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RT9902 Datasheet(PDF) 12 Page - Richtek Technology Corporation

Part # RT9902
Description  4 Channel DC/DC Converters IC with High-Efficiency Step-Up and Step-Down
PDF  21 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9902 Datasheet(HTML) 12 Page - Richtek Technology Corporation

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RT9902
Preliminary
12
DS9902-10 August 2007
www.richtek.com
Time (1ms/Div)
Buck2 Load Transient Response
VDD2 = 4.5V, VDDM = 3.3V, VOUT = 1.8V
@IOUT = 100mA to 400mA
Time (1ms/Div)
Buck2 Load Transient Response
VDD2 = 3V, VDDM = 3.3V, VOUT = 1.8V
@IOUT = 100mA to 400mA
Time (1ms/Div)
Buck2 Load Transient Response
VDD2 = 2.5V, VDDM = 3.3V, VOUT = 1.8V
@IOUT = 100mA to 400mA
Time (1ms/Div)
Buck2 Load Transient Response
VDD2 = 3.8V, VDDM = 3.3V, VOUT = 1.8V
@IOUT = 100mA to 400mA
Buck2 Output Voltage vs. VDD2 Voltage
1.804
1.806
1.808
1.81
1.812
1.814
1.816
1.818
1.82
2
2.5
3
3.5
4
4.5
VDD2 Voltage (V)
VBAT = VDDM = 3.3V, IOUT = 250mA
Buck2 Output Voltage vs. VDDM Voltage
1.804
1.806
1.808
1.81
1.812
1.814
1.816
1.818
1.82
2
2.5
3
3.5
4
4.5
5
5.5
6
VDDM Voltage (V)
VDD2 = 3.3V, IOUT = 250mA



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