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TPS51117器件是一款经济高效的同步降压控制器,适用于笔记本电脑应用中的POL电压调节。控制器专用于自适应接通时间D-CAP模式的操作。该模式提供易用性,低外部元件数和快速瞬态响应。可选择自动跳跃模式以实现低至毫安负载范围的高效率,或仅用于低噪声运行的仅PWM模式。
正过流和负过流保护的电流检测方案无损耗低侧R DS(on)传感加温度补偿。该器件从另一个稳压器(如TPS51120或TPS51020)接收5 V(4.5 V至5.5 V)电源。转换输入可以是VBAT或5 V电压轨,范围为1.8 V至28 V,输出电压范围为0.75 V至5.5 V.
TPS51117采用14-电压供电引脚VQFN或14引脚TSSOP封装,额定温度范围为?40°C至85°C。
所有其他商标均为其各自所有者的财产
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 |
TPS51117 | TPS51217 | TPS51218 |
---|---|---|
1.8 | 3 | 3 |
28 | 28 | 28 |
0.76 | 0.6 | 0.7 |
5.5 | 2.6 | 2.6 |
10 | 20 | 20 |
1 | 1 | 1 |
1 | 1 | 1 |
100 | 312 | 266 |
550 | 368 | 465 |
0.4 | 0.32 | 0.32 |
Enable Power Good Pre-Bias Start-Up Synchronous Rectification | Dynamic Voltage Scaling Enable Light Load Efficiency Power Good Pre-Bias Start-Up Synchronous Rectification | Enable Light Load Efficiency Power Good Pre-Bias Start-Up Synchronous Rectification |
95 | 89 | 91 |
-40 to 85 | -40 to 85 | -40 to 85 |
Catalog | Catalog | Catalog |
TSSOP VQFN | WSON | WSON |
D-CAP | D-CAP | D-CAP |