General Description

The MAX16023/MAX16024 low-power battery-backup circuits with a regulated output are capable of delivering up to 100mA output current. The MAX16023/MAX16024 include a low-dropout regulator, a microprocessor (µP) reset circuit, and a battery switchover circuit. Additional available features include a manual reset, a power-fail comparator, and a battery-on indicator. These devices reduce the number of external components to minimize board space and improve reliability.

Features

♦ System Monitoring for 5V, 3.3V, 3V, 2.5V, or 1.8V Power-Supply Voltages

♦ 100mA Low-Dropout Regulator

♦ Factory-Trimmed and Adjustable Output Voltages

♦ 1.53V to 5.5V Operating Voltage Range

♦ Low-Power Consumption: 4µA (typ)

♦ Power-Fail Comparators for Monitoring Voltages Down to 0.6V

♦ Battery-On Indicator

♦ Battery Freshness Seal

♦ On-Board Gating of CE Signals, 1.5ns Propagation Delay (MAX16024)

♦ Debounced Manual-Reset Input

♦ 145ms (min) Reset Timeout Period

♦ Tiny 8-Pin and 10-Pin TDFN Packages

♦ UL® Certified to Conform to IEC 60950-1

Applications

    Main/Backup Power for RTCs/SRAM

    Industrial Controls

    GPS Systems

    Set-Top Boxes

    Point-of-Sale Equipment

    Portable/Battery Equipment