The RTQ2812A is a high-performance, synchronous step-down converter that can deliver up to 12A output current with a wide input supply voltage range of 3.5V to 17V. The device integrates low RDS(ON) 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.
The RTQ2812A adopts Advanced Constant-On-Time (ACOT®) control architecture that provides excellent transient performance and reduces the 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.
The device offers a variety of functions to provide more design flexibility. The selectable switching frequency, current limit level, PWM operation modes make the RTQ2812A 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
The RTQ2812A provides complete protection functions including input undervoltage lockout, output undervoltage protection, output overvoltage protection, overcurrent protection, and thermal shutdown. The RTQ2812A is available in a thermally enhanced WQFN-21TL 3x4 (FC) package.
The recommended junction temperature range is -40°C to 150°C.
应用
- Servers, Storage and Network Equipment
- Telecom Infrastructure
- Point of Load (POL) Power Modules
- High Density DC-DC Converters