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RT9971 Datasheet(PDF) 12 Page - Richtek Technology Corporation

Part # RT9971
Description  7 CH Power Management IC
PDF  22 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9971 Datasheet(HTML) 12 Page - Richtek Technology Corporation

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DS9971-01 April 2011
www.richtek.com
RT9971
CH1 Step-Up Efficiency vs. Output Current
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Output Current (mA)
CH1 Step-Up Efficiency vs. Output Current
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CH2 Step-Up Efficiency vs. Output Current
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CH2 Step-Down Efficiency vs. Output Current
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CH3 Step-Down Efficiency vs. Output Current
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Output Current (mA)
CH4 Step-Down Efficiency vs. Output Current
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Output Current (mA)
Typical Operating Characteristics
VDDM = 3V, VOUT_CH1 = 3.3V,
L1 = 2.2
µH, C1 = 10µFx2
VBAT = 3V
VBAT = 2.7V
VBAT = 2.5V
VBAT = 2.2V
VBAT = 2V
VBAT = 1.8V
VDDM = 5V, VOUT_CH1 = 5V,
L1 = 2.2
µH, C1 = 10µFx2
VBAT = 4.5V
VBAT = 4.2V
VBAT = 3.9V
VBAT = 3.6V
VBAT = 3.3V
VBAT = 3V
VDDM = 3V, VOUT_CH2 = 5V,
L2 = 2.2
µH, C5 = 10µFx2
VBAT = 3.4V
VBAT = 3V
VBAT = 2.7V
VBAT = 2.5V
VBAT = 2.2V
VBAT = 1.8V
VDDM = 5V, VOUT_CH2 = 3.3V,
L2 = 4.7
µH, C5 = 10µF
VBAT = 3.4V
VBAT = 3.6V
VBAT = 3.9V
VBAT = 4.2V
VBAT = 4.5V
VBAT = 5V
VDDM = 5V, VOUT_CH3 = 2.5V,
L3 = 4.7
µH, C9 = 10µF
VBAT = 2.7V
VBAT = 3V
VBAT = 3.3V
VBAT = 3.6V
VBAT = 3.9V
VBAT = 4.2V
VBAT = 4.5V
VDDM = 3V, VOUT_CH4 = 1V,
L4 = 4.7
µH, C12 = 10µF
VBAT = 1.8V
VBAT = 2.5V
VBAT = 3V
VBAT = 3.3V
VBAT = 3.6V
VBAT = 4.5V



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