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GSI-3000N Series
SI-3000N Series
3-Terminal, Full-Mold, Low Dropout Voltage Dropper Type
IFeatures
* * * * Compact full-mold package (equivalent to TO220) Output current: 1.0A Low dropout voltage: VDIF1V (at IO=1.0A) Built-in foldback overcurrent, overvoltage, thermal protection circuits
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) Thermal Resistance (junction to ambient air) Symbol SI-3050N VIN IO PD1 PD2 Tj Top Tstg Rth(j-c) Rth(j-a) 25 Ratings SI-3090N/3120N 30 1.0*2 14(With infinite heatsink) 1.5(Without heatsink, stand-alone operation) -40 to +125 -30 to +100 -40 to +125 7.0 66.7(Without heatsink, stand-alone operation) SI-3150N 35 V A W W C C C C/W C/W Unit
(Ta=25C)
8
GSI-3000N Series
IElectrical Characteristics
Ratings Parameter Input Voltage SI-3000N *1 Output Voltage SI-3000NA Symbol min. VIN VO Conditions VDIF Dropout Voltage Conditions 1.0 Conditions Line Regulation Load Regulation Temperature Coefficient of Output Voltage Ripple Rejection Quiescent Circuit Current Overcurrent Protection Starting Current*4,5 VOLINE Conditions VOLOAD Conditions VO/Ta Conditions RREJ Conditions Iq Conditions IS1 Conditions 1.2 VIN=8V 10 40 0.5 VIN=8V, IO=5mA, Tj=0 to 100C 54 VIN=8V, f=100 to 120HZ 3 VIN=8V, IO=0A 1.2 VIN=12V 10 30 100 18 70 1.0 VIN=12V, IO=5mA, Tj=0 to 100C 54 VIN=12V, f=100 to 120HZ 3 VIN=12V, IO=0A 1.2 VIN=15V 10 VIN=6 to 15V, IO=0.5A VIN=8V, IO=0 to 1.0A 6*3 4.80 4.90 5.00 5.00 SI-3050N typ. max. 15*2 5.20 5.10 0.5 min. 10*3 8.64 8.82 9.00 9.00 SI-3090N typ. max. 20*2 9.36 9.18 0.5 IO0.5A 1.0 IO1.0A 48 180 24 93 1.5 VIN=15V, IO=5mA, Tj=0 to 100C 54 VIN=15V, f=100 to 120HZ 3 VIN=15V, IO=0A 10 64 240 1.0 min. 13*3 11.52 11.76 12.00 12.00 SI-3120N typ. max. 25*2 12.48 12.24 0.5
(Ta=25C unless otherwise specified)
SI-3150N min. 16*3 14.40 14.70 15.00 15.00 typ. max. 27*2 15.60 15.30 0.5
Unit V V
VIN=8V, IO=0.5A
VIN=12V, IO=0.5A
VIN=15V, IO=0.5A
VIN=18V, IO=0.5A
V 1.0 30 120 1.5 VIN=18V, IO=5mA, Tj=0 to 100C 54 VIN=18V, f=100 to 120HZ 3 VIN=18V, IO=0A 1.2 VIN=18V A 10 mA dB 90 300
mV mV mV/C
VIN=10 to 20V, IO=0.5A VIN=12V, IO=0 to 1.0A
VIN=13 to 25V, IO=0.5A VIN=15V, IO=0 to 1.0A
VIN=16 to 27V, IO=0.5A VIN=18V, IO=0 to 1.0A
*1: "A" may be indicated to the right of the Sanken logo. *2: VIN(max) and IO(max) are restricted by the relation PD(max)=(VIN-VO)*IO=14(W). *3: Refer to the dropout voltage.(Refer to Setting DC Input Voltage on page 7.) *4: IS1 is specified at -5(%) drop point of output voltage VO on the condition that VIN=VO+3V, IO=0.5A. *5: 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
3.20.2
7.90.2 40.2 0.5
(unit: mm)
100.2
4.20.2
2.80.2
16.90.3
a
2max.
b
2.60.15
a. Part Number b. Lot Number Pin Arrangement q GND w VO e VIN
(13.5)
0.950.15 0.85+0.2 -0.1
P3.40.1x2=6.8
0.45 -0.1
+0.2
q
w
e
Plastic Mold Package Type Flammability: UL94V-0 Weight: Approx. 2.3g
9
GSI-3000N Series
IBlock Diagram
Tr1
3
2
MIC
Reg.
Drive
Protection
Amp.
1
IStandard External Circuit
C0
D1 VIN 3 DC Input GND + *1 C1 C2 SI-3000N 1 + C0 DC Output 2
VREF
*2
VO
*1 C1 C2
*2 D1
GND
: Output capacitor (47 to 100F) : Oscillation prevention capacitor (C1: Approx. 47F, C2: 0.33F) These capacitors are required if the input line is inductive and in the case of long wiring. Tantalum capacitors are recommended for C1 and C0, particularly at low temperatures. : Protection diode This diode is required for protection against reverse biasing of the input and output. Sanken EU2Z is recommended.
ITa-PD Characteristics
15
Infinite heatsink
With Silicon Grease Heatsink: Aluminum
20 0x 20 0
Power Dissipation PD (W)
10
10
75
5
(2 .3 C /W (5. x7 ) 2 5x C/ 2m W m ) (7. 6C /W )
0x 1
00 x2
x2 m m
mm
Without heatsink
0 -30 0 25 50 75 100
Ambient Temperature Ta (C)
PD=IO*[VIN(mean)-VO]
10
GSI-3000N Series
ITypical Characteristics
(Ta=25C)
IO vs. VDIF Characteristics
0.6
Temperature Coefficient of Output Voltage(SI-3050N)
5.06 VIN=8V IO =0A VO =5V
Output Voltage(SI-3050N)
6
0.5
5.04
5
Dropout Voltage VDIF (V)
Output Voltage VO (V)
Output Voltage VO (V)
0.4
5.02
4
IO
0.5A 0.75A 3 4
0.25A
0.3
5.00
3
0.2 0.1 0 0
4.98
2
4.96 4.94 -40 -20
1
0.2
0.4
0.6
0.8
1.0
0
20
40
60
80 100 120 140
0 0
1
2
1. 0A
5
=0
A
6
Output Current IO (A)
Ambient Temperature Ta (C)
Input Voltage VIN (V)
Output Voltage(SI-3120N)
14 12
Overcurrent Protection Characteristics(SI-3050N)
6
Overcurrent Protection Characteristics(SI-3120N)
14
5
12V
12
Output Voltage VO (V)
Output Voltage VO (V)
=6 V
4
15
VI
3
N=
13
8 6 4 2 0 0
IO=0A =0.5A =1.5A
V 15 V
V
8 6 4 2
22V
2
1
2
4
6
8
10
12
14
16
0 0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0 0
0.5
1.0
1.5
18
Input Voltage VIN (V)
Output Current IO (A)
Output Current IO (A)
Thermal Protection Characteristics(SI-3050N)
6 5
Output Voltage VO (V)
4 VIN=8V IO=10mA
3 2
1 0 0
20
60
100
140
180
Case Temperature TC (C)
Note on Thermal Protection:
The thermal protection circuit is intended for protection against heat during instantaneous short-circuiting. Its operation is not guaranteed for continuous heating condition such as short-circuiting over extended periods of time.
V
10V
VIN
10
Output Voltage VO (V)
8V
10
2.0
11

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