RT9986 RICHTEK [Richtek Technology Corporation], RT9986 Datasheet - Page 13

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

DS9986-00 May 2011
CH1 Step-Up Output Voltage vs. Output Current
3.35
3.33
3.31
3.29
3.27
3.25
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
CH5 Step-Up Efficiency vs. Output Current
0
0
0.001
1.8
0
2.1
CH7 Efficiency vs. Input Voltage
100
2.4
V
OUT
Output Current (mA)
200
Output Current (A)
2.7
Input Voltage (V)
I
OUT
= 16V, L = 10μH, C
= 25mA, L = 10μH, C
3
0.01
300
3.3
V
V
V
V
V
V
V
V
V
V
BAT
BAT
BAT
BAT
BAT
BAT
BAT
BAT
BAT
BAT
400
3.6
= 4.5V
= 4.2V
= 3.9V
= 3.6V
= 3.3V
= 3V
= 2.7V
= 2.5V
= 2.2V
= 2V
V
OUT
BAT
V
V
3.9
BAT
OUT
= 10μF x 2
= 1.8V
500
OUT
= 3.2V
= 3.3V
4.2
= 1μF
600
0.1
4.5
CH1 Step-Up Output Voltage vs. Output Current
CH2 Step-Up Output Voltage vs. Output Current
5.10
5.08
5.06
5.04
5.02
5.00
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
100
CH6 Inverting Efficiency vs. Output Current
90
80
70
60
50
40
30
20
10
0
0
1
0
100
100
V
OUT
Output Current (mA)
Output Current (mA)
Output Current (mA)
200
200
= −8V, L = 10μH, C
300
300
10
V
V
V
V
V
V
V
V
V
V
RT9986
BAT
BAT
BAT
BAT
BAT
BAT
BAT
BAT
BAT
BAT
400
400
www.richtek.com
= 4.2V
= 3.9V
= 3.6V
= 3.3V
= 3V
= 2.7V
= 4.5V
= 2.5V
= 2.2V
= 2V
OUT
V
V
V
BAT
BAT
V
V
V
= 10μF x 2
BAT
BAT
500
OUT
500
OUT
= 4.5V
= 4.2V
= 3V
= 3V
= 5V
= 5V
13
600
100
600