SI9145 Vishay, SI9145 Datasheet - Page 4

• Manufacturer Part Number: SI9145
• Description: Low-voltage Switchmode Controller
• Manufacturer: Vishay

Si9145
Vishay Siliconix
www.vishay.com
4
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
1.515
1.510
1.505
1.500
1.495
1.490
1.485
1.515
1.510
1.505
1.500
1.495
1.490
1.485
25
20
15
10
5
0
2
0
2
V
f = 1 MHz
REF
vs.Supply Voltage and Output Load
3
5
with 10 mA Load
3
2.7, 3.0, 3.6 V
V
V
V
REF
REF
V
V
REF
DD
DD
10
4
Supply Current
− Sourcing Current (mA)
vs. Supply Voltage
− Supply Voltage (V)
− Supply Voltage (V)
vs. Load Current
7.0 V
4
15
5
5
C
L
20
6
= 2,200 pF
900 pF
100 pF
10 pF
6
5.0 V
25
7
30
7
8
1.515
1.510
1.505
1.500
1.495
1.490
1.485
−20
−40
80
60
40
20
0.0001
0
25
20
15
10
5
0
−25
0.5
vs. Switching Frequency and Output Load
V
V
DD
DD
0.001
= 3.6 V
= 3.6 V
Error Amplifier Gain and Phase
0
Switching Frequency (MHz)
Phase
V
0.01
REF
f − Frequency (MHz)
t − Temperature (_C)
1.0
25
Supply Current
vs. Temperature
0.1
50
Gain
C
L
1
1.5
75
= 2,200 pF
S-40710—Rev. K, 19-Apr-04
Document Number: 70021
900 pF
100 pF
10
100
10 pF
100
125
2.0
0
−30
−60
−90
−120
−150