NCP81228 Description
8 + 2 Phase Output Controller with SVID Interface for Notebook and Ultrabook CPU Applications NCP81228 The NCP81228 is a dual rail, eight + two phase buck solution optimized for Intel IMVP8 CPUs. The multi−phase rail control system is based on Dual−Edge pulse−width modulation (PWM) bined with DCR current sensing. This provides an ultra−fast initial response to dynamic load events and reduced system cost.
NCP81228 Key Features
- Vin Range 4.5 V to 21 V
- Startup into Pre-Charged Loads While Avoiding False OVP
- Digital Soft Start Ramp
- Adjustable Vboot
- High Impedance Differential Output Voltage Amplifier
- Dynamic Reference Injection
- Programmable Output Voltage Slew Rates
- Dynamic VID Feed-Forward
- Differential Current Sense Amplifiers for Each Phase
- Programmable Adaptive Voltage Positioning (AVP)