General Description

The MIC2776 is a power supply supervisor which provides under-voltage monitoring and power-on reset generation in a compact 5-pin SOT package. Features include an adjustable under-voltage detector, a delay-generator, a manual reset input, and a choice of active-high, active-low, or open-drain active-low reset output. The user-adjustable monitoring input is compared against a 300mV reference. This low reference voltage allows monitoring voltages lower than those supported by previous supervisor ICs.

Features

• User-adjustable input can monitor supplies as low as 0.3V

• ±1.5 threshold accuracy

• Separate VDD input

• Generates power-on reset pulse (140ms min.)

• Manual reset input

• Choice of active-high, active-low or open-drain active-low reset output

• Inputs can be pulled above VDD (7V abs. max.)

• Open-drain output can be pulled above VDD (7V abs. max.)

• Ultra-low supply current, 3.0µA typical

• Rejects brief input transients

• IttyBitty™ SOT-23-5 package

Applications

• Monitoring processor, ASIC, or FPGA core voltage

• Computer systems

• PDAs/Hand-held PCs

• Embedded controllers

• Telecommunications systems

• Power supplies

• Wireless / cellular systems

• Networking hardware