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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Omschrijving Prijs 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-stocknr. 178-4287
FabrikantnummerFUSB303TMX
FabrikantON Semiconductor
€ 0,169
Each (On a Reel of 5000)
Aantal stuks
USB 1 - - Surface Mount QFN 12 - 1.65 x 1.65 x 0.35mm 1.65mm 1.65mm 0.35mm 22 V +85 °C
RS-stocknr. 662-2502
FabrikantnummerTPS2148IDGN
€ 2,406
Each (In a Pack of 5)
Aantal stuks
High Side, USB Power Distribution 2 340mΩ 1.46 W Surface Mount MSOP 8 0.4A 3 x 3 x 1.02mm 3mm 3mm 1.02mm 5.5 V +85 °C
RS-stocknr. 186-1262
FabrikantnummerFUSB307BVMPX
FabrikantON Semiconductor
€ 0,568
Each (On a Reel of 3000)
Aantal stuks
USB - - - Surface Mount WQFN 16 210.5mA 3 x 3 x 0.75mm 3mm 3mm 0.75mm 21.5 V +105 °C
RS-stocknr. 165-8557
FabrikantnummerAP2145SG-13
FabrikantDiodesZetex
€ 0,38
Each (On a Reel of 2500)
Aantal stuks
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-stocknr. 517-1056
FabrikantnummerTPS2034D
€ 2,162
Each (In a Pack of 5)
Aantal stuks
High Side, USB Power Distribution 4 33mΩ 725 mW Surface Mount SOIC 8 3A 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 5.5 V +85 °C
RS-stocknr. 177-0332
FabrikantnummerMIC2505YM
FabrikantMicrochip
€ 1,392
Each (In a Tube of 95)
Aantal stuks
High Side 1 75mΩ - Surface Mount SOIC 8 4A 4.93 x 3.94 x 1.48mm 4.93mm 3.94mm 1.48mm 7.5 V +85 °C
Nieuw
RS-stocknr. 204-2528
FabrikantnummerMAX77958EWV+
FabrikantMaxim Integrated
€ 1,768
Each (In a Pack of 5)
Aantal stuks
USB 1 - 24.4 mW Surface Mount WLP 6 - - - - - - -
RS-stocknr. 165-4275
FabrikantnummerMIC2026-1YM-TR
FabrikantMicrochip
€ 0,641
Each (On a Reel of 2500)
Aantal stuks
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-stocknr. 145-9132
FabrikantnummerMIC2026-2YM
FabrikantMicrochip
€ 0,707
Each (In a Tube of 95)
Aantal stuks
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-stocknr. 162-7138
FabrikantnummerTPS2041BDGN
€ 0,936
Each (In a Tube of 80)
Aantal stuks
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-stocknr. 168-5062
FabrikantnummerTPS2559QWDRCTQ1
€ 1,273
Each (On a Reel of 250)
Aantal stuks
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-stocknr. 921-5074
FabrikantnummerTPS2552DBVT
€ 0,617
Each (On a Reel of 250)
Aantal stuks
USB Power Distribution 1 85mΩ 285 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-stocknr. 190-4413
FabrikantnummerMAX4906FELB+T
FabrikantMaxim Integrated
€ 2,118
Each (On a Reel of 2500)
Aantal stuks
High/Full-Speed USB - 423.7 mW Surface Mount μDFN 10 - 2.05 x 2.05 x 0.55mm 2.05mm 2.05mm 0.55mm 3.6 V +85 °C
RS-stocknr. 910-1868
FabrikantnummerMIC2545A-1YM
FabrikantMicrochip
€ 2,89
Each (In a Pack of 2)
Aantal stuks
High Side, USB Power Distribution - - Internally Limited Surface Mount SOP 8 3A 5 x 3.99 x 1.63mm 5mm 3.99mm 1.63mm 5.5 V +85 °C
RS-stocknr. 121-9198
FabrikantnummerTPS2051BDGN
€ 1,358
Each (In a Tube of 80)
Aantal stuks
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
Nieuw
RS-stocknr. 204-2527
FabrikantnummerMAX77958EWV+
FabrikantMaxim Integrated
€ 1,185
Each (On a Tape of 200)
Aantal stuks
USB 1 - 24.4 mW Surface Mount WLP 6 - - - - - - -
RS-stocknr. 144-5735
FabrikantnummerUPD1002-A/MQ
FabrikantMicrochip
€ 0,961
Each (In a Tray of 490)
Aantal stuks
USB Power Distribution - - - Surface Mount SQFN 32 - 5.1 x 5.1 x 0.95mm 5.1mm 5.1mm 0.95mm 6 V +70 °C
RS-stocknr. 166-2029
FabrikantnummerFSA832L10X
FabrikantON Semiconductor
€ 0,218
Each (On a Reel of 5000)
Aantal stuks
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-stocknr. 730-0657
FabrikantnummerTPS2540RTET
€ 1,75
Each
Aantal stuks
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-stocknr. 165-8453
FabrikantnummerAP2553AW6-7
FabrikantDiodesZetex
€ 0,157
Each (On a Reel of 3000)
Aantal stuks
High Side 1 135mΩ Internally Limited Surface Mount SOT-26 6 2542mA 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm 5.5 V +85 °C
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