开关稳压器 4.5V-18V Input 2A Sync SD Cnvtr
The TPS54228 device is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54228 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54228 uses the D-CAP2™ mode control that provides a fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-Mode™ operation at light loads. Eco-Mode™ allows the TPS54228 to maintain high efficiency during lighter load conditions. The TPS54228 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance ESR output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54228 is available in 8-pin SO , 8-pin SOIC, and 10-pin VSON packages, and is designed to operate over the ambient temperature range of –40°C to 85°C.
输出接口数 1
输出电压 0.76V ~ 7V
输出电流 2 A
静态电流 800 µA
调节输出数 1
开关频率 700 kHz
拓扑结构 Buck
输入电压Max 18 V
输入电压Min 4.5 V
输出电压Max 7 V
输出电压Min 0.76 V
工作温度Max 85 ℃
工作温度Min -40 ℃
输入电压 4.5V ~ 18V
安装方式 Surface Mount
引脚数 10
封装 VSON-10
封装 VSON-10
工作温度 -40℃ ~ 85℃
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
TPS54228DRCR TI 德州仪器 | 当前型号 | 当前型号 |
TPS54228DRCT 德州仪器 | 类似代替 | TPS54228DRCR和TPS54228DRCT的区别 |