Sanken Electric Co SI-3120J Datasheet
●SI-3000J Series
SI-3000J Series
5-Terminal, Multi-Function, Full-Mold, Low Dropout Voltage Dropper Type
■Features
• Compact full-mold package (equivalent to TO220)
• Output current: 2.0A
• Low dropout voltage: VDIF≤1V (at IO=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
■Applications
• For stabilization of the secondary stage of switching power supplies
• Electronic equipment
■Absolute Maximum Ratings
Parameter
DC Input Voltage
Voltage of Output Control Terminal
DC Output Current
Power Dissipation
Junction Temperature
Ambient Operating Temperature
Storage T emperature
Thermal Resistance (junction to case)
Thermal Resistance (junction to ambient air)
Symbol
VIN
VC
IO
PD1
PD2
Tj
Top
Tstg
Rth(j-c)
Rth(j-a)
Ratings
SI-3050J SI-3090J SI-3120J/3150J
25 30 35
VIN
*1
2.0
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)
(Ta=25°C)
Unit
V
V
A
W
W
°C
°C
°C
°C/W
°C/W
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●SI-3000J Series
■Electrical Characteristics
(Ta=25°C unless otherwise specified)
Ratings
Parameter
Symbol
SI-3050J SI-3090J SI-3120J SI-3150J
Unit
min. typ. max. min. typ. max. min. typ. max. min. typ. max.
Input Voltage
Output Voltage
Dropout Voltage
Line Regulation
Load Regulation
Temperature Coefficient
of Output Voltage
Ripple Rejection
Quiescent Circuit
Current
Overcurrent Protection
Starting Current
*3,5
Control Voltage (Output ON)
Control Voltage (Output OFF)
VC
T erminal
Control Current
*4
(Output ON)
Control Current
(Output OFF)
VIN
Conditions
VDIF
Conditions
Conditions
∆VOLINE
Conditions
∆VOLOAD
Conditions
∆VO/∆Ta
Conditions
RREJ
Conditions
Conditions
Iq(off)
Conditions
Conditions
VC. IH
VC. IL
IC. IH
Conditions
IC. IL
Conditions
VO
IS1
*2
6
15*110
4.90 5.00 5.10 8.82 9.00 9.18 11.76 12.00 12.24 14.70 15.00 15.30
VIN=8V, IO=1.0A VIN=12V, IO=1.0A VIN=15V, IO=1.0A VIN=18V, IO=1.0A
0.5 0.5 0.5 0.5
1.0 1.0 1.0 1.0
10 30 18 48 24 64 30 90
VIN=6 to 15V, IO=1.0A VIN=10 to 20V, IO=1.0A VIN=13 to 25V, IO=1.0A VIN=16 to 25V, IO=1.0A
40 100 70 180 93 240 120 300
VIN=8V, IO=0 to 2.0A VIN=12V, IO=0 to 2.0A VIN=15V, IO=0 to 2.0A VIN=18V, IO=0 to 2.0A
±0.5 ±1.0 ±1.5 ±1.5
VIN=8V, IO=5mA, Tj=0 to 100°CV
54 54 54 54
VIN=8V, f=100 to 120HZVIN=12V, f=100 to 120HZVIN=15V, f=100 to 120HZVIN=18V, f=100 to 120H
Iq
310310310310
V
IN
=8V, IO=0A VIN=12V, IO=0A VIN=15V, IO=0A VIN=18V, IO=0A
0.5 1.0 0.5 1.0 0.5 1.0 0.5 1.0
VIN=8V, IO=0A, VC=0.4V VIN=12V, IO=0A, VC=0.4V VIN=15V, IO=0A, VC=0.4V VIN=18V, IO=0A, VC=0.4V
2.1 2.1 2.1 2.1
VIN=8V VIN=12V VIN=15V VIN=18V
2.0 2.0 2.0 2.0
0.8 0.8 0.8 0.8
20 20 20 20
–0.3 –0.3 –0.3 –0.3
*2
25*113
*2
IO≤1.5A
IO≤2.0A
IN
=12V, IO=5mA, Tj=0 to 100°CV
IN
=15V, IO=5mA, Tj=0 to 100°CV
VC=2.7V
VC=0.4V
27*116
IN
*2
27
*1
=18V, IO=5mA, Tj=0 to 100°C
Z
V
V
V
mV
mV
mV/°C
dB
mA
mA
A
V
µA
mA
*1: VIN(max) and IO(max) are restricted by the relation PD(max)=(VIN-VO)•IO=20(W).
*2: Refer to the dropout voltage.(Refer to Setting DC Input Voltage on page 7.)
*3: IS1 is specified at –5(%) drop point of output voltage VO on the condition that VIN=VO+3V, IO=0.5A.
*4: Output is ON even when output control terminal VC 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 IC regulator. Therefore, avoid using it for the f ollowing applications as it may cause
starting errors:
(1) Constant current load (2) Plus/minus power (3) Series power (4) VO adjustment by raising ground voltage
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