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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Viewing 1 - 20 of 236 products
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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. 145-0390
Mfr. Part No.TPS2041BD
kr 11,608
Each (In a Tube of 75)
Units
High Side, USB Power Distribution 4 70mΩ 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. 905-4624
Mfr. Part No.1689
kr 219,94
Each
Units
- - - - Panel Mount - - - 20 (L) x 38 (W)mm 20mm 38mm - - -
RS Stock No. 527-366
Mfr. Part No.TPS2041BD
kr 13,818
Each (In a Pack of 5)
Units
High Side, USB Power Distribution 4 70mΩ 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. 165-8557
Mfr. Part No.AP2145SG-13
kr 4,084
Each (On a Reel of 2500)
Units
Low Side 2 140mΩ Internally Limited Surface Mount SOIC 8 1A 4.95 x 3.95 x 1.5mm 4.95mm 3.95mm 1.5mm 5.5 V +85 °C
RS Stock No. 171-2070
Mfr. Part No.BD6517F-E2
BrandROHM
kr 9,991
Each (On a Reel of 2500)
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. 165-8558
Mfr. Part No.AP2191SG-13
kr 3,681
Each (On a Reel of 2500)
Units
High Side 2 115mΩ Internally Limited Surface Mount SOIC 8 2.6A 4.95 x 3.95 x 1.5mm 4.95mm 3.95mm 1.5mm 5.5 V +85 °C
RS Stock No. 178-4282
Mfr. Part No.FSUSB242UCX
kr 2,113
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. 168-5062
Mfr. Part No.TPS2559QWDRCTQ1
kr 12,653
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. 662-2381
Mfr. Part No.TPS2041BDBVT
kr 13,12
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. 423-090
Mfr. Part No.TPS2042BDGN
kr 19,562
Each (In a Pack of 5)
Units
High Side, USB Power Distribution 4 49mΩ 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. 739-5156
Mfr. Part No.FSUSB63UMX
kr 3,86
Each
Units
Analogue - - - Surface Mount UMLP 12 - 1.8 x 1.8 x 0.5mm 1.8mm 1.8mm 0.5mm - +85 °C
RS Stock No. 162-7138
Mfr. Part No.TPS2041BDGN
kr 13,542
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. 910-1676
Mfr. Part No.MIC2026-1YM-TR
BrandMicrochip
kr 8,953
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. 662-2439
Mfr. Part No.TPS2041BDGN
kr 15,912
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. 171-3082
Mfr. Part No.TC7USB42MU
BrandToshiba
kr 1,591
Each (In a Pack of 25)
Units
USB 2 14Ω 200 mW Surface Mount UQFN 10 50mA 1.4 x 1.8 x 0.5mm 1.4mm 1.8mm 0.5mm 4.3 V +85 °C
RS Stock No. 165-8353
Mfr. Part No.AP2337SA-7
kr 0,916
Each (On a Reel of 3000)
Units
High Side 1 170mΩ Internally Limited Surface Mount SOT-23 3 1.9A 3 x 1.4 x 1.1mm 3mm 1.4mm 1.1mm 5.5 V +85 °C
RS Stock No. 662-2454
Mfr. Part No.TPS2051BD
kr 13,638
Each (In a Pack of 5)
Units
High Side, USB Power Distribution 4 70mΩ 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. 812-0405
Mfr. Part No.TPS2500DRCT
kr 28,274
Each (In a Pack of 5)
Units
High Side, Low Side 1 120mΩ 2.4 W Surface Mount VSON 10 130 → 1400mA 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.25 V +85 °C
RS Stock No. 921-0376
Mfr. Part No.AP2101MPG-13
kr 2,119
Each (In a Pack of 20)
Units
Low 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. 162-7140
Mfr. Part No.TPS2062D
kr 8,907
Each (In a Tube of 75)
Units
High Side, USB Power Distribution 4 70mΩ 585.82 mW Surface Mount SOIC 8 1.5A 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 5.5 V +85 °C
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