SI786 Datasheet, PDF (4/14 Pages) Vishay Siliconix – Dual-Output Power-Supply Controller

Si786
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Efficiency vs. 5-V Output Current, 200 kHz
100
V+ = 6 V
90
Efficiency vs. 5-V Output Current, 300 kHz
100
V+ = 6 V
90
V+ = 15 V
80
V+ = 30 V
70
SYNC = 0 V, 3.3 V Off
60
V+ = 15 V
80
V+ = 30 V
70
3.3 V Off
60
50
0.001
0.01
0.1
1
10
5-V Output Current (A)
Efficiency vs. 3.3-V Output Current, 200 kHz
100
90
V+ = 6 V
80
70
60
V+ = 15 V
V+ = 30 V
SYNC = 0 V, 5 V On
50
0.001
0.01
0.1
1
10
5-V Output Current (A)
Efficiency vs. 3.3-V Output Current, 300 kHz
100
V+ = 6 V
90
80
V+ = 15 V
V+ = 30 V
70
5 V On
60
50
0.001
0.01
0.1
1
10
3.3-V Output Current (A)
Quiescent Supply Current vs. Supply Voltage
30
25
20
ON₃ = ON₅ = High
15
10
5
0
0
6
12
18
24
30
Supply Voltage (V)
50
0.001
0.01
0.1
1
10
3.3-V Output Current (A)
Standby Supply Current vs. Supply Voltage
0.5
0.4
0.3
ON₃ = ON₅ = 0 V
0.2
0.1
0.0
0
6
12
18
24
30
Supply Voltage (V)
www.vishay.com
4
Document Number: 70189
S-40807—Rev. J, 26-Apr-04