RT9986 RICHTEK [Richtek Technology Corporation], RT9986 Datasheet - Page 12

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

RT9986
Typical Operating Characteristics
www.richtek.com
12
CH 3 Step-Down Efficiency vs. Output Current
100
100
100
CH2 Step-Up Efficiency vs. Output Current
90
80
70
60
50
40
30
20
10
CH1 Step-Up Efficiency vs. Output Current
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
10
10
10
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Output Current (mA)
OUT
Output Current (mA)
BAT
BAT
BAT
BAT
BAT
BAT
OUT
Output Current (mA)
V
BAT
BAT
BAT
BAT
BAT
BAT
BAT
OUT
= 4.5V
= 4.2V
= 3.9V
= 3.6V
= 3.3V
= 3V
= 5V, L = 2.2μH, C
= 5V, L = 2.2μH, C
= 2.7V
= 3V
= 3.3V
= 3.6V
= 3.9V
= 4.2V
= 4.5V
= 1.8V, L = 2.2μH, C
V
V
V
V
V
V
V
100
100
100
BAT
BAT
BAT
BAT
BAT
BAT
BAT
= 3.6V
= 3.3V
= 3V
= 2.7V
= 2.5V
= 2.2V
= 1.8V
OUT
OUT
OUT
= 10μF x 2
= 10μF x 2
= 10μF
1000
1000
1000
CH4 Step-Down Efficiency vs. Output Current
CH2 Step-Down Efficiency vs. Output Current
100
100
100
90
80
70
60
50
40
30
20
10
CH1 Step-Up Efficiency vs. Output Current
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
10
10
10
V
V
V
V
V
V
BAT
BAT
BAT
BAT
BAT
BAT
V
OUT
V
V
V
V
V
V
V
V
V
V
V
V
V
= 3.4V
= 3.7V
= 3.9V
= 4.2V
= 4.5V
= 5V
BAT
BAT
BAT
BAT
BAT
BAT
Output Current (mA)
Output Current (mA)
Output Current (mA)
BAT
BAT
BAT
BAT
BAT
BAT
BAT
V
OUT
= 3.3V, L = 2.2μH, C
V
= 3V
= 2.7V
= 2.5V
= 2.2V
= 2V
= 1.8V
OUT
= 1.8V
= 2.5V
= 3V
= 3.3V
= 3.6V
= 4.2V
= 4.5V
= 3.3V, L = 2.2μH, C
= 1V, L = 2.2μH, C
100
100
100
DS9986-00 May 2011
OUT
OUT
OUT
= 10μF x 2
= 10μF
= 10μF
1000
1000
1000