NCP81148 Overview
NCP81148 Advance Information Synchronous Buck Controller with Auto Power Saving Mode and Built-In LDO NCP81148 is a dual synchronous buck controller that is optimized for converting the battery voltage or adaptor voltage into multiple power rails required in desktop and notebook system. NCP81148 consists of two buck switching controllers with fixed 5.0 V output on channel 2, 3.3 V on channel 1 and two on−board LDOs...
NCP81148 Key Features
- Wide Input Voltage Range: from 5.5 V to 28 V
- Built-in 5 V / 60 mA LDO
- Built-in selectable 3.3 V or 12 V / 10 mA LDO
- Three Selectable Fixed Frequency 300 KHz, 400 KHz or 600 KHz
- Selected Power-Saving Mode/Forced PWM Mode
- Transient-Response-Enhancement (TRE) Control
- Input Supply Voltage Feed Forward Control
- Resistive or Lossless Inductor’s DCR Current Sensing
- Over-Temperature Protection
- Internal Fixed 8.5 ms Soft-Start