RT9907_11 Datasheet, PDF (10/19 Pages) Richtek Technology Corporation – 3 Channel DC/DC Converters IC with High-Efficiency Step-Up and Step-Down

RT9907
Boost LX & Output Ripple
VIN = 2.5V, VOUT = 3.3V, @IOUT = 400mA
Boost LX & Output Ripple
VIN = 3V, VOUT = 3.3V, @IOUT = 100mA
Time (1us/Div)
Boost LX & Output Ripple
VIN = 3V, VOUT = 3.3V, @IOUT = 400mA
Time (1us/Div)
Buck2 Efficiency vs. Output Current
100
VOUT = 1.8V
VIN = 2.5V
90
80
VIN = 4.5 ^{VIN = 3.8V}
VIN = 3V
70
60
50
1
10
100
Output Current (mA)
1000
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10
Time (1us/Div)
Buck2 Efficiency vs. Output Current
100
VOUT = 1.5V
VIN = 2.2V
90
80
VIN = 4.5V
VIN = 2.5V
70
VIN = 3V
VIN = 3.8V
60
50
1
10
100
Output Current (mA)
1000
Buck2 Efficiency vs. Output Current
100
VOUT = 2.5V
90
VIN = 4.5
80
70
60
VIN = 3.8V
50
VIN = 3V
40
30
1
10
100
Output Current (mA)
1000
DS9907-10 April 2011