MAX25250 Overview
Key Specifications
Description
The MAX25250 is a high-efficiency, four-output PMIC that integrates three DC-DC converters and a high-PSRR LDO, with OV/UV monitoring on all outputs. OUT1 is a 1A high-voltage synchronous step-down converter operating from power over coax or car battery.
Key Features
- a 2.2MHz fixed-frequency PWM mode for better noise immunity and load-transient response
- The high-frequency operation allows for the use of all ceramic capacitors and minimizes external components
- The programmable spread-spectrum frequency modulation minimizes radiated electromagnetic emissions
- Integrated low-RDS(ON) switches improve efficiency at heavy loads and make layout simpler than discrete solutions
- Other features include soft-start, overcurrent, and overtemperature protection
- The MAX25250 is specified for operation over the -40°C to +125°C automotive temperature range
