TPS544B20 和 TPS544C20 器件是 PMBus 兼容型非隔离式直流/直流集成式 FET 转换器,支持高频运行并提供 20A 或 30A 电流输出,采用 5mm × 7mm 封装,可实现高功率密度和快速瞬态性能,具有最小的 PCB 面积。PMBus 接口用于转换器配置,并监视关键参数,其中包括输出电压、电流和一个可选外部温度。由集成 NexFET 功率级和经优化驱动器提供的高频、低损耗开关可实现极高密度电源解决方案以及减小的电感器和滤波电容器尺寸。根据系统要求,对故障情况的响应可被设定为重新启动或锁断。
| Vin (min) (V) | 4.5 |
| Vin (max) (V) | 18 |
| Vout (min) (V) | 0.6 |
| Vout (max) (V) | 5.5 |
| Iout (max) (A) | 20 |
| Iq (typ) (mA) | 8 |
| Switching frequency (min) (kHz) | 250 |
| Switching frequency (max) (kHz) | 1000 |
| Features | Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Over Current Protection, PMBus, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Telemetry, UVLO adjustable, Voltage Margining |
| Operating temperature range (°C) | -40 to 125 |
| Rating | Catalog |
| Regulated outputs (#) | 1 |
| Control mode | D-CAP, D-CAP2 |
| Duty cycle (max) (%) | 80 |
| Type | Converter |
| LQFN-CLIP (RVF) | 40 | 35 mm² 7 x 5 |