RT2702GQW

The RT2702GQW from Richtek is a step-down DC-DC controller with remote sense in 16 pin WQFN package. This is a high-efficiency and high-current synchronous buck controller designed to drive a DrMOS module. A COT (constant-on-time) PWM controller and PWM signal for DrMOS are integrated so that the external circuit is easily designed and the component count is reduced. The RT2702 adopts FCOT control technology that responds instantly to input voltage change. Besides the RT2702 includes a 5V (VDRV) linear regulator which can provide 5V voltage and supply up to 100mA for DrMOS. It supports two modes transition function with various operating states which include audio skipping mode (ASM) and forced-CCM mode (FCCM). It include features such as power good indication, external softstart setting, soft-off discharge function, precise DCR sense, enable/disable control, over voltage protection (OVP), under voltage protection (UVP), current Limit and thermal shutdown.

• 4.5V to 19V input voltage range
• Adjustable output range, 0.6V reference with 1% accuracy Overtemperature protection
• FCOT (flexible constant on time) control
• Integrated 5V LDO at 100mA for DrMOS module
• Support pre-biased output
• Programmable soft-start, power good indication
• Soft-off through VOUT discharge
• Programmable switching frequency
• Programmable over current limit
• Operating temperature range from -40°C to 105°C

Applikasjoner

Power Management

Advarsler

Devices is ESD sensitive. Handling precaution is recommended.