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数据: TPS5429x 1.5-A and 2.5-A Dual, Fully-Synchronous Buck Converter With Integrated MOSFET 数据表
TPS54290,TPS54291和TPS54292器件是双输出,全同步降压转换器,能够以最少的外部元件支持应用。它采用4.5 V至18 V输入电源供电,支持低至0.8 V的输出电压和高达输入电压的90%。
高侧和低侧MOSFET集成在一起,可提供更高效率的完全同步转换。通道1可提供高达1.5 A的连续电流。同时,通道2支持高达2.5 A。
电流模式控制简化了补偿。外部补偿增加了用户选择不同类型输出电容的灵活性。
180°异相操作可降低通过输入电容的纹波电流,从而降低输入电容,减轻EMI并增加电容器寿命。
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 (#) |
Switching Frequency (Min) (kHz) |
Switching Frequency (Max) (kHz) |
Iq (Typ) (mA) |
Features |
Control Mode |
Duty Cycle (Max) (%) |
Operating Temperature Range (C) |
Rating |
Package Group |
TPS54292 | TPS54290 | TPS54291 | TPS65253 | TPS65270 |
---|---|---|---|---|
4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
18 | 18 | 18 | 16 | 16 |
0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
14 | 16.2 | 15.3 | 15 | 15 |
2.5 | 2.5 | 2.5 | 3.5 | 3 |
2 | 2 | 2 | 2 | 2 |
1200 | 300 | 600 | 300 | 300 |
1200 | 300 | 600 | 1500 | 1.4 |
1.8 | 1.8 | 1.8 | 0.6 | 0.01 |
Enable Phase Interleaving Synchronous Rectification | Enable Phase Interleaving Synchronous Rectification | Enable Phase Interleaving Synchronous Rectification | Adjustable Current Limit Enable Light Load Efficiency Power Good Synchronous Rectification UVLO Adjustable | Light Load Efficiency Phase Interleaving Pre-Bias Start-Up |
Current Mode | Current Mode | Current Mode | Current Mode | Current Mode |
78 | 90 | 85 | 100 | 100 |
-40 to 145 | -40 to 145 | -40 to 145 | -40 to 85 | -40 to 85 |
Catalog | Catalog | Catalog | Catalog | Catalog |
HTSSOP | HTSSOP | HTSSOP | VQFN | HTSSOP VQFN |