Description

150V VIN and VOUT Synchronous 4-Switch Buck-Boost Controller Features: 4-Switch Current Mode Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT Wide VIN Range: 4.5V to 150V Wide Output Voltage Range: 1.2V ≤ VOUT ≤ 150V Synchronous Rectification: Up to 99% Efficiency ±1% 1.2V Voltage Reference Input or Output Average Current Limit On-Board LDO or External NMOS LDO for DRVCC 36V EXTVCC LDO Powers Drivers Programmable 6V to 10V DRVCC Optimizes Efficiency No Top FET Refresh Noise in Boost or Buck Mode VOUT Disconnected from VIN During Shutdown Phase-Lockable Fixed Frequency (50kHz to 600kHz) No Reverse Current During Start-Up Power Good Output Voltage Monitor 150V Rated RUN Pin with Accurate Turn-On Threshold Programmable Input Overvoltage Lockout Thermally Enhanced FE38 TSSOP Package Modified for High Voltage Operation