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 switchesMost 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. 146-4721
Mfr. Part No.AP22804BSN-7
£0.09
Each (On a Reel of 3000)
Units
High Side 1 65mΩ - Surface Mount U-DFN2020 5 + Tab 3.3A 2.07 x 2.07 x 0.58mm 2.07mm 2.07mm 0.58mm 2.4 V +85 °C
RS Stock No. 146-4760
Mfr. Part No.AP22814BSN-7
£0.085
Each (In a Pack of 10)
Units
High Side 1 65mΩ - Surface Mount U-DFN2020 5 + Tab 3.8A 2.07 x 2.07 x 0.58mm 2.07mm 2.07mm 0.58mm 2.4 V +85 °C
RS Stock No. 177-0324
Mfr. Part No.MIC2075-1YMM
BrandMicrochip
£0.464
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
RS Stock No. 146-4824
Mfr. Part No.AP22811AW5-7
£0.329
Each (In a Pack of 10)
Units
High Side 1 90mΩ - Surface Mount SOT25 5 3.2A 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm 2.4 V +85 °C
RS Stock No. 171-2104
Mfr. Part No.BD6516F-E2
BrandROHM
£1.434
Each (In a Pack of 5)
Units
High Side 2 180Ω 670 mW Surface Mount SOP 8 1.65A 5 x 4.4 x 1.5mm 5mm 4.4mm 1.5mm 5.5 V +85 °C
RS Stock No. 146-4710
Mfr. Part No.AP22814BW5-7
£0.219
Each (On a Reel of 3000)
Units
High Side 1 65mΩ - Surface Mount SOT25 5 3.8A 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm 2.4 V +85 °C
RS Stock No. 178-4284
Mfr. Part No.FUSB302BVMPX
£0.697
Each (On a Reel of 3000)
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
RS Stock No. 817-5834
Mfr. Part No.BQ24190RGET
£3.06
1 Tape of 1
Tape(s)
High Side, Low Side 1 20mΩ - Surface Mount VQFN 24 9A 4.15 x 4.15 x 0.95mm 4.15mm 4.15mm 0.95mm 17 V +85 °C
RS Stock No. 177-0323
Mfr. Part No.MIC2075-1YM
BrandMicrochip
£0.65
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. 921-0385
Mfr. Part No.AP2111MPG-13
£0.094
Each (In a Pack of 20)
Units
High Side 2 115mΩ Internally Limited Surface Mount MSOP 8EP 8 2.8A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +85 °C
RS Stock No. 146-4777
Mfr. Part No.AP22814BW5-7
£0.536
Each (In a Pack of 10)
Units
High Side 1 65mΩ - Surface Mount SOT25 5 3.8A 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm 2.4 V +85 °C
RS Stock No. 186-1507
Mfr. Part No.FUSB307BVMPX
£1.206
Each (In a Pack of 5)
Units
USB - - - Surface Mount WQFN 16 210.5mA 3 x 3 x 0.75mm 3mm 3mm 0.75mm 21.5 V +105 °C
RS Stock No. 178-4282
Mfr. Part No.FSUSB242UCX
£0.18
Each (On a Reel of 3000)
Units
USB 2 - Surface Mount WLCSP 9 - 1.26 x 1.26 x 0.31mm 1.26mm 1.26mm 0.31mm 5.5 V +85 °C
RS Stock No. 177-0815
Mfr. Part No.MIC2075-2YMM
BrandMicrochip
£0.611
Each (In a Pack of 20)
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
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