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庫存編號 423-163
製造零件編號TPS2042BD
TWD58.20
/個 (每包:5個)
單位
High Side, USB Power Distribution 4 49mΩ 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庫存編號 517-1078
製造零件編號TPS2042AD
TWD91.00
/個 (每包:5個)
單位
High Side, USB Power Distribution 4 80mΩ 725 mW Surface Mount SOIC 8 0.9A 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 5.5 V +85 °C
RS庫存編號 179-1649
製造零件編號TPS2042AD
TWD107.30
毎管:75 個
單位
High Side, USB Power Distribution 4 80mΩ 725 mW Surface Mount SOIC 8 0.9A 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 5.5 V +85 °C
RS庫存編號 923-2461
製造零件編號TPS2042BD
TWD37.40
毎管:75 個
單位
High Side, USB Power Distribution 4 49mΩ 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庫存編號 662-2460
製造零件編號TPS2052BDGN
TWD61.20
/個 (每包:5個)
單位
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庫存編號 910-1600
製造零件編號MIC2506YM
BrandMicrochip
TWD112.00
/個 (每包:2個)
單位
High Side, USB Power Distribution 4 75mΩ Internally Limited Surface Mount SOIC 8 2A 4.93 x 3.94 x 1.48mm 4.93mm 3.94mm 1.48mm 7.5 V +85 °C
RS庫存編號 517-1034
製造零件編號TPS2022D
TWD79.80
/個 (每包:5個)
單位
High Side, USB Power Distribution 4 33mΩ 725 mW Surface Mount SOIC 8 1.5A 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 5.5 V +85 °C
RS庫存編號 162-4888
製造零件編號TPS2022D
TWD50.60
毎管:75 個
單位
High Side, USB Power Distribution 4 33mΩ 725 mW Surface Mount SOIC 8 1.5A 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 5.5 V +85 °C
RS庫存編號 823-3185
製造零件編號AP2411MP-13
TWD6.40
/個 (每包:25個)
單位
High Side 1 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庫存編號 165-4129
製造零件編號MIC2505-1YM
BrandMicrochip
TWD46.50
毎管:95 個
單位
High Side, USB Power Distribution - - Internally Limited Surface Mount SOIC 8 4A 4.93 x 3.94 x 1.48mm 4.93mm 3.94mm 1.48mm 7.5 V +85 °C
RS庫存編號 146-0314
製造零件編號MIC2506YM
BrandMicrochip
TWD73.70
毎管:95 個
單位
High Side, USB Power Distribution 4 75mΩ Internally Limited Surface Mount SOIC 8 2A 4.93 x 3.94 x 1.48mm 4.93mm 3.94mm 1.48mm 7.5 V +85 °C
RS庫存編號 122-3270
製造零件編號AP2411MP-13
TWD3.80
個 (在毎卷:2500)
單位
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庫存編號 145-9132
製造零件編號MIC2026-2YM
BrandMicrochip
TWD20.30
毎管:95 個
單位
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庫存編號 910-1773
製造零件編號MIC2505-1YM
BrandMicrochip
TWD59.80
/個 (每包:5個)
單位
High Side, USB Power Distribution - - Internally Limited Surface Mount SOIC 8 4A 4.93 x 3.94 x 1.48mm 4.93mm 3.94mm 1.48mm 7.5 V +85 °C
RS庫存編號 145-6749
製造零件編號TPS2052BDGN
TWD36.80
毎管:80 個
單位
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庫存編號 910-1691
製造零件編號MIC2026-2YM-TR
BrandMicrochip
TWD26.40
/個 (每包:10個)
單位
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庫存編號 165-4277
製造零件編號MIC2026-2YM-TR
BrandMicrochip
TWD21.80
個 (在毎卷:2500)
單位
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庫存編號 910-1506
製造零件編號MIC2026-2YM
BrandMicrochip
TWD32.60
/個 (每包:10個)
單位
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庫存編號 910-1830
製造零件編號MIC2076-1YM
BrandMicrochip
TWD41.00
/個 (每包:5個)
單位
High Side, USB Power Distribution - - 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庫存編號 921-0433
製造零件編號AP2182ASG-13
TWD21.50
/個 (每包:10個)
單位
Low Side 2 130mΩ Internally Limited Surface Mount SOIC 8 2.4A 4.95 x 3.95 x 1.5mm 4.95mm 3.95mm 1.5mm 5.5 V +85 °C