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RT9907 Datasheet(PDF) 13 Page - Richtek Technology Corporation

Part # RT9907
Description  3 Channel DC/DC Converters IC with High-Efficiency Step-Up and Step-Down
PDF  19 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9907 Datasheet(HTML) 13 Page - Richtek Technology Corporation

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RT9907
13
DS9907-11 May 2014
www.richtek.com
©
Copyright 2014 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Buck3 Efficiency vs. Output Current
50
60
70
80
90
100
1
10
100
1000
Output Current (mA)
VOUT = 1.8V
VIN = 4.5V
VIN = 3.8V VIN = 3V
VIN = 2.5V
Buck3 Efficiency vs. Output Current
30
40
50
60
70
80
90
100
1
10
100
1000
Output Current (mA)
VOUT = 2.5V
VIN = 4.5V
VIN = 3.8V
VIN = 3V
Buck3 Efficiency vs. Output Current
50
60
70
80
90
100
1
10
100
1000
Output Current (mA)
VOUT = 1.5V
VIN = 4.5V
VIN = 3.8V
VIN = 3V
VIN = 2.5V
VIN = 2.2V
Buck2 LX & Output Ripple
Time (500ns/Div)
VDD2 = 4.5V, VDDM = 3.3V, VOUT = 1.8V
@IOUT = 500mA
Buck2 LX & Output Ripple
Time (500ns/Div)
VDD2 = 4.5V, VDDM = 3.3V, VOUT = 1.8V
@IOUT = 250mA
Buck3 Output Voltage vs. VDD3 Voltage
1.79
1.792
1.794
1.796
1.798
1.8
1.802
1.804
1.806
2
2.5
3
3.5
4
4.5
VDD3 Voltage (V)
VBAT = VDDM = 3.3V, IOUT = 250mA



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