- 制造厂商：TI
- 产品类别：电源管理
- 技术类目：直流/直流开关稳压器 - 降压稳压器
- 功能描述：适用于笔记本电脑电源的 3V 至 28V、20A 同步 D-CAP 降压控制器
- 点击这里打开及下载TPS51217的技术文档资料
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The TPS51217 is a small-sized single buck controller with adaptive on-time D-CAP? mode. The device is suitable for low output voltage, high current, PC system power rail and similar point-of-load (POL) power supply in digital consumer products. A small package with minimal pin-count saves space on the PCB, while a dedicated EN pin and pre-set frequency minimize design effort required for new designs. The skip-mode at light load condition, strong gate drivers and low-side FET RDS(on) current sensing supports low-loss and high efficiency, over a broad load range. The TRAN pin provides freedom of masking overvoltage protection, undervoltage protection and power-good signal during the transition period of dynamic output voltage change for modern GPU power supply applications. The conversion input voltage which is the high-side FET drain voltage ranges from 3 V to 28 V and the output voltage ranges from 0.6 V to 2.6 V. The device requires an external 5-V supply. The TPS51217 is available in a 10-pin SON package specified from –40°C to 85°C.
- Wide Input Voltage Range: 3 V to 28 V
- Output Voltage Range: 0.6 V to 2.6 V
- Wide Output Load Range: 0 to 20A+
- Built-in 0.5% 0.6 V Reference
- D-CAP Mode with 100-ns Load Step Response
- Adaptive On Time Control Architecture with Fixed 340kHz Operation
- Dynamic Output Voltage Change Capability
- 4700 ppm/°C RDS(on) Current Sensing
- Internal 0.9-ms Voltage Servo Softstart
- Pre-Charged Start-up Capability
- Built-in Output Discharge
- Power Good Output
- Integrated Boost Switch
- Built-in OVP/UVP/OCP
- Thermal Shutdown (Non-latch)
- SON-10 (DSC) Package
- Vin (Min) (V)
- 3
- Vin (Max) (V)
- 28
- Vout (Min) (V)
- 0.6
- Vout (Max) (V)
- 2.6
- Iout (Max) (A)
- 20
- Iq (Typ) (uA)
- 320
- Switching frequency (Min) (kHz)
- 312
- Switching frequency (Max) (kHz)
- 368
- Features
- Dynamic Voltage Scaling, Enable, Light Load Efficiency, Power Good, Pre-Bias Start-Up, Synchronous Rectification
- Regulated outputs (#)
- 1
- Number of phases
- 1
- Rating
- Catalog
TPS51217的完整型号有：TPS51217DSCR、TPS51217DSCT，以下是这些产品的关键参数及官网采购报价：
TPS51217DSCR，工作温度：-40 to 85，封装：WSON (DSC)-10，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS51217DSCR的批量USD价格：1.307（1000+）
TPS51217DSCT，工作温度：-40 to 85，封装：WSON (DSC)-10，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS51217DSCT的批量USD价格：1.568（1000+）
TPS51217 PSpice Transient Model (Rev. B)
PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。借助?PSpice for TI 的设计和仿真环境及其内置的模型库，您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案，然后再进行布局和制造，可缩短产品上市时间并降低开发成本。
在?PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)
