Product Summary

The LM3526MX-H+ is a Bus standard power switch which provides Universal Serial Bus standard power switch and over-current protection for all host port applications.The dual port device is ideal for Notebook and desktop PCs that supply power to more than one port. The LM3526MX-H+ 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 LM3526MX-H+ are: USB Monitor Hubs, Other Self-Powered USB Hub Devices, High Power USB Devices, Requiring In-rush Limiting, General Purpose High Side Switch Applications.

Parametrics

LM3526MX-H+ 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℃)(Note 2): 700 mW; (5)TJMAX (Note 2): 160℃; (6)Supply Voltage Range: 2.7V to 5.5V; (7)Operating Ambient Range: 40℃ to 85℃; (8)Operating Junction Temperature Range: 40℃ to 125℃; (9)Storage Temperature Range: 65℃ to +150℃.

Features

LM3526MX-H+ features:(1)1 ms fault flag delay filters Hot-Plug events; (2)Smooth turn-oeliminates in-rush induced voltage drop; (3)UL recognized component: REF# 205202; (4)1A nominal short circuit output current protects PC power supplies; (5)Thermal shutdowprotects device idirect 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 mW Max. switch resistance; (10)1 μA Max. standby current; (11)200 μA Max. operating current; (12)Under-voltage lockout (UVLO).

Diagrams

LM3526MX-H+ operating circuit

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