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The RTQ2962 is a 2.5A, high-efficiency, peak current mode control asynchronous step-down converter. The device operates with input voltages from 4V to 60V and is protected from load dump transients up to 65V, eases input surge protection design. The device can program the output voltage between 0.8V to V<sub>IN</sub>. The low quiescent current design with the integrated low R<sub>DS(ON)</sub> of high-side MOSFET achieves high efficiency over the wide load range. The peak current mode control with simple external compensation allows the use of small inductors and results in fast transient response and good loop stability. <p align="justify">The wide switching frequency of 100kHz to 2500kHz allows for efficiency and size optimization when selecting the output filter components. The ultra-low minimum on-time enables constant-frequency operation even at very high step-down ratios. For switching noise sensitive applications, it can be externally synchronized from 300kHz to 2200kHz. The build-in spread-spectrum frequency modulation further helping systems designers with better EMC management. </p><p align="justify">The RTQ2962 provides complete protection functions such as input under-voltage lockout, output under-voltage protection, output over-voltage protection, over-current protection, and thermal shutdown. Cycle-by-cycle current limit provides protection against shorted outputs, and soft-start eliminates input current surge during start-up. The RTQ2962 is available in WDFN-10SL 3x3 and SOP-8 (Exposed pad) packages.</p>
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- 通过 AEC-Q100 Grade 1 认证
- 引脚布置是 FMEA 分析的结果
- 输入电压范围：
►4.5V~60V
►4V~60V（软启动结束以后） - 输出电压范围：0.8V~VIN
- 参考电压：0.8V±1.5%
- 峰值电流模式控制架构
- 集成 150mΩ MOSFET 上桥开关
- 静态电流消耗：90μA
- 关机电流消耗：1.3μA
- 工作频率可调范围：100kHz~2.5MHz
- 可同步工作频率范围：300kHz~2.2MHz
- PSM 轻载节能模式
- 内建频率扩展调制模式
- 集成自举电容复充开关，使能轻载低压差直通工作模式
- 型号可选外部可调软启动
- 使能控制
- 可调节欠压锁定保护阈值和滞回值
- 相邻引脚短路保护
- 内建欠压锁定保护、欠压保护、过压保护、过流保护和过热保护等功能
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汽车、通讯和工业应用中的 12V、24V和 48V 电源系统 工业自动化与电机控制系统 车用配件之 GPS、娱乐信息系统
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