o 1.2A High-Efficiency 2.2MHz DC-DC Converter 3.7V to 28V Operating Supply Voltage 45V Load-Dump Protection Output Voltage: 3.0V to 5.5V o 600mA High-Efficiency 2.2MHz DC-DC Converter 2.7V to 5.5V Supply Voltage Output Voltage: 1.0V to 3.9V 180° Out-of-Phase Operation Forced-PWM and Auto-PWM Modes o LDO Linear Regulators OUT3: 1.0V to 4.15V at 300mA OUT4: 1.0V to 4.15V at 300mA Separate Inputs for Increased Efficiency o Enable Input o.