Product Description

• The RT8204A PWM controller provides the 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.
• The constant-on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns“instant-on” response to load transients while maintaining a relatively constant switching frequency.
• TECHNICAL SHEET: https://pdf1.alldatasheet.com/datasheet-pdf/view/505437/RICHTEK/RT8204A.html

• PWM Controller
• Ultra-High Efficiency
• Resistor Programmable Current Limit by Low Side RDS(ON) Sense (Lossless Limit) or Sense Resistor (High Accuracy)
• Quick Load Step Response within 100ns
• 1%  VOUT Accuracy Over Line and Load
• Adjustable 0.75V to 3.3V Output Range
• 3V to 26V Battery Input Range
• Resistor Programmable Frequency
• Over/Under Voltage Protection
• 2 Steps Current Limit During Soft-Start
• Drives Large Synchronous-Rectifier FET
• LDO Controller
• 1.5% Accuracy Over Line and Load
• Adjustabe Output Voltage down to 0.75V
• Independent Enable and Power Good Indicator
• Drive N-MOSFETs within Rail to Rail Controller Voltage
• MLCC and POSCAP Stable
• RoHS Compliant and 100% Lead (Pb)-Free

• Notebook Computers
• CPU Core Supply
• Chipset/RAM Supply as Low as 0.75V