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The RTQ2806A is a high-performance, synchronous step-down converter that can deliver up to 6A output current with a wide input supply voltage range of 3.5V to 17V. The device integrates low R<sub>DSON</sub> power MOSFETs, an accurate 0.6V ± 1% reference over the full operating junction temperature range and an integrated diode for the bootstrap circuit, offering a very compact solution.<br /><br />The RTQ2806A adopts Advanced Constant On-Time (ACOT<sup>®</sup>) control architecture that provides excellent transient performance and reduces the external-component count of external components. In steady states, the ACOT<sup>®</sup> can operate at nearly constant switching frequency over line, load and output voltage ranges, making the EMI filter design easier. <br /><br />The device offers a variety of functions provide more design flexibility. The selectable switching frequency, current limit level and PWM operation modes make the RTQ2806A easy-to-use over wide application range. An independent enable control input pin and power-good indicator are also provided for easy sequence control. The device provides a programmable soft-start-up by an external capacitor connected to the SS/TR pin to control the inrush current during start-up.<br /><br />The RTQ2806A provides complete protection functions including input undervoltage lockout, output undervoltage protection, output overvoltage protection, overcurrent protection, and over-temperature protection. The RTQ2806A is available in a thermally enhanced WQFN-14TL 2x3 (FC) package.<br /><br />The recommended junction temperature range is -40°C to 150°C.
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- 广泛的输入电压范围
►外部 3.3V VCC 偏压：2.7V 到 17V
►内部 VCC 偏压：3.5V 到 17V - 输出电压范围从 0.6V 到 5.5V
- 从 -40°C 到 150°C 晶片温度范围内的 0.6V± 1% 电压参考
- ACOT® 控制以提供出色的瞬态性能
- 与陶瓷输出电容器稳定
- 在轻负载下可选择 FCCM 或 PSM 运行模式
- 可选择的操作开关频率（660kHz/1100kHz/2200kHz）
- 过电流保护、过压保护、欠压保护、欠压锁定和过温度保护非闸锁式
- 功率良好指示灯
- 启用控制
- 可编程的软启动时间，预设值为 2.2ms
- 可编程的波谷电流限制
- 单调启动进入预偏压输出
- 输出电压跟踪
- 小型 14 引脚 WQFN（2x3）（FC）封装（引脚间距 0.5mm）
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伺服器、储存和网络设备 电信基础设施 负载点（POL）供电模块 高密度 DC-DC 转换器
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