qSI-3000J
Series
SI-3000J Series
5-Terminal, Multi-Function, Full-Mold, Low Dropout Voltage Dropper Type
sFeatures
•
•
•
•
•
Compact full-mold package (equivalent to TO220)
Output current: 2.0A
Low dropout voltage: V
DIF
≤1V
(at I
O
=2.0A)
Variable output voltage (rise only) May be used for remote sensing
Output ON/OFF control terminal is compatible with LS-TTL. (It may be
directly driven by LS-TTL or standard CMOS logic.)
• Built-in foldback overcurrent, overvoltage, thermal protection circuits
sApplications
• For stabilization of the secondary stage of switching power supplies
• Electronic equipment
sAbsolute
Maximum Ratings
Parameter
DC Input Voltage
Voltage of Output Control Terminal
DC Output Current
Power Dissipation
Junction Temperature
Ambient Operating Temperature
Storage Temperature
Thermal Resistance (junction to case)
Thermal Resistance (junction to ambient air)
Symbol
SI-3050J
V
IN
V
C
I
O
P
D1
P
D2
T
j
T
op
T
stg
R
th(j-c)
R
th(j-a)
25
Ratings
SI-3090J
30
V
IN
2.0
*1
20(With infinite heatsink)
1.5(Without heatsink, stand-alone operation)
–40 to +125
–30 to +100
–40 to +125
5.0
66.7(Without heatsink, stand-alone operation)
SI-3120J/3150J
35
V
V
A
W
W
°C
°C
°C
°C/W
°C/W
Unit
(T
a
=25°C)
46
qSI-3000J
Series
sElectrical
Characteristics
Ratings
Parameter
Input Voltage
Output Voltage
Symbol
min.
V
IN
V
O
Conditions
V
DIF
Dropout Voltage
Conditions
1.0
Conditions
Line Regulation
Load Regulation
Temperature Coefficient
of Output Voltage
Ripple Rejection
∆V
OLINE
Conditions
∆V
OLOAD
Conditions
∆V
O
/∆T
a
Conditions
R
REJ
Conditions
I
q
Quiescent Circuit
Current
Overcurrent Protection
Starting Current
*3,5
Control Voltage (Output ON)
Control Voltage (Output OFF)
Control Current
V
C
Terminal
*4
(Output ON)
Control Current
(Output OFF)
Conditions
I
q
(off)
Conditions
I
S1
Conditions
V
C.
IH
V
C.
IL
I
C.
IH
Conditions
I
C.
IL
Conditions
–0.3
2.0
0.8
20
2.1
V
IN
=8V
2.0
0.8
20
V
C
=2.7V
–0.3
V
C
=0.4V
–0.3
10
40
±0.5
V
IN
=8V, I
O
=5mA, T
j
=0 to 100°C
54
V
IN
=8V, f=100 to 120H
Z
3
V
IN
=8V, I
O
=0A
0.5
1.0
2.1
V
IN
=12V
2.0
0.8
20
V
IN
=8V, I
O
=0A, V
C
=0.4V
10
30
100
18
70
±1.0
V
IN
=12V, I
O
=5mA, T
j
=0 to 100°C
54
V
IN
=12V, f=100 to 120H
Z
3
V
IN
=12V, I
O
=0A
0.5
1.0
2.1
V
IN
=15V
V
IN
=12V, I
O
=0A, V
C
=0.4V
10
V
IN
=6 to 15V, I
O
=1.0A
V
IN
=8V, I
O
=0 to 2.0A
6
*2
4.90
5.00
V
IN
=8V, I
O
=1.0A
0.5
SI-3050J
typ.
max.
15
*1
5.10
min.
10
*2
8.82
9.00
SI-3090J
typ.
max.
25
*1
9.18
0.5
I
O
≤1.5A
1.0
I
O
≤2.0A
48
180
24
93
±1.5
V
IN
=15V, I
O
=5mA, T
j
=0 to 100°C
54
V
IN
=15V, f=100 to 120H
Z
3
V
IN
=15V, I
O
=0A
0.5
1.0
V
IN
=15V, I
O
=0A, V
C
=0.4V
10
64
240
1.0
min.
13
*2
11.76
12.00
SI-3120J
typ.
max.
27
*1
12.24
0.5
(T
a
=25°C unless otherwise specified)
SI-3150J
min.
16
*2
14.70
15.00
typ.
max.
27
*1
15.30
0.5
Unit
V
V
V
IN
=12V, I
O
=1.0A
V
IN
=15V, I
O
=1.0A
V
IN
=18V, I
O
=1.0A
V
1.0
30
120
±1.5
V
IN
=18V, I
O
=5mA, T
j
=0 to 100°C
54
V
IN
=18V, f=100 to 120H
Z
3
V
IN
=18V, I
O
=0A
0.5
2.1
V
IN
=18V
2.0
0.8
20
–0.3
µA
mA
V
1.0
mA
A
V
IN
=18V, I
O
=0A, V
C
=0.4V
10
mA
dB
90
300
mV
mV
mV/°C
V
IN
=10 to 20V, I
O
=1.0A
V
IN
=12V, I
O
=0 to 2.0A
V
IN
=13 to 25V, I
O
=1.0A
V
IN
=15V, I
O
=0 to 2.0A
V
IN
=16 to 25V, I
O
=1.0A
V
IN
=18V, I
O
=0 to 2.0A
*1: V
IN(max)
and I
O(max)
are restricted by the relation P
D(max)
=(V
IN
-V
O
)•I
O
=20(W).
*2: Refer to the dropout voltage.(Refer to Setting DC Input Voltage on page 7.)
*3: I
S
1 is specified at –5(%) drop point of output voltage V
O
on the condition that V
IN
=V
O
+3V, I
O
=0.5A.
*4: Output is ON even when output control terminal V
C
is open. Each input level is equivalent to LS-TTL. Therefore, it may be directly driven by an
LS-TTL circuit.
*5: A foldback type overcurrent protection circuit is built into the I
C
regulator. Therefore, avoid using it for the following applications as it may cause
starting errors:
(1) Constant current load (2) Plus/minus power (3) Series power (4) V
O
adjustment by raising ground voltage
47
qSI-3000J
Series
sOutline
Drawing
φ
3.2
±0.2
0.5
(unit:mm)
10.0
±0.2
4.2
±0.2
±0.2
2.8
4.0
±0.2
7.9
±0.2
(17.9)
Part Number
Lot Number
16.9
±0.3
2.6
±0.1
(2.0)
Plastic Mold Package Type
Flammability: UL94V-0
Weight: Approx. 2.3g
q
w
e
r
t
GND
V
C
V
O
V
OS
V
IN
0.95
±0.15
+0.2
0.85
–0.1
(4.6)
0.45
–0.1
P1.7
±0.7
×4=6.8
±0.7
+0.2
3.9
±0.7
(4.3)
8.2
±0.7
1 2 3 4 5
Forming No. 1101
sBlock
Diagram
SI-3000J
5
T
r1
3
MIC
(8.0)
5.0
±0.6
4
Drive
ON/OFF
Protection
Amp.
Reg.
2
Equivalent
to LS-TTL
1
sStandard
External Circuit
C
0
*1 C
1
C
2
3
SI-3000J
2
1
4
+
C
0
DC Output
V
O
V
REF
D
1
*
2
: Output capacitor (47 to 100µF)
: Oscillation prevention capacitor (C
1
: Approx. 47µF,
C
2
: 0.33µF)
These capacitors are required if the input line is inductive
and in the case of long wiring. Tantalum capacitors are rec-
ommended for C
1
and C
0
, particularly at low temperatures.
5
+
DC Input
V
IN
*
1
C
1
C
2
OPEN
*2 D
1
: Protection diode
This diode is required for protection against reverse bias-
ing of the input and output. Sanken EU2Z is recommended.
48
qSI-3000J
Series
sT
a
-P
D
Characteristics
25
Power Dissipation P
D
(W)
20
Infinite heatsink
With Silicon Grease: G746
(SHINETSU CHEMICAL
INDUSTRIES)
Heatsink: Aluminum
15
200×200×2mm (2.3°C/W)
100×100×2mm (5.2°C/W)
75×75×2mm (7.6°C/W)
10
5
Without heatsink
0
–30
0
25
50
75
100
Ambient Temperature T
a
(°C)
P
D
=I
O
•[V
IN
(mean)–V
O
]
49
qSI-3000J
Series
External Variable Output Voltage Circuit
1. Variable output voltage with a single external resistor
V
IN
5
3
V
O
25
V
IN
=V
O
+1V
S
J
50
+
OPEN
2
47µF
SI-3000J
1
4
I
REX
R
EX
V
04
+
47µF
1
I-3
GND
GND
20
S
12
I-3
0J
Output Voltage V
O
(V)
The output voltage may be increased by inserting resistor R
EX
between
terminals No.4 (sensing terminal) and No.3 (output terminal). The cur-
rent I
REX
flowing into terminal No.4 is 1mA (typ.), therefore the adjusted
output voltage V
OUT
is:
V
O
=V
04
+I
REX
•R
EX
*V
04
: output voltage of SI-3000J series
However, the built-in resistor (between terminals No. 4 and No.1) is a
semiconductor resistor, which has approximately thermal characteris-
tics of +0.2%/°C.
It is important to keep the thermal characteristics in mind when adjust-
ing the output voltage.
2. Variable output voltage with two external resistors
V
IN
5
3
V
O
-3
SI
09
0J
15
-3
SI
05
0J
10
5
0
2
4
6
8
External Resistor R
EX
(kΩ)
10
+
OPEN
2
47µF
SI-3000J
1
4
I
REX1
R
EX1
V
04
+
47µF
25
V
IN
=V
O
+1V
GND
0J
15
Ω
I-3 3.75k
S =
X2
R
E
I
4IN
GND
R
EX2
20
Output Voltage V
O
(V)
The output voltage may be increased by inserting resistors R
EX1
be-
tween terminals No.4 (sensing terminal) and No.3 (output terminal) and
R
EX2
between terminals No.4 and No.1 (ground terminal).
The current I
4IN
flowing into terminal No.4 is 1mA (typ.) so the thermal
characteristics may be improved compared to the method shown in 1
by setting the external current I
REX1
at approximately 5 times the value
of I
4IN
(stability coefficient S=5).
The adjusted output voltage V
OUT
in this case is:
V
O
=V
04
+R
EX1
•I
REX1
I
REX1
=S•I
4IN
The value of the external resistors may be obtained as follows:
V
O
-V
04
V
04
R
EX1
=
R
EX2
=
S•I
4IN
,
(S-1)•I
4IN
*V
04
: Output voltage of SI=3000J series
S: Stability coefficient of I
4IN
(may be set to any value)
0J
12 k
Ω
S
X2
=3
R
E
I-3
15
0J k
Ω
09 25
I-3
2
=2.
S
X
R
E
0J k
Ω
05 25
I-3
2
=1.
S
X
R
E
10
5
0
1.0
External Resistor R
EX1
(kΩ)
2.0
Note: In the SI-3000J series, the output voltage increase can be ad-
justed as mentioned above. However, when the rise is set to ap-
proximately 10V compared to output voltage V
04
, the necessary
output current may not be obtained due to the S.O.A. protection
circuit in the SI-3000J series.
50
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