onsemi NCP81274
The NCP81274 is a multiphase synchronous controller optimized for new generation computing and graphics processors. The device is capable of driving up to 8 phases and incorporates differential voltage and phase current sensing, adaptive voltage positioning and PWM_VID interface to provide and accurately regulated power for computer or graphic controllers. The integrated power saving interface (PSI) allows for the processors to set the controller in one of three modes, i.e.| Part No. | NCP81274 |
|---|---|
| Datasheet | NCP81274 Download |
| Manufacturer |  onsemi |
| Description | 8/7/6/5/4/3/2/1 Phase Buck Controller |
| Buy | Stock & Price |
FEATURES
● Compliant with NVIDIA® OVR4+ Specifications● Supports Up to 8 Phases
● 4.5 V to 20 V Supply Voltage Range
● 250 kHz to 1.2 MHz Switching Frequency (8 Phase)
● Power Good Output
● Under Voltage Protection (UVP)
● Over Voltage Protection (OVP)
● Over Current Protection (OCP)
● Per Phase Over Current Protection
● Startup into Pre-Charged Loads while Avoiding False OVP
● Configurable Adaptive Voltage Positioning (AVP)
● High Performance Operational Error Amplifier
● True Differential Current Balancing Sense Amplifiers for Each Phase
● Phase-to-Phase Dynamic Current Balancing
● Current Mode Dual Edge Modulation for Fast Initial Response to Transient Loading
● Power Saving Interface (PSI)
● Automatic Phase Shedding with User Settable Thresholds
● PWM_VID and I2C Control Interface
● Compact 40 Pin QFN Package (5 × 5 mm Body, 0.4 mm Pitch)
● This Device is Pb-Free and is RoHS Compliant Typical
APPLICATIONS
● GPU and CPU Power● Graphic Cards
● Desktop and Notebook
APPLICATIONS
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