rt9911 Richtek Technology Corporation, rt9911 Datasheet - Page 17

• Manufacturer Part Number: rt9911
• Description: 6 Channel Dc/dc Converters
• Manufacturer: Richtek Technology Corporation

DS9911-04 August 2007
15.780
15.775
15.770
15.765
15.760
15.755
15.750
15.745
15.740
15.735
15.730
11.88
11.87
11.86
11.85
11.84
11.83
11.82
11.81
11.80
11.79
11.78
CH4 Boost Output Voltage vs. Output Current
2.4
0
V
V
CH5 LX5 and Output Voltage Ripple
V
IN
CH4 Output Voltage vs. V
IN
IN
10
= 3.7V, V
= 2.5V, PVDD5 = 3.3V, I
2.8
= 1.8V, V
20
3.2
OUT
30
OUT
Output Current (mA)
V
= 15.5V
Time (1μs/Div)
3.6
= -8V, I
DDM
40
Voltage (V)
50
OUT
4
OUT
= 50mA
60
= 30mA
4.4
70
DDM
4.8
80
Voltage
5.2
90
100
5.6
15.42
15.41
15.40
15.39
15.38
15.37
15.36
15.35
15.34
15.33
15.32
100
90
80
70
60
50
40
30
20
10
0
CH5 Inverting Efficiency vs. Output Current
2.4
1
V
V
CH4 Output Voltage vs. V
IN
V
IN
IN
= 2.5V, PVDD5 = 3.3V, I
= 1.8V, V
2.8
CH5 Load Transient Response
= 1.5V
= 2.0V
= 2.5V
= 4.5V
= 3.2V
= 3.8V
3.2
OUT
Output Current (mA)
V
Time (1ms/Div)
3.6
= -8V
DDM
Voltage (V)
10
4
OUT
4.4
= 30mA
RT9911
www.richtek.com
DDM
4.8
V
Voltage
OUT
5.2
= -8V
17
100
5.6