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. 166-2089
Mfr. Part No.FAN3989MLP8X
£0.353
Each (On a Reel of 3000)
Units
- 1 - - Surface Mount MLP 8 1.5A 3 x 3 x 0.75mm 3mm 3mm 0.75mm 20 V +85 °C
RS Stock No. 166-2029
Mfr. Part No.FSA832L10X
£0.194
Each (On a Reel of 5000)
Units
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 Stock No. 145-7715
Mfr. Part No.TPS2066CDGN
£1.378
Each (In a Tube of 80)
Units
High Side 2 112mΩ Internally Limited Surface Mount MSOP 8 2.1A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +85 °C
RS Stock No. 805-7186
Mfr. Part No.NCP383LMUAJAATXG
£0.314
Each (In a Pack of 10)
Units
High Side 2 95Ω 850 mW Surface Mount UDFN 10 3.01A 3 x 3 x 0.5mm 3mm 3mm 0.5mm 5.5 V +85 °C
RS Stock No. 170-9001
Mfr. Part No.AP2152SG-13
£0.37
Each (On a Reel of 2500)
Units
High Side 2 160mΩ 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. 160-4460
Mfr. Part No.ADP198ACBZ-R7
£0.456
Each (On a Reel of 3000)
Units
High Side 1 90mΩ - Surface Mount WLCSP 4 - 0.99 x 1.065 x 0.37mm 0.99mm 1.065mm 0.37mm 6.5 V +85 °C
RS Stock No. 910-1691
Mfr. Part No.MIC2026-2YM-TR
BrandMicrochip
£0.716
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. 165-8453
Mfr. Part No.AP2553AW6-7
£0.136
Each (On a Reel of 3000)
Units
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
RS Stock No. 662-2451
Mfr. Part No.TPS2052BD
£1.49
Each (In a Pack of 5)
Units
High Side, USB Power Distribution 2 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. 154-7658
Mfr. Part No.LTC4090EDJC#PBF
£3.967
Each (In a Tube of 61)
Units
- 2 215mΩ - Surface Mount DFN 22 0.525A 6 x 3 x 0.75mm 6mm 3mm 0.75mm 5.5 V +85 °C
RS Stock No. 145-9132
Mfr. Part No.MIC2026-2YM
BrandMicrochip
£0.692
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. 921-0414
Mfr. Part No.AP2152SG-13
£0.364
Each (In a Pack of 5)
Units
High Side 2 160mΩ 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. 761-9547
Mfr. Part No.LTC4090EDJC#PBF
£5.98
Each
Units
- 2 215mΩ - Surface Mount DFN 22 0.525A 6 x 3 x 0.75mm 6mm 3mm 0.75mm 5.5 V +85 °C
RS Stock No. 809-9887
Mfr. Part No.ADP198ACBZ-R7
£0.846
Each (On a Tape of 5)
Units
High Side 1 90mΩ - Surface Mount WLCSP 4 - 0.99 x 1.065 x 0.37mm 0.99mm 1.065mm 0.37mm 6.5 V +85 °C
RS Stock No. 165-4277
Mfr. Part No.MIC2026-2YM-TR
BrandMicrochip
£0.618
Each (On a Reel of 2500)
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. 910-1506
Mfr. Part No.MIC2026-2YM
BrandMicrochip
£0.716
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. 163-0710
Mfr. Part No.NCP383LMUAJAATXG
£0.309
Each (On a Reel of 3000)
Units
High Side 2 95Ω 850 mW Surface Mount UDFN 10 3.01A 3 x 3 x 0.5mm 3mm 3mm 0.5mm 5.5 V +85 °C
RS Stock No. 774-1304
Mfr. Part No.TPS2066CDGN
£1.63
Each (In a Bag of 5)
Units
High Side 2 112mΩ Internally Limited Surface Mount MSOP 8 2.1A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +85 °C
RS Stock No. 910-1868
Mfr. Part No.MIC2545A-1YM
BrandMicrochip
£1.145
Each (In a Pack of 2)
Units
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 Stock No. 809-4996
Mfr. Part No.FAN3989MLP8X
£0.86
Each (On a Tape of 5)
Units
- 1 - - Surface Mount MLP 8 1.5A 3 x 3 x 0.75mm 3mm 3mm 0.75mm 20 V +85 °C
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