EVB_RT6276BHGQUF: 0.6 ~ 5.1V @ 6A, 4.5 ~ 23Vin Buck

The RT6276B is an advanced constant on-time (ACOT) mode synchronous buck converter. The main control loop of the RT6276B using an advanced constant on-time (ACOT) mode control which provides a very fast transient response. The RT6276B operates from 4.5V to 23V input voltage, the output voltage can be programmed between 0.6V to 5.1V

The RT6276A is a simple, easy-to-use, 6A synchronous step-down DC-DC converter with an input supply voltage range of 4.5V to 23V. The device build-in an accurate 0.6V reference voltage and integrates low RDS(ON) power MOSFETs to achieve high efficiency in a UQFN-12HL 3x3 package. The RT6276A adopts Advanced Constant On Time (ACOTTM) control architecture to provide an ultrafast transient response with few external components and to operate in nearly constant switching frequency over the line, load, and output voltage range.

The RT6276B operates in Forced PWM that helps meet tight voltage regulation accuracy requirements. The RT6276B senses both FETs current for a robust over-current protection. It features cycle-by-cycle current limit protection and prevent the device from the catastrophic damage in output short circuit, over current or inductor saturation. A built-in soft-start function prevents inrush current during start-up. The device also includes input under-voltage lockout, output under-voltage protection, over-voltage protection, and over-temperature protection (thermal shutdown) to provide safe and smooth operation in all operating conditions.