RT9907_11 Datasheet, PDF (14/19 Pages) Richtek Technology Corporation – 3 Channel DC/DC Converters IC with High-Efficiency Step-Up and Step-Down

RT9907
Buck3 Output Voltage vs. VDDM Voltage
1.806
1.804
VDD3 = 3.3V, IOUT = 250mA
1.802
1.8
1.798
1.796
1.794
1.792
1.79
2 2.5 3 3.5 4 4.5 5 5.5 6
VDDM Voltage (V)
Buck3 Load Transient Response
@IOUT = 100mA to 400mA
Buck3 Load Transient Response
@IOUT = 100mA to 400mA
VDD3 = 2.5V, VDDM = 3.3V, VOUT = 1.8V
Time (1ms/Div)
Buck3 Load Transient Response
@IOUT = 100mA to 400mA
VDD3 = 3V, VDDM = 3.3V, VOUT = 1.8V
Time (1ms/Div)
Buck3 Load Transient Response
@IOUT = 100mA to 400mA
VDD3 = 3.8V, VDDM = 3.3V, VOUT = 1.8V
Time (1ms/Div)
Buck3 LX & Output Ripple
@IOUT = 250mA
VDD3 = 4.5V, VDDM = 3.3V, VOUT = 1.8V
Time (1ms/Div)
www.richtek.com
14
VDD3 = 2.5V, VDDM = 3.3V, VOUT = 1.8V
Time (500ns/Div)
DS9907-10 April 2011