MAX6338BUB+

The MAX6338BUB+ is a quad voltage monitor IC designed by Analog Devices, offering the capability to monitor up to four power supply voltages without requiring external components. This device is suitable for a wide range of applications including telecommunications, high-end printers, desktop and notebook computers, data storage equipment, networking equipment, industrial equipment, and set-top boxes.

Key features include a low supply current of 25µA (typical), four independent open-drain, active-low outputs, and a broad operating supply voltage range of +2.5V to +5.5V. The operating temperature range is guaranteed from -40°C to +85°C. The MAX6338BUB+ is available in a compact 10-pin µMAX package, making it ideal for space-constrained designs. It supports monitoring of specific voltages like 5.0V, 3.3V, 3.0V, 2.5V, 1.8V, and -5.0V, with options for 5% or 10% tolerance, or user-adjustable settings.

This supervisor IC ensures accurate trip thresholds across its operating temperature range due to an internal bandgap reference. An internal undervoltage lockout circuit forces all digital outputs low when VCC drops below the minimum operating voltage. The outputs feature weak internal pull-ups to VCC, allowing for wire-ORed connections.