Description

150V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller with PassThru Features: Wide VIN Range: 4.5V to 140V (150V Abs Max) Wide Output Voltage Range: 1V ≤ VOUT ≤ 60V Low Operating IQ: 16μA (48VIN to 12VOUT and 3.3VOUT) Adjustable Gate Drive Level Up to 10V Optional Spread Spectrum Operation Very Low Dropout: 100% Duty Cycle Operation Low IQ in Dropout: 78µA (One Channel On) RSENSE or Inductor DCR Current Sensing Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise Phase-Lockable Frequency (75kHz to 720kHz) Programmable Fixed Frequency (50kHz to 750kHz) Selectable Continuous, Pulse-Skipping, or Low Ripple Burst Mode® Operation at Light Loads Onboard LDO or External NMOS LDO for DRVCC EXTVCC LDO Powers Drivers from VOUT Programmable Input Overvoltage Lockout 48-Lead (7mm × 7mm) eLQFP Package