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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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. 911-2723
Mfr. Part No.MIC2005A-1YM6-TR
BrandMicrochip
£0.176
Each (In a Pack of 25)
Units
High Side, USB Power Distribution 1 275mΩ Internally Limited Surface Mount SOT-23 6 0.9A 2.9 x 1.6 x 0.9mm 2.9mm 1.6mm 0.9mm 5.5 V +85 °C
RS Stock No. 165-4312
Mfr. Part No.MIC2005A-1YM6-TR
BrandMicrochip
£0.16
Each (On a Reel of 3000)
Units
High Side, USB Power Distribution 1 275mΩ Internally Limited Surface Mount SOT-23 6 0.9A 2.9 x 1.6 x 0.9mm 2.9mm 1.6mm 0.9mm 5.5 V +85 °C
RS Stock No. 905-4652
Mfr. Part No.1304
£4.72
Each
Units
USB - - - Panel Mount - - 500mA 30 x 12.5 x 8mm 30mm 12.5mm 8mm 4.2 V -
RS Stock No. 910-1509
Mfr. Part No.MIC2026-1YM
BrandMicrochip
£0.762
Each (In a Pack of 10)
Units
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 Stock No. 165-4275
Mfr. Part No.MIC2026-1YM-TR
BrandMicrochip
£0.58
Each (On a Reel of 2500)
Units
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 Stock No. 165-4087
Mfr. Part No.MIC2026-1YM
BrandMicrochip
£0.64
Each (In a Tube of 95)
Units
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 Stock No. 910-1676
Mfr. Part No.MIC2026-1YM-TR
BrandMicrochip
£0.762
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. 905-4624
Mfr. Part No.1689
£19.76
Each
Units
- - - - Panel Mount - - - 20 (L) x 38 (W)mm 20mm 38mm - - -
RS Stock No. 670-9999
Mfr. Part No.FSUSB30MUX
£0.434
Each (In a Pack of 5)
Units
- 1 10Ω - Surface Mount MSOP 10 - 3 x 3 x 1.1mm 3mm 3mm 1.1mm - +85 °C
RS Stock No. 166-2527
Mfr. Part No.FSUSB30MUX
£0.16
Each (On a Reel of 4000)
Units
- 1 10Ω - Surface Mount MSOP 10 - 3 x 3 x 1.1mm 3mm 3mm 1.1mm - +85 °C
RS Stock No. 165-4064
Mfr. Part No.MIC2009YM6-TR
BrandMicrochip
£0.556
Each (On a Reel of 3000)
Units
High Side 1 275mΩ Internally Limited Surface Mount SOT-23 6 0.2 → 2A 2.9 x 1.6 x 1.3mm 2.9mm 1.6mm 1.3mm 5.5 V +85 °C
RS Stock No. 910-1688
Mfr. Part No.MIC2009YM6-TR
BrandMicrochip
£0.732
Each (In a Pack of 5)
Units
High Side 1 275mΩ Internally Limited Surface Mount SOT-23 6 0.2 → 2A 2.9 x 1.6 x 1.3mm 2.9mm 1.6mm 1.3mm 5.5 V +85 °C
RS Stock No. 662-2384
Mfr. Part No.TPS2051BDBVT
£0.74
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. 922-4729
Mfr. Part No.TPS2051BDBVT
£0.509
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. 864-4743
Mfr. Part No.FSUSB42MUX
£0.177
Each (On a Reel of 4000)
Units
- 1 6.5Ω - Surface Mount MSOP 10 - 3 x 3 x 0.85mm 3mm 3mm 0.85mm - +85 °C
RS Stock No. 920-3403
Mfr. Part No.TPS2044BD
£1.782
Each (In a Tube of 40)
Units
High Side, USB Power Distribution 8 70mΩ 898.47 mW Surface Mount SOIC 16 1.25A 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm 1.58mm 5.5 V +85 °C
RS Stock No. 527-366
Mfr. Part No.TPS2041BD
£0.754
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. 517-1084
Mfr. Part No.TPS2044BD
£2.08
Each (In a Pack of 5)
Units
High Side, USB Power Distribution 8 70mΩ 898.47 mW Surface Mount SOIC 16 1.25A 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm 1.58mm 5.5 V +85 °C
RS Stock No. 145-0390
Mfr. Part No.TPS2041BD
£0.737
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. 739-5144
Mfr. Part No.FSUSB42MUX
£0.47
Each
Units
- 2 6.5Ω - Surface Mount MSOP 10 - 3 x 3 x 0.7mm 3mm 3mm 0.7mm - +85 °C
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