具有高级 Eco-Mode™ 的 4.5V 至 18V 输入,4A 同步降压转换器 14-VQFN -40 to 85
The TPS56428 is a D-CAP2 mode synchronous buck converter which is optimized for various power bus regulation needs with a cost effective, low component count, low standby current solution.
The D-CAP2 mode control provides a fast transient response with no external compensation components. This adaptive on-time control supports seamless transition between PWM mode at higher load conditions and advanced Eco-mode operation at light loads. Advanced Eco-mode™ maintains higher efficiency during lighter load conditions than traditional skip mode.
The TPS56428 also has a proprietary circuit 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 and its output voltage can be programmed between 0.6V and 7.0V. The device also features a fixed 1-ms soft start and a power-good output.
The TPS56428 is available in 8-pin SOIC-8 and 14-pin QFN packages designed to operate over the ambient temperature range of –40°C to 85°C.
输出接口数 1
输出电压 0.6V ~ 7V
输出电流 4 A
静态电流 250 µA
调节输出数 1
开关频率 650 kHz
拓扑结构 Buck
开关电流 5.6 A
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 0.6 V
输出电流Max 4 A
工作温度Max 85 ℃
工作温度Min -40 ℃
输入电压 18 V
安装方式 Surface Mount
引脚数 14
封装 VQFN-14
封装 VQFN-14
工作温度 -40℃ ~ 85℃ TA
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 |
---|---|---|
TPS56428RHLR TI 德州仪器 | 当前型号 | 当前型号 |
TPS56428RHLT 德州仪器 | 类似代替 | TPS56428RHLR和TPS56428RHLT的区别 |