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.

...
Read more Read less

Filters

Viewing 21 - 40 of 234 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. 822-8821
Mfr. Part No.AP2331SA-7
£0.296
Each (In a Pack of 25)
Units
High Side 1 350mΩ Internally Limited Surface Mount SOT-23 3 0.5A 3 x 1.4 x 1.1mm 3mm 1.4mm 1.1mm 5.2 V +85 °C
RS Stock No. 122-2325
Mfr. Part No.AP2331SA-7
£0.103
Each (On a Reel of 3000)
Units
High Side 1 350mΩ - Surface Mount SOT-23 3 0.5A 3 x 1.4 x 1.1mm 3mm 1.4mm 1.1mm 5.2 V +85 °C
RS Stock No. 662-2457
Mfr. Part No.TPS2051BDGN
£1.378
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. 165-4129
Mfr. Part No.MIC2505-1YM
BrandMicrochip
£1.28
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. 910-1773
Mfr. Part No.MIC2505-1YM
BrandMicrochip
£1.53
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. 822-8833
Mfr. Part No.AP2401S-13
£0.079
Each (In a Pack of 25)
Units
High Side 2 135mΩ Internally Limited Surface Mount SOIC 8 2.85A 4.95 x 3.95 x 1.5mm 4.95mm 3.95mm 1.5mm 5.5 V +85 °C
RS Stock No. 822-8824
Mfr. Part No.AP2191WG-7
£0.647
Each (In a Pack of 10)
Units
High Side 1 170mΩ Internally Limited Surface Mount SOT-25 5 2.6A 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm 5.5 V +85 °C
RS Stock No. 169-7370
Mfr. Part No.AP2401S-13
£0.08
Each (On a Reel of 2500)
Units
High Side 2 135mΩ Internally Limited Surface Mount SOIC 8 2.85A 4.95 x 3.95 x 1.5mm 4.95mm 3.95mm 1.5mm 5.5 V +85 °C
RS Stock No. 169-7367
Mfr. Part No.AP2191WG-7
£0.347
Each (On a Reel of 3000)
Units
High Side 1 170mΩ Internally Limited Surface Mount SOT-25 5 2.6A 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm 5.5 V +85 °C
RS Stock No. 462-6123
Mfr. Part No.TPS2020D
£2.21
Each
Units
High Side, USB Power Distribution 4 33mΩ 725 mW Surface Mount SOIC 8 0.3A 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 5.5 V +85 °C
RS Stock No. 162-4887
Mfr. Part No.TPS2020D
£1.877
Each (In a Tube of 75)
Units
High Side, USB Power Distribution 4 33mΩ 725 mW Surface Mount SOIC 8 0.3A 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 5.5 V +85 °C
RS Stock No. 121-9198
Mfr. Part No.TPS2051BDGN
£1.173
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. 662-2381
Mfr. Part No.TPS2041BDBVT
£1.136
Each (In a Pack of 5)
Units
High Side, USB Power Distribution 2 95mΩ 285 mW Surface Mount SOT-23 5 1.25A 2.9 x 1.6 x 1.15mm 2.9mm 1.6mm 1.15mm 5.5 V +85 °C
RS Stock No. 910-1809
Mfr. Part No.MIC2005A-1YM5-TR
BrandMicrochip
£0.178
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. 165-8532
Mfr. Part No.AP2171SG-13
£0.126
Each (On a Reel of 2500)
Units
High Side 2 110mΩ Internally Limited Surface Mount U-DFN2018 6 1.9A 1.87 x 2.07 x 0.555mm 1.87mm 2.07mm 0.555mm 5.5 V +85 °C
RS Stock No. 709-8795
Mfr. Part No.TPS2553DBVT
£1.19
Each
Units
USB Power Distribution 1 85mΩ 625 mW Surface Mount SOT-23 6 1.2A 2.9 x 1.6 x 1.15mm 2.9mm 1.6mm 1.15mm 6.5 V +85 °C
RS Stock No. 122-2931
Mfr. Part No.AP2156MPG-13
£0.344
Each (On a Reel of 2500)
Units
High Side 2 160mΩ Internally Limited Surface Mount MSOP 8 1A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +85 °C
RS Stock No. 922-4725
Mfr. Part No.TPS2041BDBVT
£0.777
Each (On a Reel of 250)
Units
High Side, USB Power Distribution 2 95mΩ 285 mW Surface Mount SOT-23 5 1.25A 2.9 x 1.6 x 1.15mm 2.9mm 1.6mm 1.15mm 5.5 V +85 °C
RS Stock No. 168-4137
Mfr. Part No.TPS2540RTET
£1.108
Each (On a Reel of 250)
Units
High Side 1 120mΩ Internally Limited Surface Mount WQFN 16 2.8A 3.15 x 3.15 x 0.75mm 3.15mm 3.15mm 0.75mm 5.5 V +85 °C
RS Stock No. 730-0657
Mfr. Part No.TPS2540RTET
£1.65
Each
Units
High Side 1 120mΩ Internally Limited Surface Mount WQFN 16 2.8A 3.15 x 3.15 x 0.75mm 3.15mm 3.15mm 0.75mm 5.5 V +85 °C
Related Products
From Micrel, a high-sided switch suitable for general-purpose ...
Description:
From Micrel, a high-sided switch suitable for general-purpose power distribution. Typically used in USB peripherals and desktop or notebook PCs.
From Micrel, a high-sided switch suitable for general-purpose ...
Description:
From Micrel, a high-sided switch suitable for general-purpose power distribution. Typically used in USB peripherals and desktop or notebook PCs.
AP2191DWG-7 | DiodesZetex AP2191DWG-7, Power Distribution Switch, High ...
Description:
AP2191DWG-7 | DiodesZetex AP2191DWG-7, Power Distribution Switch, High Side, 115mΩ, 2.7 V min. 5-Pin, SOT-25
AP2152SG-13 | DiodesZetex AP2152SG-13, Dual Power Distribution Switch, ...
Description:
AP2152SG-13 | DiodesZetex AP2152SG-13, Dual Power Distribution Switch, High Side, 160mΩ, 2.7 V min. 8-Pin, SOIC