RS Stock No. 186-1261
Mfr. Part No.FSA1153UCX
$0.588
Each (On a Reel of 3000)
units
USB - - WLCSP 12 - 1.605 x 1.44 x 0.42mm 1.61mm 1.44mm 0.42mm 5.5 V +85 °C -