General Description

The MAX14523A/MAX14523AL/MAX14523B/MAX14523C programmable current-limit switches feature internal current limiting to prevent damage to host devices due to faulty load conditions. These current-limit switches feature a low 70mΩ on-resistance and operate from a +1.7V to +5.5V input voltage range. The current limit is adjustable from 250mA to 1.5A, making these devices ideal for SDIO (secure digital input/output) and other load-switching applications.

Features

♦ Accurate (±10) Overload Current Limit

♦ Adjustable Current-Limit Threshold

♦ Low-Dropout Voltage (70mV at 1A Load Current)

♦ Short-Circuit Protection

♦ Thermal-Shutdown Protection

♦ Reverse-Current Protection

♦ 170µA (typ) Supply Current

♦ Shutdown Reverse Current, 0.6µA (max)

♦ +1.7V to +5.5V Supply Voltage Range

♦ Tiny 8-Pin, 3mm x 3mm, TDFN Package