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RT8206A/B
High-Efficiency, Main Power Supply Controllers
for Notebook Computers
General Description Features
The RT8206A/B dual step-down, switch-mode power- Wide Input Voltage Range 6V to 25V
supply (SMPS) controller generates logic-supply voltages Dual Fixed 5V/3.3V Outputs or Adjustable from 2V
in battery-powered systems. The RT8206A/B includes two to 5.5V, 1.5% Accuracy
pulse-width modulation (PWM) controllers fixed at 5V/ Secondary Feedback Input Maintains Charge Pump
3.3V or adjustable from 2V to 5.5V. An optional external Voltage (RT8206A)
charge pump can be monitored through SECFB Independent Enable and Power Good
(RT8206A). This device also features a linear regulator 5V Fixed LDO Output : 70mA
providing a fixed 5V output. The linear regulator provides 2V Reference Voltage