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RT9903B Datasheet(PDF) 7 Page - Richtek Technology Corporation |
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RT9903B Datasheet(HTML) 7 Page - Richtek Technology Corporation |
7 / 15 page RT9903B Preliminary 7 DS9903B-07 August 2007 www.richtek.com Typical Operating Characteristics CH1 Efficiency vs. Output Current 65 70 75 80 85 90 95 100 0 5 10 15 20 25 30 35 40 45 50 Output Current (mA) VIN = 4.5V VIN = 3.8V VIN = 3V VIN = 2.5V VOUT = 12V VLX1 & Output Ripple Time (1us/Div) VBAT = 3V, VDD = 3.3V, @IOUT = 30mA VLX1 & Output Ripple Time (1us/Div) VBAT = 2.5V, VDD = 3.3V, @IOUT = 30mA VLX1 & Output Ripple Time (1us/Div) VBAT = 3.8V, VDD = 3.3V, @IOUT = 30mA VLX1 & Output Ripple Time (1us/Div) VBAT = 4.2V, VDD = 3.3V, @IOUT = 30mA CH2 Efficiency vs. Output Current 70 75 80 85 90 95 100 0 5 10 15 20 25 30 Output Current (mA) VIN = 4.5V VIN = 3.8V VIN = 3V VIN = 2.5V VOUT = 15V |
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