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NCP3218
7-Bit Programmable, 3-Phase, Mobile CPU Synchronous Buck Controller
NCP3218
7-Bit Programmable, 3-Phase, Mobile CPU Synchronous Buck Controller
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NCP3218 數據表
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詳細說明
GENERAL DESCRIPTIONThe ADP3212/NCP3218 is a highly efficient, multiphase, synchronous buck switching regulator controller. With its integrated drivers, the ADP3212/NCP3218 is optimized for converting the notebook battery voltage into the core supply voltage required by high performance Intel processors. An internal 7-bit DAC is used to read a VID code directly from the processor and to set the CPU core voltage to a value within the range of 0.3 V to 1.5 V. The ADP3212/NCP3218 is programmable for 1-, 2-, or 3-phase operation. The output signals ensure interleaved 2- or 3-phase operation.The ADP3212/NCP3218 uses a multimode architecture run at a programmable switching frequency and optimized for efficiency depending on the output current requirement. The ADP3212/NCP3218 switches between single- and multi-phase operation to maximize efficiency with all load conditions. The chip includes a programmable load line slope function to adjust the output voltage as a function of the load current so that the core voltage is always optimally positioned for a load transient. The ADP3212/NCP3218 also provides accurate and reliable short circuit protection, adjustable current limiting, and a delayed power-good output. The IC supports on-the-fly output voltage changes requested by the CPU.The ADP3212/NCP3218 are specified over the extended commercial temperature range of -40°C to 100°C. The ADP3212 is available in a 48-lead QFN 7x7mm 0.5 mm pitch package. The NCP3218 is available in a 48-lead QFN 6x6mm 0.4 mm pitch package. Except for the packages, the ADP3212 and NCP3218 are identical. ADP3212 and NCP3218 are Halogen Free, Pb-Free and RoHS compliant. FEATURES Single-chip solution Fully compatible with the Intel® IMVP-6.5™ specifications Selectable 1- , 2-, or 3-phase operation with up to 1 MHz per phase switching frequency Phase 1 and Phase 2 Integrated MOSFET drivers Input Voltage Range of 3.3 V to 22 V Guaranteed ±8 mV worst-case differentially sensed core voltage error over temperature Automatic power-saving mode maximizes efficiency with light load during deeper sleep operation Active current balancing between output phases Independent current limit and load line setting inputs for additional design flexibility Built-in power-good blanking supports voltage identification (VID) on-the-fly transients 7-bit, digitally programmable DAC with 0.3 V to 1.5 V output Short-circuit protection with programmable latch-off delay Clock enable output
主要特徵
- Single-chip solution
- Fully compatible with the Intel® IMVP-6.5™ specifications
- Selectable 1- , 2-, or 3-phase operation with up to 1 MHz per
- phase switching frequency
- Phase 1 and Phase 2 Integrated MOSFET drivers
- Input Voltage Range of 3.3 V to 22 V
- Guaranteed ±8 mV worst-case differentially sensed core
- voltage error over temperature
- Automatic power-saving mode maximizes efficiency with
- light load during deeper sleep operation
- Active current balancing between output phases
- Independent current limit and load line setting inputs for
- additional design flexibility
- Built-in power-good blanking supports
- voltage identification (VID) on-the-fly transients
- 7-bit, digitally programmable DAC with 0.3 V to 1.5 V output
- Short-circuit protection with programmable latch-off delay
- Clock enable output
- voltage is stable
- Output power or current monitor options
- 48-lead QFN 6x6mm (NCP3218)
- 48-lead QFN 7x7mm (ADP3212)
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| Manufacturer | ON Semiconductor | Product Category ! | Special Purpose Voltage Regulators |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
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