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qSI-3000KS Series
SI-3000KS Series
Surface-Mount, Low Current Consumption, Low Dropout Voltage Dropper Type
sFeatures
* * * * * * * * * Compact surface-mount package (SOP-8) Output current: 1.0 A Low-ESR capacitor can be used. Low current consumption Iq 350 A (IO = 0 A, VC = 2 V) Low current consumption Iq (OFF) 1 A (VC = 0 V) Low dropout voltage VDIF 0.6 V (IO = 1 A) 4 types of output voltages (1.8 V, 2.5 V, 3.3 V, and variable type) available Output ON/OFF control pin compatible with LS-TTL Built-in dropping type overcurrent, thermal protection circuits
sApplications
* Local power supplies * Battery-driven electronic equipment
sAbsolute Maximum Ratings
Parameter DC Input Voltage Output Control Pin Voltage Output Current Power Dissipation Junction Temperature Storage Temperature Thermal Resistance (Junction to Ambient Air) Thermal resistance (Junction to Lead (pin 7)) Symbol VIN*1 VC IO*1 PD*1, *2 Tj Tstg Rth(j-a)* Rth(j-l) Ratings 17 VIN 1.0 0.76 -40 to +125 -40 to +125 130 22 Unit V V A W C C C/W C/W
(Ta=25C)
*1: VIN (max) and IO (max) are restricted by the relationship PD = (VIN - VO) x IO. Calculate these values referring to the power dissipation vs. copper area data shown in this document. *2: When mounted on a glass epoxy board measuring 1600 mm2 (with 2% copper area).
qSI-3000KS Series
sElectrical Characteristics
Ratings Parameter Input Voltage Output Voltage (reference voltage for SI-3102KS) Symbol VIN VO (VREF) Conditions VDIF Dropout Voltage Conditions Conditions Line Regulation Load Regulation Quiescent Circuit Current Off Circuit Current Temperature Coefficient of Output Voltage Ripple Rejection Overcurrent Protection Starting Current*2 Control Voltage (Output ON)*3 Control Voltage (Output OFF) VC PIN Control Current (Output ON) Control Current (Output OFF) Output OFF Voltage VOLINE VOLOAD Conditions Iq Conditions Iq(OFF) Conditions VO/Ta Conditions RREJ IS1 Conditions VC, IH VC, IL IC, IH Conditions IC, IL Conditions VO(OFF) 0.5 0.5 -5 0 -5 0 VC=0V 1.2 VIN=3.3V (VO=2.5V) 2.0 0.8 40 2.0 0.8 40 VC=2V -5 VIN=3.3V, VC=0V 0.3 Tj=0 to 100C (VO=2.5V) 55 1.2 VIN=2.5V 2.0 SI-3012KS (variable type) min. 2.4 1.24 1.28 1.32 0.3 IO=0.5A (VO=2.5V) 0.6 IO=1A (VO=2.5V) 10 40
VIN=3.3V, IO=0 to 1A (VO=2.5V)
(Unless otherwise specified, Ta = 25C, Vc = 2 V)
SI-3018KS min.
*1
SI-3025KS max. 1.836 min.
*1
SI-3033KS max. 2.55 0.4 min.
*1
Unit max. 3.366 0.4
typ.
max.
typ. 1.800 - -
typ. 2.50
typ. 3.300
1.764
2.45
3.234
VIN=3.3V, IO=10mA
VIN=2.5V, IO=10mA
VIN=3.3V, IO=10mA IO=0.5A
VIN=5V, IO=10mA IO=0.5A
V
V 0.6
0.6 IO=1A 10 VIN=2.5 to 6V, IO=10mA 40 VIN=2.5V, IO=0 to 1A 350 VIN=2.5V, IO=0A, VC=2V 1 VIN=2.5V, VC=0V 0.3 Tj=0 to 100C 55 VIN=3.3V, f=100 to 120HZ 1.2 VIN=3.3V VIN=3.3V, VC=0V 0.3 Tj=0 to 100C 55 IO=1A
0.6 IO=1A 10 VIN=3.3 to 8V, IO=10mA 40 VIN=3.3V, IO=0 to 1A 350 VIN=3.3V, IO=0A, VC=2V 1 VIN=5V, VC=0V 0.3 Tj=0 to 100C 55
15 VIN=5 to 10V, IO=10mA 50 VIN=5V, IO=0 to 1A 350 VIN=5V, IO=0A, VC=2V 1
mV mV
Conditions VIN=3.3 to 8V, IO=10mA (VO=2.5V)
350
VIN=3.3V, IO=0A, VC=2V, R2=24k
A A
mV/C dB A V
1
Conditions VIN=3.3V, f=100 to 120HZ (VO=2.5V)
VIN=3.3V, f=100 to 120HZ
VIN=5V, f=100 to 120HZ 1.2 VIN=5V 2.0
0.8 40 0 0.5 -5 0
0.8 40
A A
0.5
V
*1 : Refer to the description on the dropout voltage. *2 : The Is1 is specified as the 5% drop point of output voltage VO on the condition that VIN = VO + 1 V, and IO = 10 mA. *3 : Output is OFF when the output control pin (VC pin) is open. Each input level is equivalent to that for LS-TTL. Therefore, the device can be driven directly by an LS-TTL circuit.
sExternal Dimensions
5.10.4 1.27 0.40.1 0.15+0.1 -0.05
(Unit : mm)
8
7
6
5
1
2
3
4
1.550.15
0~
0.995max.
10
1.27
Pin Arrangement q VC w VIN e VO r Sence (ADJ for SI-3012KS) t GND y GND u GND i GND Plastic Mold Package Type Flammability: UL 94V-0 Weight: Approx. 0.1 g
4.40.2
0.50.1 0.050.05 1.50.1
0.10 0.40.1 0.12 M
6.2
qSI-3000KS Series
sBlock Diagram
qSI-3012KS qSI-3018KS, SI-3025KS, SI-3033KS
VIN 2
3 VOUT
VIN 2
3 VOUT
4
VC 1 +
4 ADJ TSD 8 7 REF 6 5 GND
VC 1 +
Sense TSD 8 7 REF 6 5 GND
sStandard Circuit Connection Diagram
qSI-3012KS qSI-3018KS, SI-3025KS, SI-3033KS
VIN 2
+
VO 3
R1
CO
VIN 2
VO 3 CO
CIN
VC GND ADJ 1 4 5 to 8
Load
CIN
sense VC GND 4 1 5 to 8
Load
R2
R2
R1, R2: Output voltage setting resistors The output voltage can be set by connecting R1 and R2 as shown above. The recommended value of R2 is 24 k.
R1=(VO-VADJ)/(VADJ/R2)
CIN : Input capacitor (22 F or larger) This capacitor is necessary if an inductance is included in the input line or if the wiring length is long. CO : Output capacitor (22 F or larger) The SI-3000KS series designed for use with very low-ESR ceramics output capacitor. When using the electrolytic capacitor, the SI-3000KS series may oscillate at a low temperature.
qSI-3000KS Series
sExample of Solder Pattern Design
L
L
b2
e1 l2 e1 B1 L e b e e e e e *1 B2
Symbol e1 e 1 2 L b2 l2
Dimensions (mm) 5.72 1.270.15 0.2 0.2 to 0.5 0.2 0.6 0.76 L+1+2
GND pattern b2 8 7 6 5 l2
(Reference value conforming to EIAJ Standard ED-7402-1) *1 The inner frame stage on which a monolithic IC is mounted is directly connected to the GND pins (pins 5 through 8). By expanding the area of the copper connected to the GND pins, the heat radiation can be improved. It is recommended to design the solder pattern by opening the insulation film of the solder patterns of pins 5, 6, 7, and 8, on the wide GND pattern as shown in Figure 1.
e1
1
2
3
4
e
e Figure 1
e
sReference Data
Thermal resistance vs. Copper area
140 Area of PC board : 40x40mm 1.2
Power dissipation vs. Copper area
Tj=100C Area of PC board : 40x40mm Ta=25C
Thermal resistance j-a (C/W)
120
Power dissipation PD (W)
1
Ta=50C Ta=80C
0.8
100
0.6 0.4
80
60 0.2 40 10
100 Copper area (mm2)
1000
0 10
100 Copper area (mm2)
1000
* Calculating junction temperature Measure the temperature TL of the lead of the GND pin (pin 7) by using a thermocouple, and substitute the measured value into the following expression to calculate the junction temperature.
Tj=PD x j-L + TL
( j-L = 22C/W)
qSI-3000KS Series
sTaping Specifications
Carrier tape Surface resistance of embossed tape: 100 k maximum (among 10 pockets)
Leader Vacant seal section Trailer IC compartments Vacant seal section Cover tape
(Unit : mm)
160 to 240mm (About 25 pockets)
1,000PCS (1,000 pockets)
160 to 240mm (About 25 pockets) 400 to 600mm
4
2
8
1.55
Tape draw-out direction
t=3 5.5 12 5.75 (4.75) 5.55
7.0
2
2.1
6.7
Reel: Number of packed products: 1000
Hole
Hole B
1.5
60
60
Hole
Hole
130.2
60 180
R2 3 2
Hole
Hole
1
0
Hole
Hole
130.3 15.41.0
Expanded view of center
2
5
1 3
.5 10
Hole
4
Hole
5
30
11.9
Hole
10
Hole
3
R2
60
2
3
60
qSI-3000KS Series
sTypical Characteristics Examples of SI-3012KS and SI-3025KS
(Ta=25C) *Vout=2.5 V for SI-3012KS (RS=24 k)
Dropout voltage
1
Rise characteristics
3
Line regulation
2.54 2.52
0.8
2.50 Dropout voltage V
0.6
Output voltage V
Output voltage V
2 IO=0 to 1A 0.25A step 1
2.48 2.46 2.44 2.42 2.40 0 IO=0 to 1A 0.25A step
0.4
0.2
0
0.2
0.4 0.6 Output current A
0.8
1
0
1
2 Input voltage V
3
4
2
4 6 Input voltage V
8
10
Load regulation
2.52
Overcurrent protection characteristics
3
Input voltage vs. Quiescent current
600 IO=0A VC=2V
2.50 2 VIN=3.3V 4V 5V 6V
Quiescent Current A
500
Output voltage V
2.48 VIN=3.3V 4V 5V 6V 8V
Output voltage V
400
2.46
300
2.44
1
200
2.42
100
2.40 0
0.2
0.4 0.6 Output current A
0.8
1
0
0.2
0.4
0.6 0.8 1 1.2 Output current A
1.4
1.6
0
2
4
6 8 10 12 Input voltage V
14
16
18
Circuit current
60
Control terminal voltage vs. Output voltage
3
Control terminal voltage vs. Control terminal current
30 25
GND current mA
IO=1A
Output voltage V
40
2
IO=0A
Control terminal current A
2
20
15
0.75A 20 0.5A 0.25A 0 2 4 Input voltage V 6 0A 8
1
10 5
0
0.5 1 1.5 Control ternimal voltage V
0
1 2 3 Control terminal voltage V
4
qSI-3000KS Series
sTypical Characteristics Examples of SI-3033KS
(Ta=25C)
Dropout voltage
1
Rise characteristics
4
Line regulation
3.34 3.32
0.8
3
Output voltage V
3.30
Dropout voltage V
0.6
Output voltage V
3.28 3.26 3.24
2
0.4
IO=0 to 1A 0.25A step
0.2
1
3.22 3.20 0
IO=0 to 1A 0.25A step
0
0.2
0.4 0.6 Output current A
0.8
1
0
1
2 Input voltage V
3
4
2
4 6 8 Input voltage V
10
12
Load regulation
3.34 3.32
Overcurrent protection characteristics
4
Input voltage vs. Quiescent current
600 IO=0A VC=2V
500
3 Quiescent Current A 1.4 1.6
Output voltage V
3.30
Output voltage V
400
3.28 3.26 3.24 3.22 3.20 0 VIN=4V 5V 6V 8V
2
VIN=4V 5V 6V
300
200
1
100
0.2
0.4 0.6 Output current A
0.8
1
0
0.2
0.4
0.6 0.8 1 1.2 Output current A
0
2
4
6 8 10 12 Input voltage V
14
16
18
Circuit current
60
Control terminal voltage vs. Output voltage
4
Control terminal voltage vs. Control terminal current
30
25
3
GND current mA
Output voltage V
40 IO=1A
Control terminal current A 2
20
IO=0A 2
15
0.75A
20
10
0A
0.5A 0.25A
0 2 4 Input voltage V 6 8
1
5
0
0.5 1 1.5 Control terminal voltage V
0
1 2 3 Control terminal voltage V
4

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