SANKEN SI-8000S_10

1-1-2 Switching Mode Regulator ICs
SI-8000S Series Full-Mold, Separate Excitation Step-down Switching Mode Regulator ICs
■Features
■Lineup
• Compact full-mold package (equivalent to
TO220)
Part Number
SI-8033S
SI-8050S
SI-8090S
SI-8120S
SI-8150S
VO(V)
3.3
5.0
9.0
12.0
15.0
IO(A)
• Output current: 3.0A
• High efficiency: 79 to 91%
3.0
■Absolute Maximum Ratings
• Requires only 4 discrete components
Parameter
Symbol
Ratings
VIN
43*
V
PD1
18(With infinite heatsink)
W
PD2
1.5(Without heatsink, stand-alone operation)
W
Tj
+125
°C
Storage Temperature
Tstg
–40 to +125
°C
SW Terminal Applied Reverse Voltage
VSW
–1
V
Thermal Resistance(junction to case)
θ j-c
5.5
°C/W
• Internally-adjusted phase correction and output
voltage
DC Input Voltage
• Built-in reference oscillator (60kHz)
Power Dissipation
• Built-in overcurrent and thermal protection
circuits
Junction Temperature
• Built-in soft start circuit (Output ON/OFF
available)
Unit
*35V for SI-8033S
■Applications
• Power supplies for telecommunication equipment
• Onboard local power supplies
■Recommended Operating Conditions
Ratings
Parameter
Symbol
SI-8033S
SI-8050S
SI-8090S
SI-8120S
SI-8150S
5.5 to 28
7 to 40
12 to 40
15 to 40
18 to 40
Unit
DC Input Voltage Range
VIN
Output Current Range
IO
0 to 3.0
A
Tjop
–30 to +125
°C
Operating Junction Temperature Range
V
■Electrical Characteristics
(Ta=25°C)
Ratings
Parameter
SI-8000S*1
Output Voltage
SI-8033S
Symbol
SI-8000SS
VO
min.
typ.
3.17
3.234
Conditions
Conditions
Oscillation Frequency
Line Regulation
Load Regulation
Temperature Coefficient of
Output Voltage
Overcurrent Protection
Starting Current
f
Conditions
∆VOLINE
Conditions
IS1
ICs
Unit
min.
typ.
max.
min.
typ.
max.
min.
typ.
max.
3.30
3.43
4.80
5.00
5.20
8.55
9.00
9.45
11.50
12.00
12.50
14.25
15.00
15.75
3.30
3.366
4.90
5.00
5.10
V
VIN=20V, IO=1.0A
VIN=21V, IO=1.0A
VIN=24V, IO=1.0A
VIN=25V, IO=1.0A
79
84
88
90
91
VIN=15V, IO=1.0A
VIN=20V, IO=1.0A
VIN=21V, IO=1.0A
VIN=24V, IO=1.0A
VIN=25V, IO=1.0A
60
60
60
60
60
VIN=15V, IO=1.0A
VIN=20V, IO=1.0A
VIN=21V, IO=1.0A
VIN=24V, IO=1.0A
VIN=25V, IO=1.0A
80
40
100
50
120
60
130
60
%
kHZ
130
VIN=10 to 30V, IO=1.0A
VIN=15 to 30V, IO=1.0A
VIN=18 to 30V, IO=1.0A
VIN=21 to 30V, IO=1.0A
10
10
10
10
10
30
40
40
40
VIN=20V, IO=0.5 to 1.5A
VIN=21V, IO=0.5 to 1.5A
VIN=24V, IO=0.5 to 1.5A
VIN=25V, IO=0.5 to 1.5A
±0.5
±0.5
±1.0
±1.0
±1.0
3.1
3.1
VIN=15V
3.1
VIN=20V
3.1
VIN=21V
mV
40
VIN=15V, IO=0.5 to 1.5A
*1: “S” may be printed to the right of the marking (except SI-8090S, SI-8120S, SI-8150S).
62
SI-8150S
max.
25
∆VO/∆Ta
Conditions
SI-8120S
typ.
VIN=8 to 28V, IO=1.0A
∆VOLOAD
Conditions
SI-8090S
min.
VIN=15V, IO=1.0A
η
Efficiency
SI-8050S
max.
mV
mV/°C
3.1
VIN=24V
VIN=25V
A
SI-8000S Series
■External Dimensions (TO220F-5)
(Unit : mm)
±0.2
4.2
2.8±0.2
±0.2
Pin Assignment
q VIN
w SWOUT
e GND
r VOS
t S.S
(2.0)
2.6±0.1
(17.9)
16.9±0.3
4.0±0.2
7.9±0.2
φ 3.2±0.2
0.5
10.0
0.95±0.15
(8.0)
(4.6)
+0.2
0.85 –0.1
+0.2
0.45 –0.1
P1.7±0.7×4=6.8±0.7
3.9±0.7
(4.3)
8.2±0.7
Plastic Mold Package Type
Flammability: UL94V-0
Product Mass: Approx. 2.3g
Forming No. 1101
1 2 3 4 5
■Block Diagram
VIN 1
2 SWOUT
OCP
Reg.
OSC
Reset
Drive
Comp.
TSD
4 VOS
Amp.
VREF
5 S.S.
3 GND
■Typical Connection Diagram
VIN
1
L1
2
VIN
SI-8000S
+
VO
SWOUT
D1
+
C1
C2
VOS
S.S
GND
5
3
C1,2 : 1000µF
L1 : 150µH
D1 : RK46(Sanken)
4
GND
GND
■Ta-PD Characteristics
PD=VO•IO
20
Power Dissipation PD (W)
Infinite heatsink
15
With Silicone Grease
Heatsink: Aluminum
200×200×2mm
(2.3°C/W)
100×100×2mm
10 (5.2°C/W)
5
Without heatsink
0
–25
0
25
50
75
100
–VF•IO 1–
VO
VIN
The efficiency depends on the input voltage and the output current.
Therefore, obtain the value from the efficiency graph and substitute the percentage in the formula above.
VO
VIN
IO
ηx
VF
75×75×2mm
(7.6°C/W)
100
–1
ηχ
:
:
:
:
:
Output voltage
Input voltage
Output current
Efficiency (%)
Diode D1 forward voltage
0.5V(RK46)
125
Operating Ambient Temperature Ta (°C)
Thermal design for D1 must be considered separately.
ICs
63