Description

Dual 1 A, 18 V, Synchronous Step-Down Regulator with Fail-Safe Voltage Monitoring Features: Input voltage: 4.5 V to 18 V ±1.0% output accuracy Integrated MOSFET: 110 mΩ/60 mΩ typical Continuous output current: 1 A/1 A Power fail comparator generates warning Power-on reset with programmable delay timer Adjustable voltage monitor for power-down (Channel 2) Watchdog refresh input Dual phase with 180° out-of-phase operation Fixed switching frequency: 300 kHz Internal compensation and soft start Stable with low ESR output ceramic capacitors Precision enable input Power feedback during power-off UVLO, OCP, OVP, and thermal shutdown protection