7A load switch with 40% reduced PCB footprint

8th January 2015

Micrel, Inc.

Barney Scott

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Datasheet

A controlled power up sequence with ramp control is often a necessary feature in applications such as industrial computing, server boards, medical devices, tablets, notebooks, and solid state drives. The MIC95410 7A load switch from Micrel, in a compact 1.2x2.0mm package, boasts this capability and can be used for systems requiring power partitioning.

This device operates from a 2.7-9V bus rail and can switch on a load voltage from 0.5 to 5.5V. The extremely low 6.6mΩ ON resistance of the integrated FET minimises power dissipation and reduces voltage drop across the switch, allowing greater voltage accuracy to the circuit downstream, especially critical in low voltage applications. Other features include a control input for sequencing and an optional capacitor that allows the user to adjust the output slew rate. The MIC95410 is specified from -40 to +125°C.

Load switches are used in a wide variety of applications to selectively shut down idle subsystems or board sections in power-saving modes. “This minimises equipment power consumption wherein reactivation of those subsystems requires a controlled switch turn-on to avoid perturbation on power rails,” stated Brian Hedayati, Vice President of Marketing, High Performance Linear and Power Solutions, Micrel. “To address this issue, Micrel has deployed its patented MOSFET technology with advanced packaging technology, and now offers one of the industry's smallest 7A load switches on the market, reducing more than 40% of required board space.”

The MIC95410 is available in volume quantity with 1,000 quantities pricing starting at $0.45.