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. 910-1868
Mfr. Part No.MIC2545A-1YM
BrandMicrochip
£2.66
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. 145-9400
Mfr. Part No.MIC2545A-1YM
BrandMicrochip
£2.21
Each (In a Tube of 95)
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. 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. 922-4738
Mfr. Part No.TPS2052BD
£1.266
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. 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. 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. 145-9132
Mfr. Part No.MIC2026-2YM
BrandMicrochip
£0.65
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. 145-7721
Mfr. Part No.TPS2042BDGN
£1.443
Each (In a Tube of 80)
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. 165-8523
Mfr. Part No.AP2171DM8G-13
£0.085
Each (On a Reel of 2500)
Units
High Side 2 115mΩ Internally Limited Surface Mount MSOP 8 1.9A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +85 °C
RS Stock No. 165-8345
Mfr. Part No.AP2501M8-13
£0.11
Each (On a Reel of 2500)
Units
Low Side 2 135mΩ Internally Limited Surface Mount MSOP 8 4.6A 3.1 x 3.1 x 0.8mm 3.1mm 3.1mm 0.8mm 5.5 V +85 °C
RS Stock No. 921-0473
Mfr. Part No.AP2501M8-13
£0.272
Each (In a Pack of 30)
Units
Low Side 2 135mΩ Internally Limited Surface Mount MSOP 8 4.6A 3.1 x 3.1 x 0.8mm 3.1mm 3.1mm 0.8mm 5.5 V +85 °C
RS Stock No. 662-2502
Mfr. Part No.TPS2148IDGN
£2.216
Each (In a Pack of 5)
Units
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 Stock No. 700-0735
Mfr. Part No.BD6510F-E2
BrandROHM
£1.99
Each (In a Pack of 2)
Units
USB High Side Power 4 100mΩ 560 mW Surface Mount SOP 8 2A 5 x 4.4 x 1.5mm 5mm 4.4mm 1.5mm - -
RS Stock No. 169-0426
Mfr. Part No.BD6510F-E2
BrandROHM
£0.89
Each (On a Reel of 2500)
Units
USB High Side Power 4 100mΩ 560 mW Surface Mount SOP 8 2A 5 x 4.4 x 1.5mm 5mm 4.4mm 1.5mm - -
RS Stock No. 162-7138
Mfr. Part No.TPS2041BDGN
£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. 517-1056
Mfr. Part No.TPS2034D
£2.216
Each (In a Pack of 5)
Units
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 Stock No. 841-7529
Mfr. Part No.UCS1003-2-BP
BrandMicrochip
£0.908
Each (In a Pack of 5)
Units
- 2 55mΩ 2.19 W Surface Mount QFN 20 3000mA 4.1 x 4.1 x 0.9mm 4.1mm 4.1mm 0.9mm 5.5 V +125 °C
RS Stock No. 169-7369
Mfr. Part No.AP2401MP-13
£0.10
Each (On a Reel of 2500)
Units
High Side 2 135mΩ Internally Limited Surface Mount MSOP 8 2.85A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +85 °C
RS Stock No. 179-1647
Mfr. Part No.TPS2034D
£2.032
Each (In a Tube of 75)
Units
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 Stock No. 122-3267
Mfr. Part No.AP2111SG-13
£0.159
Each (On a Reel of 2500)
Units
High Side 2 170mΩ Internally Limited Surface Mount SOIC 8 2.8A 4.95 x 3.95 x 1.5mm 4.95mm 3.95mm 1.5mm 5.5 V +85 °C
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