控制器 | NCP5215
概览
The NCP5215, a high-efficiency and fast-transient-response dual-channel buck controller, provides a multifunctional power solution for notebook power system. 180o interleaved operation function between the two channels has capabilities of reducing the common input capacitor requirement and improving noise immunity. Adaptive-Voltage-Positioning (AVP) control reduces the requirement of output filter capacitors. Programmable power-saving operation ensures high efficiency over entire load range. Input feedforward voltage-mode control is employed to deal with wide input voltage range. Transient-Response-Enhancement (TRE) control for the both channels enables fast transient response.
- CPU Chipset Power Supplies
- Notebook Computers
- Wide Input Voltage Range: 4.5 V to 24 V
- Adjustable Output Voltage Range: 0.8 V to 3.0 V
- Selectable Nominal Fixed Switching Frequency: 200 kHz, 300 kHz, and 400 kHz
- 180° Interleaved Operation Function between the Two Channels
- Programmable AdaptiveVoltagePositioning (AVP) Operation
- Programmable TransientResponseEnhancement (TRE) Control
- Power Saving Operation under Light Load Condition
- Input Feedforward Voltage Mode Control
- Resistive or Inductors DCR Current Sensing
- 1% Internal 0.8 V Reference
- External SoftStart Operation
- Output Discharge and SoftStop
- Built-in Gate Drivers
- Input Supplies Undervoltage Lockout
- Output Overvoltage and Undervoltage Protections
- Accurate Overcurrent Protection
- Thermal Shutdown Protection
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