RTQ2806A Datasheet | Richtek

Description 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 RDSON 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 pact solution. The RTQ2806A adopts Advanced Constant On-Time (ACOT® ) control architecture that provides excellent transient performance and reduces the externalponent count of external ponents. 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. 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 powergood indicator are also provided for easy sequence control. The device provides a programmable softstart-up by an external capacitor connected to the SS/TR pin to control the inrush current during start-up. The RTQ2806A provides plete 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. The remended junction temperature range is - 40C to 150C. 2 Features - Wide Input Voltage Range - 2.7V to 17V with External 3.3V VCC Bias - 3.5V to 17V with Internal VCC Bias - Output Voltage from 0.6V to 5.5V - 0.6V  1% Voltage Reference from - 40C to 150C Junction Temperature Range - ACOT® Control for Excellent Transient Performance - Stable with Ceramic Output Capacitors - Selectable FCCM or PSM Operation at light load - Selectable Operation Switching Frequency (660k Hz/1100k Hz/2200k Hz) - Non-Latch for OCP,...