NCP5217: Synchronous Buck Controller, Single
The NCP5217A is a synchronous step-down controller for high performance battery-power systems. The NCP5217A includes a high efficiency PWM controller. A pin is provided to enable or disable force PWM mode of operation. An internal power good voltage monitor tracks the SMPS output. NCP5217A also features soft-start sequence, UVLO for VCC and switcher, overvoltage protection, overcurrent protection, undervoltage protection and thermal shutdown. The IC is packaged in QFN-14.
特性- 0.8% accuracy 0.8 V reference
- 4.5 V to 27 V battery/adapter voltage range
- Selectable power saving mode/force PWM mode
- Lossless inductor current sensing
- Programmable adaptive voltage positioning (AVP)
- Input supply feedforward control
- Internal Soft-Start
- Integrated output discharge (Soft Stop)
- Built-in adaptive gate driver
- PGOOD indication
- Overvoltage, undervoltage and overcurrent protection
- Thermal shutdown
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应用注释 (1)
封装图纸 (1)
仿真模型 (1)
数据表 (1)
评估板文档 (4)
评估板与开发工具
| 产品 | 状况 | Compliance | 简短说明 |
|---|
| NCP5217AGEVB | Active | Pb-free | Synchronous Step-Down Controller Evaluation Board |
产品订购型号
| 产品 | 状况 | Compliance | 封装 | MSL* | 容器 | 预算价格 (1千个数量的单价） |
|---|
| NCP5217AMNTXG | Active | Pb-free
Halide free | QFN-14 | 485AL | 1 | Tape and Reel | 3000 | $0.3067 |
订购产品技术参数
| Product | Topology | Phases | Control Mode | VCC Min (V) | VCC Max (V) | fSW Typ (kHz) | tres Typ (ns) |
|---|
| NCP5217AMNTXG | Step-Down | 1 | Current/Voltage Mode | 4.5 | 27 | 300 | |
