TPS62868 和 TPS62869 器件是采用 I2C 接口的高频同步降压转换器,可提供高效、自适应和高功率密度解决方案。该转换器在中高负载条件下以 PWM 模式运行,并在轻负载时自动进入省电模式运行,从而在整个负载电流范围内保持高效率。该器件还可强制进入 PWM 模式运行,以实现最小的输出电压纹波。凭借其 DCS-Control 架构,这些器件可实现出色的负载瞬态性能并符合严格的输出电压精度要求。通过 I2C 接口和专用 VID 引脚,可快速调整输出电压,使负载的功耗适应相关应用不断变化的性能需求。
| Vin (min) (V) | 2.4 |
| Vin (max) (V) | 5.5 |
| Vout (min) (V) | 0.2, 0.4, 0.8 |
| Vout (max) (V) | 0.8375, 1.675, 3.35 |
| Iout (max) (A) | 4 |
| Iq (typ) (mA) | 0.004 |
| Switching frequency (min) (kHz) | 2400 |
| Switching frequency (max) (kHz) | 2400 |
| Features | Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, I2C/PMBus, Light load efficiency, Output discharge, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, UVLO fixed, VID Interface |
| Operating temperature range (°C) | -40 to 125 |
| Rating | Catalog |
| Regulated outputs (#) | 1 |
| Control mode | DCS-Control |
| Duty cycle (max) (%) | 100 |
| Type | Converter |
| VQFN-HR (RQY) | 9 | 3.75 mm² 2.5 x 1.5 |