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 GSI-3000V Series
SI-3000V Series
3-Terminal, Low Dropout Voltage Dropper Type
IFeatures
* * * * TO-3P package 3-terminal regulator Output current: 2.0A Low dropout voltage: VDIF1V (at IO=2.0A) Built-in foldback overcurrent protection circuit
IApplications
* For stabilization of the secondary stage of switching power supplies * Electronic equipment
IAbsolute 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 VIN IO PD1 PD2 Tj Top Tstg Rth(j-c) 25 2.0 50(TC=25C) 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
(Ta=25C)
58
GSI-3000V Series
IElectrical Characteristics
Ratings Parameter Input Voltage Output Voltage Symbol min. VIN VO Conditions VDIF Dropout Voltage Conditions 1.0 Conditions Line Regulation Load Regulation Temperature Coefficient of Output Voltage Ripple Rejection Overcurrent Protection Starting Current VOLINE Conditions VOLOAD Conditions VO/Ta RREJ Conditions IS1 Conditions 2.4 VIN=8V 2.4 VIN=16V 10 40 0.5 54 30 100 VIN=6 to 15V, IO=1.0A VIN=8V, IO=0 to 2.0A IO=2.0A 20 80 +1.5 54 f=100 to 120HZ 2.4 VIN=20V 60 200 20 80 1.5 54 60 200 6 4.9 5.0 VIN=8V, IO=1.0A 0.5 IO=1.0A 1.0 1.0 SI-3052V typ. max. 15 5.1 min. 13 11.8 12.0 VIN=16V, IO=1.0A 0.5 SI-3122V typ. max. 25 12.2 min. 16 14.8 15.0 VIN=20V, IO=1.0A 0.5 SI-3152V typ. max. 25 15.2
(Ta=25C)
unit V V
V
mV mV mV/C dB A
VIN=13 to 25V, IO=1.0A VIN=16V, IO=0 to 2.0A
VIN=16 to 25V, IO=1.0A VIN=20V, IO=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). *: A foldback type overcurrent protection circuit is built into the IC 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) VO adjustment by raising ground voltage
IExternal Dimensions
(unit:mm)
2.0
15.60.3 13.60.2 9.60.2
4.8max. 2.0max.
19.90.3
a b
14.90.3
3.20.1
4.0
a. Part Number b. Lot Number Pin Arrangement q GND w VO (backside of case) e VIN Plastic Mold Package Type (TO-3P) Flammability: UL94V-0 Weight: Approx. 6g
20.0min.
2.0 -0.1
+0.2
3.5
3.0 -0.1
+0.2 +0.2 +0.2
1.05 -0.1 5.450.1 15.80.2 5.450.1
0.65 -0.1 1.7
+0.2 -0.3
q
w
e
59
GSI-3000V Series
IBlock Diagram
3
Tr1
2
M1
R2
R1
R4
Protection
Drive
Reg.
Amp. VREF
R5
R3 1
IStandard External Circuit
C1: Oscillation prevention capacitor (approx. 0.33F) Connection to terminal No.3 must be made as short as possible. C2: Output capacitor (47 to 100F) 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. Note 1: Prevention of oscillation at low temperatures At low temperatures, oscillation may occur unless an output capacitor with good tan is used. Be sure to connect a tantalum capacitor (approx. 10F) 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).
D1
VIN 3 DC input C1 GND SI-3000V 1 2 + -
VO DC output C2 GND
ITa-PD Characteristics
24
200x200x2 (2.3C/W)
Power Dissipation PD (W)
20 16 12 8 4 100x100x2 (5.2C/W) 75x75x2 (7.6C/W)
Without Mica With Silicon Grease Heatsink: Aluminum Unit: mm
Without heatsink
0 -20 0 25 50 75 100
Ambient Temperature Ta (C)
60
GSI-3000V Series
ITypical Characteristics
(Ta=25C)
IO vs. VDIF Characteristics
0.8
Temperature Coefficient of Output Voltage(SI-3052V)
5.06 VIN=8V lO=1V 5.04
Circuit Current(SI-3052V)
70 60
Dropout Voltage VDIF (V)
Ground Current lG (mA)
Output Voltage VO (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
Output Current lO (A)
Ambient Temperature Ta (C)
5
10
15
17.5
Input Voltage VIN (V)
Output Voltage(SI-3052V)
6
Output Voltage(SI-3122V)
16 14
Output Voltage(SI-3152V)
18 16
5
Output Voltage Vo (V)
Output Voltage VO (V)
Output Voltage VO (V)
12 10 8 6 4 2 0 0 2 4 6 8 10 12 14 16
14 12 10 8
L=
4
=2
3
RL
2
=6 RL
t
o
7
.5
to
.5
to
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 VIN (V)
Input Voltage VIN (V)
Input Voltage VIN (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 VO (V)
10V 8V
V =13 6V 1
20V
12 10 8 6 4 2 0 0 1 2
14 12 10 8 6 4 2
2 1 0 0
1
VI
5V
N=
VIN
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
VIN=
4
16V
20V
5
6
7
Output Current lO (A)
61


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