TPS542A50 是一款具有差分遥感和 I2C 的高效同步降压转换器。该器件提供具有引脚搭接、可选内部补偿的固定频率电压控制模式,可降低系统成本和复杂性。PWM 可通过 SYNC 引脚与外部时钟保持同步。其他关键特性包括 PFM(可提高轻负载效率)、低关断静态电流消耗、可调 UVLO(通过 EN 引脚实现)以及单调启动至预偏置状态。该器件还具有用于器件配置和输出电压调节的 I2C 接口。TPS542A50 是一款无铅器件,完全符合 RoHS 标准,无需豁免。
| Vin (min) (V) | 4 |
| Vin (max) (V) | 18 |
| Vout (min) (V) | 0.5 |
| Vout (max) (V) | 5.5 |
| Iout (max) (A) | 15 |
| Iq (typ) (mA) | 1.2 |
| Switching frequency (min) (kHz) | 400 |
| Switching frequency (max) (kHz) | 2200 |
| Features | Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, I2C, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO Fixed |
| Operating temperature range (°C) | -40 to 150 |
| Rating | Catalog |
| Regulated outputs (#) | 1 |
| Control mode | Voltage mode |
| Duty cycle (max) (%) | 80 |
| Type | Converter |
| VQFN-HR (RJM) | 33 | 18 mm² 4 x 4.5 |