R1280D002X Datasheet, PDF (15/26 Pages) RICOH electronics devices division – 2CH PWM DC/DC Controller

2) Efficiency vs. Output Current
VIN=3.3V, Topt=25°C
L1=6.8uH,C1=10uF, VOUT2=-VOUT1,IOUT2=0mA
L2=6.8uH,C2=10uF, VOUT1=-VOUT2,IOUT1=0mA
90
80
70
60
50
40
30
20
10
0
0
R1280D002A
90
80
70
Vout1=5V
60
Vout1=10V
50
Vout1=15V
40
30
20
10
0
50
100
150
200
0
Output Current IOUT1(mA)
R1280D002A
Vout2=-5V
Vout2=-10V
Vout2=-15V
-50
-100
-150
Output Current IOUT2(mA)
-200
L1=6.8uH,C1=10uF, VOUT2=-VOUT1,IOUT2=0mA
L2=6.8uH,C2=10uF, VOUT1=-VOUT2,IOUT1=0mA
90
80
70
60
50
40
30
20
10
0
0
R1280D002B
Vout1=5V
Vout1=10V
Vout1=15V
50
100
150
200
Output Current IOUT1 (mA)
L1=22uH,C1=10uF, VOUT2=-VOUT1,IOUT2=0mA
90
80
70
60
50
40
30
20
10
0
0
R1280D002B
Vout2=-5V
Vout2=-10V
Vout2=-15V
-50
-100
-150
Output Current IOUT2 (mA)
-200
L2=22uH,C2=10uF, VOUT1=-VOUT2,IOUT1=0mA
90
80
70
60
50
40
30
20
10
0
0
R1280D002C
Vout1=5V
Vout1=10V
Vout1=15V
50
100
150
200
Output Current IOUT1 (mA)
90
80
70
60
50
40
30
20
10
0
0
R1280D002C
Vout2=-5V
Vout2=-10V
Vout2=-15V
-25
-50
-75 -100 -125
Output Current IOUT2 (mA)
-150
Rev. 1.10
- 15 -