SI786 Vishay, SI786 Datasheet - Page 4

• Manufacturer Part Number: SI786
• Description: Dual-output Power-supply Controller
• Manufacturer: Vishay

Si786
Vishay Siliconix
www.vishay.com
4
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
100
100
90
80
70
60
50
90
80
70
60
50
30
25
20
15
10
5
0
0.001
0.001
0
Quiescent Supply Current vs. Supply Voltage
Efficiency vs. 3.3-V Output Current, 200 kHz
Efficiency vs. 5-V Output Current, 200 kHz
V+ = 6 V
V+ = 6 V
6
0.01
0.01
3.3-V Output Current (A)
5-V Output Current (A)
ON
Supply Voltage (V)
V+ = 30 V
SYNC = 0 V, 3.3 V Off
SYNC = 0 V, 5 V On
12
3
V+ = 30 V
= ON
0.1
0.1
5
= High
18
V+ = 15 V
V+ = 15 V
1
1
24
30
10
10
100
100
0.5
0.4
0.3
0.2
0.1
0.0
90
80
70
60
50
90
80
70
60
50
0.001
0.001
0
Efficiency vs. 3.3-V Output Current, 300 kHz
Standby Supply Current vs. Supply Voltage
Efficiency vs. 5-V Output Current, 300 kHz
V+ = 6 V
6
0.01
0.01
V+ = 6 V
3.3-V Output Current (A)
5-V Output Current (A)
ON
Supply Voltage (V)
V+ = 30 V
V+ = 30 V
12
3
= ON
0.1
0.1
3.3 V Off
5
5 V On
= 0 V
S-40807—Rev. J, 26-Apr-04
18
Document Number: 70189
V+ = 15 V
V+ = 15 V
1
1
24
30
10
10