SI9121DY-3-T1 VISHAY [Vishay Siliconix], SI9121DY-3-T1 Datasheet - Page 4

• Manufacturer Part Number: SI9121DY-3-T1
• Description: High-Voltage, Non-Isolated Buck-Boost Converter for ISDN Digital Phones
• Manufacturer: VISHAY [Vishay Siliconix]

www.vishay.com
4
Si9121
Vishay Siliconix
TYPICAL CHARACTERISTICS (INTERNALLY REGULATED, 25_C UNLESS NOTED)
5.15
5.10
5.05
5.00
4.95
4.90
4.85
2.5
2.0
1.5
1.0
0.5
−40
−40
−20
−20
5-V V
r
0
DS(on)
0
OUT
Temperature (_C)
Temperature (_C)
20
vs. Temperature
20
vs. Temperature
40
40
60
60
1.4
1.3
1.2
1.1
1.0
−60
80
80
100
100
−50
Supply Current vs. V
85_C
−40
V
NEG
− (V)
−30
25_C
−40_C
3.45
3.40
3.35
3.30
3.25
3.20
3.15
105
100
NEG
95
90
85
−40
−40
−20
−20
−20
−10
3.3-V V
Frequency vs. Temperature
0
0
Temperature (_C)
Temperature (_C)
OUT
20
20
vs. Temperature
40
40
S-40708—Rev. C, 19-Apr-04
Document Number: 71112
60
60
80
80
100
100