SANKEN SI

●SI-3000V Series
SI-3000V Series
3-Terminal, Low Dropout Voltage Dropper Type
■Features
•
•
•
•
TO-3P package 3-terminal regulator
Output current: 2.0A
Low dropout voltage: VDIF≤1V (at IO=2.0A)
Built-in foldback overcurrent protection circuit
■Applications
• For stabilization of the secondary stage of switching power supplies
• Electronic equipment
■Absolute Maximum Ratings
Parameter
(Ta=25°C)
Ratings
Symbol
SI-3052V
Unit
SI-3122V/3152V
DC Input Voltage
VIN
DC Output Current
IO
2.0
A
PD1
50(TC=25°C)
W
Power Dissipation
25
PD2
30
V
1.6(Without heatsink, stand-alone operation)
W
Junction Temperature
Tj
–30 to +125
°C
Ambient Operating Temperature
Top
–20 to +100
°C
Tstg
–30 to +125
°C
Rth(j-c)
2.0
°C/W
Storage Temperature
Thermal Resistance (junction to case)
■Electrical Characteristics
(Ta=25°C)
Ratings
Parameter
Symbol
SI-3052V
min.
Input Voltage
Output Voltage
VIN
6
VO
4.9
Conditions
max.
15
13
5.0
5.1
11.8
min.
VIN=8V, IO=1.0A
VDIF
Dropout Voltage
SI-3122V
typ.
max.
25
16
12.0
12.2
14.8
0.5
Conditions
Conditions
Load Regulation
Temperature Coefficient of Output Voltage
Ripple Rejection
30
VIN=6 to 15V, IO=1.0A
15.0
15.2
25
0.5
0.5
1.0
1.0
40
20
60
100
80
20
60
mV
VIN=16 to 25V, IO=1.0A
200
80
200
VIN=16V, IO=0 to 2.0A
VIN=20V, IO=0 to 2.0A
∆VO/∆Ta
±0.5
+1.5
±1.5
RREJ
54
54
54
IS1
V
V
VIN=8V, IO=0 to 2.0A
Conditions
V
VIN=20V, IO=1.0A
VIN=13 to 25V, IO=1.0A
Conditions
Overcurrent Protection
Starting Current
max.
IO=2.0A
10
∆VOLOAD
Conditions
unit
typ.
IO=1.0A
∆VOLINE
Conditions
min.
VIN=16V, IO=1.0A
1.0
Line Regulation
SI-3152V
typ.
mV
mV/°C
dB
f=100 to 120HZ
2.4
2.4
VIN=8V
2.4
VIN=16V
A
VIN=20V
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
●SI-3000V Series
2.0
(unit:mm)
15.6±0.3
13.6±0.2
9.6±0.2
4.0
Part Number
4.8max.
Lot Number
φ 3.2±0.1
2.0max.
14.9±0.3
19.9±0.3
■Outline Drawing
Plastic Mold Package Type (TO-3P)
Flammability: UL94V-0
Weight: Approx. 6g
3.5
20.0min.
+0.2
2.0 –0.1
3.0
+0.2
–0.1
+0.2
5.45±0.1
Terminal Connections
+0.2
1.05 –0.1
0.65 –0.1
5.45±0.1
1.7
+0.2
–0.3
q Output
w Input (backside of case)
e Ground
15.8±0.2
q
w
e
■Block Diagram
Tr1
R1
R4
VREF
Protection
Reg.
Drive
R2
M1
2
Amp.
3
R5
R3
1
63
●SI-3000V Series
■Standard External Circuit
D1
VO
VIN
3
SI-3000V
DC input
2
DC output
1
+
–
C1
C1: Oscillation prevention capacitor (approx. 0.33µF)
Connection to terminal No.3 must be made as short as
possible.
C2: Output capacitor (47 to 100µF)
Connection to terminal No.2 must be made as short as
possible.
D1: Protection diode (RM1Z)
Required for protection against reverse biasing of input and
output.
C2
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 parallel with output capacitor C2.
Note 2: An isolation type diode is provided from input to ground
and also from output to ground. These may be destroyed if the device is reverse biased. In this case,
use a diode with low VF to protect them.
Note 3: The output voltage may not be adjusted by raising the
ground voltage (using a diode or resistor).
■Ta-PD Characteristics
Power Dissipation PD (W)
24
200×200×2 (2.3°C/W)
20
Without Mica
With Silicon Grease
Heatsink: Aluminum
Unit: mm
16
12
100×100×2 (5.2°C/W)
75×75×2 (7.6°C/W)
8
4
Without heatsink
0
–20
0
25
50
75
Ambient Temperature Ta (°C)
64
100
●SI-3000V Series
■Typical Characteristics
(Ta=25°C)
Temperature Coefficient of Output Voltage(SI-3052V)
Circuit Current(SI-3052V)
5.06
70
VIN=8V
lO=1V
VO=5V
60
0.4
0.2
Ground Current lG (mA)
Output Voltage VO (V)
0.6
5.02
5.00
4.98
4.96
1.5
2.0
4.94
–60 –40 –20
Rise Characteristics(SI-3052V)
Output Voltage Vo (V)
.5
to
∞Ω
4
=2
RL
2
1
20
40 60
3
4
14
16
12
10
∞Ω
o
8
=6
RL
6
5
6
7
t
4
N=
6V
3
VI
2
5V
1
1
2
4
6
8
10
12
14
2
3
4
5
Output Current lo (A)
6
7
R
to
∞
Ω
L=
6
4
0
2
14
16
V
=13
V
6
1
10
6
8
10
12
14
16
18
Overcurrent Protection Characteristics(SI-3152V)
18
12
4
Input Voltage VIN (V)
16
8
6
4
0
0
.5
7
8
0
16
2
1
10
2
VIN
8V
4
12
Overcurrent Protection Characteristics(SI-3122V)
Output Voltage Vo (V)
10V
17.5
14
Input Voltage VIN (V)
Overcurrent Protection Characteristics(SI-3052V)
15
10
Rise Characteristics(SI-3152V)
18
0
0
6
5
0A
5
Input Voltage VIN (V)
2
2
1.0A
0.5A
0
0
80 100 120 140
16
Input Voltage VIN (V)
0
0
0
Output Voltage VO (V)
Output Voltage VO (V)
5
1
lo=2.0A
1.5A
Rise Characteristics(SI-3122V)
6
0
0
20
Ambient Temperature Ta (°C)
Output Current lO (A)
3
30
16V
1.0
40
14
VIN=
0.5
Output Voltage VO (V)
0
50
10
20V
0
Output Voltage Vo (V)
Dropout Voltage VDIF (V)
5.04
20V
IO vs. VDIF Characteristics
0.8
12
10
8
6
4
2
1
2
3
4
5
Output Current lo (A)
6
7
0
0
1
2
3
4
5
6
7
Output Current lO (A)
65