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RT8206L

High Efficiency, Main Power Supply Controller for Notebook Computers

Richtek Technology 

RT8206L/M

VOUT2 (Pin 30)

SMPS2 Output Voltage Sense Input. Connect this pin to

the SMPS2 output. VOUT2 is an input to the constant

on-time-PWM one-shot circuit. It also serves as the

SMPS2 feedback input in fixed-voltage mode.

ILIM2 (Pin 31)

SMPS2 Current-Limit Adjustment. The GND − PHASE2

current limit threshold is 1/10th the voltage seen at ILIM2

over a 0.5V to 2.5V range. There is an internal 5μA current

source from VCC to ILIM2. The logic current limit threshold

is default to 100mV value if ILIM2 is higher than (VCC −

1V).

FB2 (Pin 32)

SMPS2 Feedback Input. Connect FB2 to VCC or GND for

fixed 3.3V operation. Connect FB2 to a resistive voltage-

divider from VOUT2 to GND to adjust output from 2V to

5.5V.

Copyright ©2012 Richtek Technology Corporation. All rights reserved.

www.richtek.com

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is a registered trademark of Richtek Technology Corporation.

DS8206L/M-07 June 2012

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