Ultra-wide high-voltage input: 4.5V-100V input voltage, 3A continuous output current, adjustable 0.8V-35V output, 8μA ultra-low quiescent current, low light-load power consumption, suitable for high-voltage power supply scenarios. QFN-19 (3×5mm) compact surface-mount package, integrates high-side and low-side MOSFETs, internal loop compensation, reduces external components, simplifies PCB layout, and saves board space (MPS). 400kHz fixed switching frequency, supports PSM power-saving mode / FCCM forced continuous mode, selectable low-power or low-ripple operation modes to meet different design requirements (MPS). Full protection mechanisms: integrated soft-start, over-current protection (OCP), over-voltage protection (OVP), over-temperature protection (OTP), paired with a PG (power good) indicator pin to enhance overall power supply reliability. Wide application fields: industrial control, communication equipment, energy storage BMS, high-voltage instrumentation; datasheet available for download.