Product Summary
The LM3526M-L is a Dual Port USB Power Switch. The device provides Universal Serial Bus standard power switch and over-current protection for all host port applications. The dual port LM3526M-L is ideal for Notebook and desktop PC’s that supply power to more than one port. The device accepts an input voltage between 2.7V and 5.5V allowing use as a device-based in-rush current limiter for 3.3V USB peripherals, as well as Root and Self-Powered Hubs at 5.5V. The applications of the LM3526M-L are Universal Serial Bus (USB) Root Hubs including Desktop and Notebook PC, USB Monitor Hubs, Other Self-Powered USB Hub Devices, High Power USB Devices Requiring In-rush Limiting, General Purpose High Side Switch Applications
Parametrics
LM3526M-L absolute maximum ratings: (1)Supply Voltage:-0.3V to 6V; (2)Output Voltage:-0.3V to 6V; (3)Voltage at All Other Pins:-0.3V to 5.5V; (4)Power Dissipation (TA = 25℃):700 mW; (5)TJMAX:160℃.
Features
LM3526M-L features: (1)1 ms fault flag delay filters Hot-Plug events; (2)Smooth turn-on eliminates in-rush induced voltage drop; (3)UL recognized component: REF# 205202; (4)1A nominal short circuit output current protects PC power supplies; (5)Thermal shutdown protects device in direct short condition; (6)500mA minimum continuous load current; (7)Small SO-8 package minimizes board space; (8)2.7V to 5.5V input voltage range; (9)140 mΩ Max. switch resistance; (10)1 μA Max. standby current; (11)200 μA Max. operating current; (12)Under-voltage lockout (UVLO).
Diagrams
Image | Part No | Mfg | Description | Pricing (USD) |
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LM3526M-L |
National Semiconductor (TI) |
Power Switch ICs - USB |
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LM3526M-L/NOPB |
National Semiconductor (TI) |
Power Switch ICs - USB DUAL PORT USB PWR SWITCH |
Data Sheet |
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