General Description

The MAX6330/MAX6331 combine a precision shunt regulator with a power-on reset function in a single SOT23-3 package. They offer a low-cost method of operating small microprocessor (µP)-based systems from high-voltage sources, while simultaneously protecting µPs from power-up, power-down, and brownout conditions.

Features

♦100µA to 50mA Shunt Current Range

♦Low Cost

♦3-Pin SOT23 Package

♦±1.5 Tolerance on Output Voltage

♦Three Shunt Voltages Available: 5V, 3.3V, 3.0V

♦Precision Power-On Reset Threshold:

  1.5 Tolerance Available with Either RESET (MAX6331) or RESET (MAX6330) Outputs

♦140ms Reset Timeout Period—No External Components Required

Applications

Controllers

Household Appliances

Intelligent Instruments

Critical µP and µC Power Monitoring

Portable/Size-Sensitive Equipment

Automotive