V18
︳
FEATURES
* Non-isolated POL Converter
* SIP / SMT Converter
* Output Current 15AMP
* Input Voltage Range 3-5.5VDC
* Output Voltage Range 0.9-3.63VDC
* 300KHz Switching Frequency
* High Efficiency to 94%
* Over Temperature Protection
* Continuous Short Circuit Protection
* Remote ON/OFF Control
* UL/C-UL60950 Certified
MODEL
NUMBER
INPUT
VOLTAGE
OUTPUT
VOLTAGE
0.75VDC
1.2VDC
SIP15-05S33A
SMT15-05S33A
3.0 – 5.5VDC
1.5VDC
1.8VDC
2.0VDC
2.5VDC
4.5 – 5.5VDC
NOTE: Nominal Input Voltage 5VDC
Q1
+VIN
SIPSMT15-05 SERIES
15 AMP
POL CONVERTERS
OUTPUT
CURRENT
15A
15A
15A
15A
15A
15A
15A
INPUT CURRENT
NO LOAD
60mA
60mA
60mA
70mA
70mA
70mA
70mA
FULL LOAD
3.658A
4.286A
5.172A
6.136A
6.742A
8.152A
10.532A
Efficiency
(%)
82
84
87
88
89
92
94
3.3VDC
L1
+VO
C1
Q2
D1
C2
R sense
+SENSE
COM
COM
Vo,set (V)
0.90
1.00
1.20
1.50
1.80
2.00
2.50
3.30
3.63
Rtrim (KΩ)
135.36
79.17
41.71
22.98
14.96
11.75
6.93
3.15
2.20
R1
PWM IC
ON/OFF
Rt
R2
ERR AMP
TRIM
Table 1. External Resistor Values
for programming output voltage
Figure 1. Simplified Schematic
1
V18
SPECIFICATIONS
All Specifications Typical At Nominal Line, Full Load, and 25
℃
Unless Otherwise Noted
INPUT SPECIFICATIONS:
Input Voltage Range ....…… Vo, set≦Vin-0.5VDC...5V ....... 3.0 – 5.5V
Under Voltage Lock-out ……………………. Power up ……..... 2.8V typ.
Power down ….... 2.7V typ.
Input Filter Type ……...………………….…..………………… Capacitive
Positive Remote on/off Control:
Module ON ……….………………….. Open Circuit or = Vin
Module OFF ……………………………………...… <0.4Vdc
GENERAL SPECIFICATIONS:
Efficiency ........................................…………..….………............ See Table
Isolation Voltage .................................…..…..….……....….... Non-isolation
Switching Frequency .............................……........................ 300KHz typ.
Over Temperature Protection …………………………………… 120℃ typ.
Operating Ambient Temperature Range ...………...…….... -40℃ to +85℃
Power De-rating Curve ……………….……….….….………. see Figure2, 3
Storage Temperature Range ...…..............……..…....... -55℃ to +125℃
MTBF ………. MIL-STD-217F, GB, 25℃, Full Load ………… 1.5Mhrs typ.
Dimensions: SIP Package: 2.00x0.50x0.327 inches (50.8x12.7x8.50 mm)
SMT Package: 1.30x0.53x0.366 inches (33.0x13.46x9.30 mm)
Structure …...….…………….………… Non-potted With Open Frame Type
Weight …………………………………………………………………….. 6.8g
OUTPUT SPECIFICATIONS:
Voltage Accuracy …………………....……………….…....…
±1.5%
max.
Transient Response: 25% Step Load Change ...............…..... <200us
Ripple and Noise, 20MHz BW (note 3) ……………..….. 20mVrms max.
50mVpk-pk max.
Temperature Coefficient ..............…...….………….......
±0.03%/C
max.
Short Circuit Protection ...................…....……..…..……….. Continuous
Line Regulation (note 1) ….……. SIP15-05S33A ………...
±0.2%
max.
SMT15-05S33A …...…..
±0.4%
max.
Load Regulation (note2) ……………….........……….…....
±0.5%
max.
Capacitive Load Low ESR ………..…..……….………. 10000uF max.
External Trim Adj. Range (see Table1) …………… Vo=0.9 – 3.63Vdc
Start up time ………………………………………………..…. 4.5ms typ.
NOTE:
1. Measured From High Line to Low Line, Vo, set=1.8Vdc
2. Measured From Full Load to Zero Load, Vo, set=3.3Vdc
3. The output noise is measured with 10uf tantalum capacitor
and 1uf ceramic capacitor across output.
4. The Input Terminal Recommend to Parallel With 100uF Capacitor
ESR<20mΩ to Reduce The Input Ripple Voltage
5. Suffix “N” to the Model Number with Negative Logic Remote on/off
Model ON ………………..………..…… Open Circuit or < 0.4VDC
Module OFF ……………………………………… >+2.8VDC to Vin
Dimensions:
SIP Packages
Mechanical Specification
All Dimensions In Inches (mm)
Tolerances
Inches: X.XX= ±0.02 , X.XXX= ±0.010
Millimeters: X.X= ±0.5 , X.XX=±0.25
0.327max
[8.30]
2.00
[50.8]
0.23
[5.8]
SMT Packages
Bottom View of Board
1.30
[33.0]
PIN CONNECTION
Pin FUNCTION
+Output
1
+Output
2
3
+Sense
4
+Output
5
Common
Common
6
+V Input
7
+V Input
8
No Pin
9
10 Trim
11 On/Off Control
1 2 3 4 5
6 7 8 9 10 11
0.50
12.7
0.310
[7.87]
0.063
[1.60]
0.14
[3.6]
0.190
[4.83]
0.297
[7.54]
0.065
[1.65]
0.366 max
[9.30]
0.010 min
[0.25]
0.100
[2.54]
0.400
[10.16]
1.000
[25.40]
+VIN
ON/OFF
1.1mm PLATED THROUGH HOLE
1.6mm PAD SIZE
LAYOUT PATTERN
TOP VIEW
Surface Mount Contact
SIP15-05S33A Derating Curve
16
14
12
10
8
6
4
2
0
0
10
Output Current(A)
Output Current(A)
SMT15-05S33A Derating Curve
16
14
12
10
8
6
4
2
0
0
10
0LFM
100LFM
200LFM
0LFM
100LFM
200LFM
20
30 40 50 60 70 80
Ambient Temperature(oC)
90 100
20
30 40 50 60 70 80
Ambient Temperature(oC)
0.075
[1.91]
0.112
[2.84]
0.048
[1.22]
L1 INDUCTOR
0.33
[8.4]
0.29
[7.4]
0.405
[10.29]
0.28
[7.1]
0.530
[13.46]
0.025
[0.64]
0.050
[1.27]
0.025
[0.64]
COM +VO TRIM +SENSE
90 100
Figure2. Typical Power De-rating for 5V IN
Figure3. Typical Power De-rating for 5V IN
2
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