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The RTQ2806 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_DSON 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 RTQ2806 adopts Advanced Constant On-Time (ACOT^®) control architecture that provides excellent transient performance and reduces the external-component count of external components. In steady states, the ACOT^® 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 RTQ2806 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 RTQ2806 provides complete protection functions including input undervoltage lockout, output undervoltage protection, output overvoltage protection, overcurrent protection, and over-temperature protection. The RTQ2806 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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