完善资料让更多小伙伴认识你，还能领取20积分哦，立即完善>
数据： Fixed-Frequency, 99% Duty Cycle Peak Current-Mode Notebook System Pwr Controller 数据表
TPS51222是一款具有两个LDO的双同步降压稳压控制器。它针对5 V /3.3 V系统控制器进行了优化，使设计人员能够经济高效地完成2芯到4芯笔记本系统电源。 TPS51222支持高效率，快速瞬态响应和99％占空比工作。它支持4.5 V至32 V的电源输入电压和1 V至12 V的输出电压。峰值电流模式支持稳定运行，具有较低的ESR电容和输出精度。高占空比（99％）操作和宽输入/输出电压范围支持小型移动PC和各种其他应用的灵活设计。固定频率可通过电阻从200 kHz调整到1 MHz，每个通道的相位相差180°。 TPS51222还可以与外部时钟同步，并且可以通过其占空比来调整交错比率。 TPS51222采用32引脚5×5 QFN封装，额定温度范围为-40°C至85°C。
| Vin (Min) (V) |
| Vin (Max) (V) |
| Vout (Min) (V) |
| Vout (Max) (V) |
| Iout (Max) (A) |
| Regulated Outputs (#) |
| Number of Phases |
| Switching Frequency (Min) (kHz) |
| Switching Frequency (Max) (kHz) |
| Iq (Typ) (mA) |
| Features |
| Duty Cycle (Max) (%) |
| Operating Temperature Range (C) |
| Rating |
| Package Group |
| Control Mode |
| TPS51222 | TPS5120 | TPS51221 | TPS5124 |
|---|---|---|---|
| 4.5 | 4.5 | 4.5 | 4.5 |
| 32 | 28 | 28 | 15 |
| 1 | 0.9 | 1 | 0.9 |
| 12 | 26 | 12 | 12 |
| 20 | 20 | 20 | 20 |
| 2 | 2 | 2 | 2 |
| 1 | 2 | 1 | 1 |
| 200 | 100 | 200 | 50 |
| 1000 | 500 | 1000 | 500 |
| 0.8 | 1.1 | 1.3 | 1.1 |
| Enable Frequency Synchronization Light Load Efficiency Phase Interleaving Power Good Synchronous Rectification | Enable Light Load Efficiency Phase Interleaving Power Good Synchronous Rectification | Enable Frequency Synchronization Light Load Efficiency Phase Interleaving Power Good Synchronous Rectification | Enable Light Load Efficiency Power Good Synchronous Rectification |
| 99 | 80 | 99 | 80 |
| -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| Catalog | Catalog | Catalog | Catalog |
| WQFN | TSSOP | WQFN | TSSOP |
| Voltage Mode | Current Mode | Voltage Mode | |
关注我们的微信
下载发烧友APP
机器人发烧友
