TPS51218 - 用于笔记本电源的具有 DCAP? 模式的 3V 至 28V 输入、 20A 同步降压控制器

TPS51218是TI德州仪器公司的一款控制器（外部开关）产品，TPS51218是用于笔记本电源的具有 DCAP? 模式的 3V 至 28V 输入、 20A 同步降压控制器，本站介绍了TPS51218的封装应用图解、特点和优点、功能等，并给出了与TPS51218相关的TI元器件型号供参考。

TPS51218 - 用于笔记本电源的具有 DCAP? 模式的 3V 至 28V 输入、 20A 同步降压控制器 - 控制器（外部开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The TPS51218 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 selections 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 conversion input voltage which is the high-side FET drain voltage ranges from 3 V to 28 V and the output voltage ranges from 0.7 V to 2.6 V. The device requires an external 5-V supply. The TPS51218 is available in a 10-pin SON package specified from –40°C to 85°C.

产品特性

Wide Input Voltage Range: 3 V to 28 V
Output Voltage Range: 0.7 V to 2.6 V
Wide Output Load Range: 0 to 20A+
Built-in 0.5% 0.7 V Reference
D-CAP™ Mode with 100-ns Load Step Response
Adaptive On Time Control Architecture With 4 Selectable Frequency Setting
4700 ppm/°C RDS(on) Current Sensing
Internal 1-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

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