MAX6877 Overview
The MAX6877/MAX6878/MAX6879 multivoltage power trackers/sequencers/supervisors monitor up to three system voltages and provide proper power-up and power-down control for systems requiring voltage tracking or sequencing. These devices ensure controlled voltage tracking within a specified range or sequencing in the proper order as system power supplies are enabled. The MAX6877/MAX6878/MAX6879 generate all required voltages and timing to control up to three external n-channel pass FETs for the OUT1/OUT2/ OUT3 supply voltages (see the Selector Guide for different
MAX6877 Key Features
- Pin-Selectable Tracking or Sequencing Control for Up to Three Supply Voltages
- Capacitor-Adjustable Power-Up/Down Tracking Slew Rate
- Capacitor-Adjustable Power-Up Sequencing Delay
- Internal Charge Pumps to Enhance External n-Channel FETs
- Capacitor-Adjustable Timeout Period Power-Good Output (MAX6877/MAX6878)
- Adjustable Undervoltage Lockout or Logic-Enable Input
- Internal 100Ω Pulldown for Each Output to Discharge Capacitive Load Quickly
- 0.5V to 5.5V Nominal IN_/OUT_ Range
- 2.7V to 5.5V Operating Voltage Range
- Immune to Short Voltage Transients