RT7291A Overview
The RT7291A/B is a synchronous Buck converter with Advanced Constant On-Time (ACOT®) mode control. The main control loop of the RT7291A/B uses an ACOT® mode control which provides a very fast transient response with no external pensators. The RT7291A/B operates from 5V to 23V input voltage, provides a 5V LDO and a 300kHz CLK to drive an external charge pump.
RT7291A Key Features
- 5V to 23V Input Voltage Range
- Up to 98% Duty for 2S Battery Application
- PWM Frequency Fixed 500kHz
- ACOT® Mode Performs Fast Transient Response
- Integrated MOSFETs
- Support Output MLCC Stable
- Internal Soft-Start (1.5ms typ)
- Built-in OVP/UVP/OCP
- Power Good Indicator
- Fixed 300kHz VCLK to Support Charge Pump