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The RTQ2833 is a high-performance, synchronous step-down converter that can deliver up to 3A output current with an input supply voltage range of 4V to 18V. The device integrates low R<sub>DS(ON)</sub> power MOSFETs, an accurate 0.5V reference, and an integrated diode for the bootstrap circuit to offer a very compact solution.The RTQ2833 adopts internally-compensated fast current-mode (FCM) control architecture that provides fast transient response and further reduces the external-component count. The FCM operates at a truly fixed switching frequency over the line, load, and output voltage range and makes the EMI filter design easier.The device offers a variety of functions for more design flexibility. The selectable switching frequency allows the RTQ2833 to meet various application requirements. An independent enable control input pin and a power-good indicator are provided for easy sequence control. The built-in spread-spectrum frequency modulation further helps system designers with better EMI management.Full protection features are also integrated in the device for increased reliability, including input UVLO, cycle-by-cycle current limit, OVP, UVP, OTP, and selectable soft-start time to control the inrush current during the startup. The RTQ2833 is available in a thermally enhanced WQFN-14L 3x2.5 (FC) package. The recommended junction temperature range is from -40°C to 150°C.
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<div class="spec-list"><ul class="lv1"><li>4V to 18V Input Voltage Range </li><li>0.5V to 7V Output Voltage </li><li>Internally-Compensated FCM control </li><li>Integrated 25mΩ/13.9mΩ MOSFETs </li><li>0.5V ±0.5% Voltage Reference Accuracy Over Full Temperature Range </li><li>Synchronizable to an External Clock </li><li>Selectable Spread Spectrum Reducing EMI Emission </li><li>Adjustable Switching Frequency (500kHz/750kHz/1MHz/1.5MHz/2.2MHz) </li><li>Selectable Current Limit Level </li><li>Selectable Soft-Start Tim (0.5ms/1ms/2ms/4ms) </li><li>Monotonic Start-Up into Pre-Biased Outputs </li><li>Power-Good Indicator </li><li>Output Overvoltage, Output Undervoltage, Input Undervoltage, Overcurrent, and Over-Temperature Protection </li><li>-40°C to 150°C Operating Junction Temperature </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Wireless Infrastructure and Wired Communication Equipment </li><li>Optical and Fiber Network Equipment </li><li>Testing and Measurement Instruments </li><li>Healthcare Equipment </li></ul></div>
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