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数据: TPS54331 3-A, 28-V Input, Step Down DC-DC Converter With Eco-mode™ 数据表
TPS54331器件是一款28V,3A非同步降压转换器,集成了低R DS(on)高端MOSFET。为了提高轻载时的效率,自动激活脉冲跳跃Eco模式功能。此外,1μA关断电源电流允许器件用于电池供电应用。具有内部斜率补偿的电流模式控制简化了外部补偿计算,减少了元件数量,同时允许使用陶瓷输出电容器。电阻分压器可编程输入欠压锁定的迟滞。过压瞬态保护电路可在启动和瞬态条件下限制电压过冲。逐周期电流限制方案,频率折返和热关断可在发生过载情况时保护器件和负载。 TPS54331器件采用8引脚SOIC封装和8引脚SO PowerPAD封装,经过内部优化,可提高散热性能。
WEBENCH是德州仪器的商标
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 |
TPS54331 | TPS54231 | TPS54308 | TPS54336A | TPS54531 |
---|---|---|---|---|
3.5 | 3.5 | 4.5 | 4.5 | 3.5 |
28 | 28 | 28 | 28 | 28 |
0.8 | 0.8 | 1 | 0.8 | 0.8 |
25 | 25 | 26 | 25 | 25 |
3 | 2 | 3 | 3 | 5 |
1 | 1 | 1 | 1 | 1 |
570 | 570 | 350 | 340 | 570 |
570 | 570 | 350 | 340 | 570 |
0.11 | 0.075 | 0.3 | 0.6 | 0.11 |
Enable Light Load Efficiency UVLO Adjustable | Enable Light Load Efficiency UVLO Adjustable | Enable Forced Pulse Width Modulation (FPWM) Mode Pre-Bias Start-Up Synchronous Rectification UVLO Adjustable | Enable Light Load Efficiency Synchronous Rectification UVLO Adjustable | Enable Light Load Efficiency |
Current Mode | Current Mode | Current Mode | Current Mode | Current Mode |
90 | 90 | 100 | 90 | 90 |
-40 to 150 | -40 to 150 | -40 to 125 | -40 to 150 | -40 to 85 |
Catalog | Catalog | Catalog | Catalog | Catalog |
SO PowerPAD SOIC | SOIC | SOT-23-THIN | SO PowerPAD VSON | SO PowerPAD |