GENERAL DESCRIPTION
The MAX15003 is optimized for high-performance, small-size power management solutions. The options of coincident tracking, ratiometric tracking, and output sequencing allow the tailoring of the powerup/power-down sequence depending on the system requirements. Each of the MAX15003 PWM sections utilizes a voltage-mode control scheme with external compensation allowing for good noise immunity and maximum flexibility with a wide selection of inductor values and capacitor types. Each PWM section operates at the same, fixed switching frequency that is programmable from 200kHz to 2.2MHz and can be synchronized to an external clock signal using the SYNC input. Each converter operating at up to 2.2MHz with 120° out-of-phase, increases the input capacitor ripple frequency up to 6.6MHz, thereby reducing the RMS input ripple current and the size of the input bypass capacitor requirement significantly. The MAX15003 includes internal input undervoltage lockout with hysteresis, digital soft-start/soft-stop for glitch-free power-up and power-down of each converter.
Maxim Integrated
