RT9986 RICHTEK [Richtek Technology Corporation], RT9986 Datasheet - Page 14

• Manufacturer Part Number: RT9986
• Description: 7-CH DC/DC Converter for DSC
• Manufacturer: RICHTEK [Richtek Technology Corporation]

RT9986
www.richtek.com
14
CH4 Step-Down Output Voltage vs. Output Current
CH2 Step-Down Output Voltage vs. Output Current
-8.190
-8.195
-8.200
-8.205
-8.210
1.006
1.004
1.002
1.000
0.998
0.996
0.994
0.992
3.36
3.34
3.32
3.30
3.28
3.26
CH6 Inverting Efficiency vs. Output Current
0
0
0
100
100
20
Output Current (mA)
Output Current (mA)
Output Current (mA)
200
200
40
V
V
BAT
BAT
V
V
V
BAT
BAT
BAT
300
300
= 4.5V
= 5V
= 3.4V
= 4.5V
= 2.7V
V
V
V
60
BAT
BAT
BA
400
400
T
= 3V
= 4.5V
= 2.7V
V
V
V
OUT
80
OUT
OUT
500
500
= 3.3V
= 1V
= −8V
600
600
100
V
V
V
V
(5V/Div)
(2V/Div)
(2V/Div)
(2V/Div)
CH3 Step-Down Output Voltage vs. Output Current
OUT_CH1
OUT_CH2
OUT_CH3
OUT_CH4
CH5 Step-Up Output Voltage vs. Output Current
1.830
1.825
1.820
1.815
1.810
1.805
1.800
16.3
16.2
16.1
16.0
15.9
15.8
0
0
V
V
BAT
BAT
100
20
= 3V
= 4.5V
Power On Sequence
Output Current (mA)
Output Current (mA)
200
Time (2.5ms/Div)
40
300
DS9986-00 May 2011
60
400
V
V
BAT
BAT
V
V
OUT
V
OUT
80
BAT
500
= 3.4V
= 4.5V
= 16V
= 1.8V
= 3.7V
600
100