Description
The RT8237A/B PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies in notebook computers.
Features
- Wide Input Voltage Range : 4.5V to 26V.
- Output Voltage Range : 0.7V to 3.3V.
- Built-in 0.5% 0.7V Reference Voltage.
- Quick Load-Step Response within 100ns.
- 4700ppm/°C Programmable Current Limit by Low
Side RDS(ON) Sensing.
- 4 Selectable Frequency Setting.
- Soft-Start Control.
- Drives Large Synchronous-Rectifier FETs.
- Integrated Boot Switch.
- Built-in OVP/OCP/UVP.
- Thermal Shutdown.
- Power Good Indicator.
- RoHS Compliant and Halogen Free
Ap.
RT8237A_RICHTEK.pdf