Low-Cost, ЗА, 4.5V to 28V Input, 350kHz, PWM
Step-Down DC-DC Regulator with Internal Switches

Features
♦ Up to ЗА of Continuous Output Current
♦ ±1% Output Accuracy Over Temperature
♦ 4.5V to 28V Input Voltage Range
♦ Adjustable Output Voltage Range from 0.606V to 0.9 x Vin
♦ Internal 170mii Rds-ON High-Side and 105mi2 RDS-ON Low-Side Power Switches
♦ Fixed 350kHz Switching Frequency
♦ Up to 93% Efficiency
♦ Cycle-By-Cycle Overcurrent Protection
♦ Programmable Soft-Start
♦ Stable with Low-ESR Ceramic Output Capacitors
♦ Safe Startup into Prebiased Output
♦ Enable Input and Power-Good Output
♦ Fully Protected Against Overcurrent and Overtemperature
♦ Vdd LDO Undervoltage Lockout
♦ Space-Saving, Thermally Enhanced, 3mm x 3mm Package