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PDF SI-8033SD Data sheet ( Hoja de datos )
| Número de pieza | SI-8033SD | |
| Descripción | Surface Mount Separate Excitation Step-down Switching Mode Regulator ICs | |
| Fabricantes | Sanken | |
| Logotipo |  |
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qSI-8000SD Series
SI-8000SD Series
Surface Mount, Separate Excitation Switching Type
sFeatures
• Surface-mount package (TO263-5)
• Output current: 3.0 A
• High efficiency: 79% typ. (SI-8033SD), 84% typ. (SI-8050SD)
• Requires 4 external components
• Phase correction and output voltage adjustment performed internally
• Built-in reference oscillator (60 kHz)
• Built-in overcurrent protection, thermal protection circuit
• Output ON/OFF capable
• Soft start possible via ON/OFF pin
sApplications
• Power supplies for telecommunication equipment
• Onboard local power supplies
sLineup
Part Number
VO (V)
IO (A)
SI-8033SD
3.3
3
SI-8050SD
5.0
sAbsolute Maximum Ratings
Parameter
DC Input Voltage
Power Dissipation*
Junction Temperature
Storage Temperature
Thermal Resistance (Junction to Case)
Thermal Resistance (Junction to Ambient Air)
*: Limited by thermal protection circuit.
Symbol
VIN
PD
Tj
Tstg
Rth(j-c)
Rth(j-a)
Ratings
43
3
+125
–40 to +125
3
33.3
Unit
V
W
°C
°C
°C/W
°C/W
Conditions
Glass epoxy board mounting in a 40 x 40 mm (copper area: 100%)
Glass epoxy board mounting in a 40 x 40 mm (copper area: 100%)
s Recommended Operating Conditions
Parameter
Symbol
DC Input Voltage Range
Output Current Range*
Operating Junction Temperature Range
Operating Temperature Range*
*: Limited by Ta-PD characteristics.
VIN1
IO
Tjop
Top
Ratings
SI-8033SD
SI-8050SD
5.5 to 28
7 to 40
0 to 3.0
–30 to +125
–30 to +125
Unit
V
A
°C
°C
1 page  
qSI-8000SD Series
sTypical Characteristics Examples (SI-8033SD)
Efficiency
100
Ta=25°C
90
80 VIN=28V
15V
70
6V 8V
60
50
40
300 0.5 1.0 1.5 2.0 2.5 3.0
Output current IO (A)
Output voltage rise
*Load=C.C Ta=25°C
5
4
IO=0A
3
1A
3A
2
1
0
0 2 4 6 8 10 12
Input voltage VIN (V)
Load regulation
3.40
Ta=25°C
3.35
3.30
3.25
VIN=28V
15V
8V
6V
3.20
3.15
0
0.5 1.0 1.5 2.0 2.5
Output current IO (A)
3.0
Overcurrent protection characteristics
Ta=25°C
5
Thermal protection
5
VIN=15V, IO=0A
4
VIN=6V 15V 28V
3
4
3
22
TSD OFF
TSD ON
11
0
0 1 2 3 4 56
Output current IO (A)
0
50 75 100 125 150 175 200
Ambient temperature Ta (°C)
Temperature characteristics
VIN=15V, IO=1A
90 3.40
80 η
VO
70
3.35
3.30
60
Freq
50
3.25
3.20
40
–50
–25 0
25 50 75
Ambient temperature Ta (°C)
3.15
100
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet SI-8033SD.PDF ] | |
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