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 69 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. 122-3267
Mfr. Part No.AP2111SG-13
R 3.037
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
RS stock no. 822-8830
Mfr. Part No.AP2401MP-13
R 4.747
Each (In a Pack of 25)
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. 823-3176
Mfr. Part No.AP2111SG-13
R 3.097
Each (In a Pack of 20)
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
RS stock no. 169-7369
Mfr. Part No.AP2401MP-13
R 1.895
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. 122-2325
Mfr. Part No.AP2331SA-7
R 1.969
Each (On a Reel of 3000)
units
High Side 1 350mΩ - Surface Mount SOT-23 3 0.5A 3 x 1.4 x 1.1mm 3mm 1.4mm 1.1mm 5.2 V +85 °C
RS stock no. 822-8821
Mfr. Part No.AP2331SA-7
R 5.638
Each (In a Pack of 25)
units
High Side 1 350mΩ Internally Limited Surface Mount SOT-23 3 0.5A 3 x 1.4 x 1.1mm 3mm 1.4mm 1.1mm 5.2 V +85 °C
RS stock no. 165-8346
Mfr. Part No.AP2511MP-13
R 2.092
Each (On a Reel of 2500)
units
High Side 2 135mΩ Internally Limited Surface Mount MSOP 8EP 8 4.6A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +85 °C
RS stock no. 822-8833
Mfr. Part No.AP2401S-13
R 1.514
Each (In a Pack of 25)
units
High Side 2 135mΩ Internally Limited Surface Mount SOIC 8 2.85A 4.95 x 3.95 x 1.5mm 4.95mm 3.95mm 1.5mm 5.5 V +85 °C
RS stock no. 169-7370
Mfr. Part No.AP2401S-13
R 1.483
Each (On a Reel of 2500)
units
High Side 2 135mΩ Internally Limited Surface Mount SOIC 8 2.85A 4.95 x 3.95 x 1.5mm 4.95mm 3.95mm 1.5mm 5.5 V +85 °C
RS stock no. 921-0486
Mfr. Part No.AP2511MP-13
R 5.176
Each (In a Pack of 30)
units
High Side 2 135mΩ Internally Limited Surface Mount MSOP 8EP 8 4.6A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +85 °C
RS stock no. 921-0445
Mfr. Part No.AP2191SG-13
R 7.075
Each (In a Pack of 10)
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. 146-4709
Mfr. Part No.AP22814BSN-7
R 1.926
Each (On a Reel of 3000)
units
High Side 1 65mΩ - Surface Mount U-DFN2020 5 + Tab 3.8A 2.07 x 2.07 x 0.58mm 2.07mm 2.07mm 0.58mm 2.4 V +85 °C
RS stock no. 169-7472
Mfr. Part No.AP2142SG-13
R 7.103
Each (On a Reel of 2500)
units
High Side 2 160mΩ Internally Limited Surface Mount SOP 8 1A 4.95 x 3.95 x 1.5mm 4.95mm 3.95mm 1.5mm 5.5 V +85 °C
RS stock no. 146-4711
Mfr. Part No.AP22814AM8-13
R 1.74
Each (On a Reel of 2500)
units
High Side 2 65mΩ - Surface Mount MSOP 8 3.8A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 2.4 V +85 °C
RS stock no. 921-0492
Mfr. Part No.AP2553AW6-7
R 5.788
Each (In a Pack of 10)
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. 165-8345
Mfr. Part No.AP2501M8-13
R 2.092
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. 146-4793
Mfr. Part No.AP22814AM8-13
R 2.38
Each (In a Pack of 10)
units
High Side 2 65mΩ - Surface Mount MSOP 8 3.8A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 2.4 V +85 °C
RS stock no. 146-4797
Mfr. Part No.AP22804BW5-7
R 10.102
Each (In a Pack of 10)
units
High Side 1 65mΩ - Surface Mount SOT25 5 3.3A 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm 2.4 V +85 °C
RS stock no. 165-8542
Mfr. Part No.AP2191DWG-7
R 1.96
Each (On a Reel of 3000)
units
High Side 1 115mΩ Internally Limited Surface Mount SOT-25 5 2.6A 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm 5.5 V +85 °C
RS stock no. 169-7367
Mfr. Part No.AP2191WG-7
R 6.597
Each (On a Reel of 3000)
units
High Side 1 170mΩ Internally Limited Surface Mount SOT-25 5 2.6A 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm 5.5 V +85 °C