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数据： TPS65262-1 具有双路可调 350mA/150mA 低压降稳压器 (LDO) 的 4.5V 至 18V 输入电压，3A/1A/1A 输出电流三路同步降压转换器 数据表 (Rev. A)
TPS65262-1是一款具有3A /1A /1A输出电流的单片三路同步步降（降压）转换器.4.5V至18V的宽输入电源电压范围包括大多数运行自5V，9V，12V或15V电源总线的中间总线电压。这个具有恒定频率峰值电流模式控制的转换器被设计用来简化它的应用，与此同时，能够使设计人员根据目标应用来优化系统。此器件运行在600kHz的固定开关频率上。为了减少外部组件数量，已经集成针对buck2和buck3的环路补偿.kuck1和buck 2，buck3之间的180°异相运行（buck2和buck3同相运行）可最大限度降低对输入滤波器的要求。轻载条件下，该器件自动在脉冲跳跃模式（PSM）下运行，从而通过减少开关损耗来提供高效率。 /p>
TPS65262-1内置两个低压降线性稳压器（LDO），它们的输入电压范围为1.3V至5.5V，持续输出电流为350 /150mA，具有独立使能和可调输出电压特性。
TPS65262-1特有自动电源序列，可将MODE引脚驱动为高电平，并配置EN1，EN2和EN3引脚。
该器件具有过压保护，过流保护，短路保护和过热保护功能。电源正常引脚在任何降压输出电压降至稳压范围之外时被置为有效。
所有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 |
| TPS65262-1 | TPS65251 | TPS65251-1 | TPS65251-2 | TPS65251-3 | TPS65261 | TPS65261-1 | TPS65262-2 | TPS65263 |
|---|---|---|---|---|---|---|---|---|
| 1.3 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 1.3 | 4.5 |
| 18 | 18 | 17 | 17 | 17 | 18 | 18 | 18 | 18 |
| 0.6 | 0.8 | 0.8 | 0.8 | 0.8 | 0.6 | 0.6 | 0.6 | 0.6 |
| 17 | 17 | 17 | 17 | 17 | 17 | 17 | ||
| 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| 5 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 3 |
| 540 | 300 | 300 | 300 | 300 | 250 | 250 | 540 | 550 |
| 670 | 2200 | 2200 | 2200 | 2200 | 2000 | 2000 | 670 | 650 |
| 0.79 | 20 | 1 | 1 | 1 | 0.6 | 0.6 | 0.79 | 0.74 |
| Adjustable Current Limit Enable Light Load Efficiency Power Good Synchronous Rectification UVLO Adjustable | Adjustable Current Limit Enable Frequency Synchronization Phase Interleaving Power Good Synchronous Rectification UVLO Adjustable | Adjustable Current Limit Enable Frequency Synchronization Light Load Efficiency Phase Interleaving Power Good Synchronous Rectification UVLO Adjustable | Adjustable Current Limit Enable Frequency Synchronization Light Load Efficiency Phase Interleaving Power Good Synchronous Rectification UVLO Adjustable | Adjustable Current Limit Enable Frequency Synchronization Light Load Efficiency Phase Interleaving Power Good Synchronous Rectification UVLO Adjustable | Enable Light Load Efficiency Power Good Synchronous Rectification UVLO Adjustable | Enable Power Good Synchronous Rectification UVLO Adjustable | Adjustable Current Limit | Adjustable Current Limit Dynamic Voltage Scaling Enable Light Load Efficiency Power Good Synchronous Rectification UVLO Adjustable |
| Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode |
| 100 | 100 | 90 | 90 | 90 | 95 | 95 | 100 | 100 |
| -40 to 85 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| VQFN | VQFN | VQFN | VQFN | VQFN | VQFN | VQFN | VQFN | VQFN |
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