General Description

The MAX4789–MAX4794 family of switches feature internal current limiting to prevent damage to host devices due to faulty load conditions. These analog switches have a low 0.2Ω on-resistance and operate from 2.3V to 5.5V input voltage range. They are available with guaranteed 200mA, 250mA, and 300mA current limits, making them ideal for SDIO and other load switching applications.

Features

♦ Guaranteed Current Limit: 200mA, 250mA, 300mA

♦ Thermal-Shutdown Protection

♦ Reverse Current Protection

♦ 0.2Ω On-Resistance

♦ 14ms Guaranteed Blanking Time

♦ FLAG Function (MAX4789/MAX4791/MAX4793)

♦ 80µA Supply Current

♦ 8µA Latch-Off Current

   (MAX4789/MAX4791/MAX4793)

♦ 0.01µA Shutdown Current

♦ 2.3V to 5.5V Supply Range

♦ Undervoltage Lockout

♦ Fast Current-Limit Response Time (5µs)

♦ TDFN and SOT23/SOT143 Packages

Applications

  PDAs and Palmtop Devices

  Cell Phones

  GPS Systems

  Handheld Devices

  SDIO