SI-8000S_10 Datasheet, PDF (1/2 Pages) Sanken electric – Full-Mold, Separate Excitation Step-down Switching Mode Regulator ICs

1-1-2 Switching Mode Regulator ICs
SI-8000S Series Full-Mold, Separate Excitation Step-down Switching Mode Regulator ICs
■Features
• Compact full-mold package (equivalent to
TO220)
• Output current: 3.0A
• High efficiency: 79 to 91%
• Requires only 4 discrete components
• Internally-adjusted phase correction and output
voltage
• Built-in reference oscillator (60kHz)
• Built-in overcurrent and thermal protection
circuits
• Built-in soft start circuit (Output ON/OFF
available)
■Lineup
Part Number
VO(V)
IO(A)
SI-8033S
3.3
SI-8050S
5.0
SI-8090S
9.0
3.0
SI-8120S
12.0
■Absolute Maximum Ratings
Parameter
DC Input Voltage
Power Dissipation
Junction Temperature
Storage Temperature
SW Terminal Applied Reverse Voltage
Thermal Resistance(junction to case)
Symbol
VIN
PD1
PD2
Tj
Tstg
VSW
θ j-c
*35V for SI-8033S
Ratings
43^*
18(With infinite heatsink)
1.5(Without heatsink, stand-alone operation)
+125
–40 to +125
–1
5.5
■Applications
• Power supplies for telecommunication equip-
ment
• Onboard local power supplies
■Recommended Operating Conditions
Parameter
DC Input Voltage Range
Output Current Range
Operating Junction Temperature Range
Symbol
VIN
IO
Tjop
SI-8033S
5.5 to 28
SI-8050S
7 to 40
Ratings
SI-8090S
12 to 40
0 to 3.0
–30 to +125
SI-8120S
15 to 40
SI-8150S
18 to 40
SI-8150S
15.0
Unit
V
W
W
°C
°C
V
°C/W
Unit
V
A
°C
■Electrical Characteristics
Parameter
Output Voltage
SI-8000S*¹
SI-8000SS
Efficiency
Oscillation Frequency
Line Regulation
Load Regulation
Temperature Coefficient of
Output Voltage
Overcurrent Protection
Starting Current
Symbol
VO
Conditions
η
Conditions
f
Conditions
∆VOLINE
Conditions
∆VOLOAD
Conditions
∆VO/∆Ta
IS1
Conditions
SI-8033S
min. typ. max.
3.17 3.30 3.43
3.234 3.30 3.366
VIN=15V, IO=1.0A
79
VIN=15V, IO=1.0A
60
VIN=15V, IO=1.0A
25
80
VIN=8 to 28V, IO=1.0A
10
30
VIN=15V, IO=0.5 to 1.5A
SI-8050S
min. typ. max.
4.80 5.00 5.20
4.90 5.00 5.10
VIN=20V, IO=1.0A
84
VIN=20V, IO=1.0A
60
VIN=20V, IO=1.0A
40
100
VIN=10 to 30V, IO=1.0A
10
40
VIN=20V, IO=0.5 to 1.5A
±0.5
±0.5
3.1
VIN=15V
3.1
VIN=20V
*1: “S” may be printed to the right of the marking (except SI-8090S, SI-8120S, SI-8150S).
Ratings
SI-8090S
min. typ. max.
8.55 9.00 9.45
VIN=21V, IO=1.0A
88
VIN=21V, IO=1.0A
60
VIN=21V, IO=1.0A
50
120
VIN=15 to 30V, IO=1.0A
10
40
VIN=21V, IO=0.5 to 1.5A
±1.0
3.1
VIN=21V
SI-8120S
min. typ. max.
11.50 12.00 12.50
VIN=24V, IO=1.0A
90
VIN=24V, IO=1.0A
60
VIN=24V, IO=1.0A
60
130
VIN=18 to 30V, IO=1.0A
10
40
VIN=24V, IO=0.5 to 1.5A
±1.0
3.1
VIN=24V
SI-8150S
min. typ. max.
14.25 15.00 15.75
VIN=25V, IO=1.0A
91
VIN=25V, IO=1.0A
60
VIN=25V, IO=1.0A
60
130
VIN=21 to 30V, IO=1.0A
10
40
VIN=25V, IO=0.5 to 1.5A
±1.0
3.1
VIN=25V
(Ta=25°C)
Unit
V
%
kHZ
mV
mV
mV/ °C
A
62 ICs