qSI-3000V
Series
SI-3000V Series
3-Terminal, Low Dropout Voltage Dropper Type
sFeatures
•
•
•
•
TO-3P package 3-terminal regulator
Output current: 2.0A
Low dropout voltage: V
DIF
≤1V
(at I
O
=2.0A)
Built-in foldback overcurrent protection circuit
sApplications
• For stabilization of the secondary stage of switching power supplies
• Electronic equipment
sAbsolute
Maximum Ratings
Parameter
DC Input Voltage
DC Output Current
Power Dissipation
Junction Temperature
Ambient Operating Temperature
Storage Temperature
Thermal Resistance (junction to case)
Symbol
SI-3052V
V
IN
I
O
P
D1
P
D2
T
j
T
op
T
stg
R
th(j-c)
25
2.0
50(T
C
=25°C)
1.6(Without heatsink, stand-alone operation)
–30 to +125
–20 to +100
–30 to +125
2.0
Ratings
SI-3122V/3152V
30
V
A
W
W
°C
°C
°C
°C/W
Unit
(T
a
=25°C)
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
Overcurrent Protection
Starting Current
∆V
OLINE
Conditions
∆V
OLOAD
Conditions
∆V
O
/∆T
a
R
REJ
Conditions
I
S1
Conditions
2.4
V
IN
=8V
2.4
V
IN
=16V
10
40
±0.5
54
30
100
V
IN
=6 to 15V, I
O
=1.0A
V
IN
=8V, I
O
=0 to 2.0A
I
O
=2.0A
20
80
+1.5
54
f=100 to 120H
Z
2.4
V
IN
=20V
60
200
20
80
±1.5
54
60
200
6
4.9
5.0
V
IN
=8V, I
O
=1.0A
0.5
I
O
=1.0A
1.0
1.0
SI-3052V
typ.
max.
15
5.1
min.
13
11.8
12.0
V
IN
=16V, I
O
=1.0A
0.5
SI-3122V
typ.
max.
25
12.2
min.
16
14.8
15.0
V
IN
=20V, I
O
=1.0A
0.5
SI-3152V
typ.
max.
25
15.2
(T
a
=25°C)
unit
V
V
V
mV
mV
mV/°C
dB
A
V
IN
=13 to 25V, I
O
=1.0A
V
IN
=16V, I
O
=0 to 2.0A
V
IN
=16 to 25V, I
O
=1.0A
V
IN
=20V, I
O
=0 to 2.0A
The following are also available: SI-3522V(5.2V), SI-3062V(6V), SI-3082V(8V), SI-3922V(9.2V), SI-3102V(10V), SI-3132V(13.1V), SI-3182V(18V),
SI-3202V(20V).
62
qSI-3000V
Series
sOutline
Drawing
(unit:mm)
2.0
15.6
±0.3
13.6
±0.2
9.6
±0.2
4.8
max.
2.0
max.
19.9
±0.3
Part Number
Lot Number
14.9
±0.3
φ
3.2
±0.1
4.0
20.0
min.
2.0
–0.1
+0.2
Plastic Mold Package Type (TO-3P)
Flammability: UL94V-0
Weight: Approx. 6g
Terminal Connections
q
Output
w
Input (backside of case)
e
Ground
3.5
3.0
–0.1
+0.2
+0.2
+0.2
1.05
–0.1
5.45
±0.1
5.45
±0.1
15.8
±0.2
0.65
–0.1
1.7
+0.2
–0.3
q
w
e
sBlock
Diagram
3
Tr
1
2
M
1
R
2
R
1
R
4
Protection
Drive
Reg.
Amp.
V
REF
R
5
R
3
1
63
qSI-3000V
Series
sStandard
External Circuit
C
1
: Oscillation prevention capacitor (approx. 0.33µF)
Connection to terminal No.3 must be made as short as
possible.
C
2
: Output capacitor (47 to 100µF)
Connection to terminal No.2 must be made as short as
possible.
D
1
: Protection diode (RM1Z)
Required for protection against reverse biasing of input and
output.
Note 1: Prevention of oscillation at low temperatures
At low temperatures, oscillation may occur unless an
output capacitor with good tanδ is used. Be sure to
connect a tantalum capacitor (approx. 10µF) in paral-
lel with output capacitor C
2
.
Note 2: An isolation type diode is provided from input to ground
and also from output to ground. These may be de-
stroyed if the device is reverse biased. In this case,
use a diode with low V
F
to protect them.
Note 3: The output voltage may not be adjusted by raising the
ground voltage (using a diode or resistor).
D
1
V
IN
3
DC input
C
1
SI-3000V
1
2
+
–
V
O
DC output
C
2
sT
a
-P
D
Characteristics
24
200×200×2 (2.3°C/W)
Power Dissipation P
D
(W)
20
16
12
8
4
100×100×2 (5.2°C/W)
75×75×2 (7.6°C/W)
Without Mica
With Silicon Grease
Heatsink: Aluminum
Unit: mm
Without heatsink
0
–20
0
25
50
75
100
Ambient Temperature T
a
(°C)
64
qSI-3000V
Series
sTypical
Characteristics
(T
a
=25°C)
I
O
vs. V
DIF
Characteristics
0.8
Temperature Coefficient of Output Voltage(SI-3052V)
5.06
V
IN
=8V
l
O
=1V
5.04
Circuit Current(SI-3052V)
70
V
O
=5V
60
Dropout Voltage V
DIF
(V)
Ground Current l
G
(mA)
Output Voltage V
O
(V)
0.6
5.02
50
40
30
20
10
lo=2.0A
1.5A
1.0A
0.4
5.00
4.98
0.2
4.96
0.5A
0
0
0.5
1.0
1.5
2.0
4.94
–60 –40 –20
0
20
40 60
80 100 120 140
0
0
0A
5
10
15
17.5
Output Current l
O
(A)
Ambient Temperature T
a
(°C)
Input Voltage V
IN
(V)
Rise Characteristics(SI-3052V)
6
Rise Characteristics(SI-3122V)
16
14
Rise Characteristics(SI-3152V)
18
16
5
Output Voltage Vo (V)
Output Voltage V
O
(V)
Output Voltage V
O
(V)
12
10
8
6
4
2
0
0
2
4
6
8
10
12
14
16
14
12
10
8
L
=
4
∞
Ω
=2
3
R
L
2
=6
R
L
to
∞
Ω
7.
5
to
.5
∞
to
Ω
R
6
4
2
0
0
2
4
6
8
1
0
0
1
2
3
4
5
6
7
10
12
14
16
18
Input Voltage V
IN
(V)
Input Voltage V
IN
(V)
Input Voltage V
IN
(V)
Overcurrent Protection Characteristics(SI-3052V)
6
5
Output Voltage Vo (V)
4
3
6V
Overcurrent Protection Characteristics(SI-3122V)
16
14
18
16
Overcurrent Protection Characteristics(SI-3152V)
Output Voltage Vo (V)
Output Voltage V
O
(V)
10V
8V
V
=13
V
16
20V
12
10
8
6
4
2
0
0
1
2
14
12
10
8
6
4
2
2
1
0
0
V
15
V
I
N
=
V
IN
1
2
3
4
5
Output Current lo (A)
6
7
3
4
5
6
7
Output Current lo (A)
0
0
1
2
3
V
IN
=
4
16V
20V
5
6
7
Output Current l
O
(A)
65
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