1/3
VIAS1-SIP Series DC-DC Converter
Rev. C
Description
Designed to convert fixed volt-
ages into an isolated regulated
voltage, the VIAS1-SIP series is
well suited for providing board-
mount local supplies in a wide
range of applications, including
mixed analog/digital circuits, test
& measurement equip.,
process/machine controls, data-
com/telecom fields, etc...
Features
·Isolated & Regulated 1 W output
·High efficiency to 66%
·Dual voltage output
·Small footprint
·SIP package style
·Industry standard pinout
·UL94-V0 package
·No heatsink required
·1K Vdc isolation
·Temperature range: -40°C~+85°C
·No external component required
·Low cost
Model
Number
VIAS1-S5-D5-SIP
VIAS1-S5-D9-SIP
VIAS1-S5-D12-SIP
VIAS1-S5-D15-SIP
VIAS1-S12-D5-SIP
VIAS1-S12-D9-SIP
VIAS1-S12-D12-SIP
VIAS1-S12-D15-SIP
VIAS1-S24-D5-SIP
VIAS1-S24-D9-SIP
VIAS1-S24-D12-SIP
VIAS1-S24-D15-SIP
Input Voltage
Nominal
Range
5 Vdc
4.75~5.25 Vdc
5 Vdc
4.75~5.25 Vdc
5 Vdc
4.75~5.25 Vdc
5 Vdc
4.75~5.25 Vdc
12 Vdc
11.4~12.6 Vdc
12 Vdc
11.4~12.6 Vdc
12 Vdc
11.4~12.6 Vdc
12 Vdc
11.4~12.6 Vdc
24 Vdc
24 Vdc
24 Vdc
24 Vdc
22.8~25.2 Vdc
22.8~25.2 Vdc
22.8~25.2 Vdc
22.8~25.2 Vdc
Output
Voltage
±5 Vdc
±9 Vdc
±12 Vdc
±15 Vdc
±5 Vdc
±9 Vdc
±12 Vdc
±15 Vdc
±5 Vdc
±9 Vdc
±12 Vdc
±15 Vdc
Output Current
Max.
Min.
±100 mA
±10 mA
±56 mA
±6 mA
±42 mA
±5 mA
±33 mA
±4 mA
±100 mA
±10 mA
±56 mA
±6 mA
±42 mA
±5 mA
±33 mA
±4 mA
±100 mA
±56 mA
±42 mA
±33 mA
±10 mA
±6 mA
±5 mA
±4 mA
Efficiency
54%
64%
64%
64%
55%
60%
66%
64%
54%
64%
64%
64%
Package
Style
SIP
SIP
SIP
SIP
SIP
SIP
SIP
SIP
SIP
SIP
SIP
SIP
Note:
1. All specifications measured at TA=25°C, humidity <75%, nominal input voltage and rated output load unless
otherwise specified.
Output Specifications
Item
Output power
Line Regulation
Load Regulation
Output voltage accuracy
Temperature drift
Output ripple
Output noise
Switching frequency
Test conditions
For Vin change of ±5%
10% to 100% full load
100% full load
100% full load
20 MHz Bandwidth
20 MHz Bandwidth
Full load, nominal input
10
50
100
Min.
0.1
Typ.
Max.
1
0.25
±1
±3
0.03
20
100
Units
W
%
%
%
%/°C
mVp-p
mVp-p
KHz
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062
www.v-infinity.com
1-866-372-1258
2/3
VIAS1-SIP Series DC-DC Converter
Rev. C
General Specifications
Short circuit protection
Temperature rise at full load
Cooling
Operating temperature range
Storage temperature range
Soldering temperature
Storage humidity range
Case material
MTBF
Burn-in
1 second
25°C Max, 15°C Typ.
Free air convection
-40°C to +85°C
-55°C to +125°C
300°C (1.5mm from case for 10 sec.)
≤95%
Plastic (UL94-V0)
>3,500,000 hrs.
At +85°C, for 4 hours at no-load and 4 hours at full load.
Isolation Specifications
Item
Isolation Voltage
Insulation Resistance
Test Conditions
Tested for 1 min.
Test at 500 Vdc
Min.
1000
1000
Typ.
Max.
Units
Vdc
M
Ω
Typical Characteristics
Temperature Derating Graph
Operating Temp.(
C
)
Outline Dimensions &
Recommended Layout Pattern
27.5 0
(1.083)
+0.50
+0.020
R ECOMMENDED FO OTPRINT
)
B ottom v iew,grid:2.54mm( 0.1inc h),
diameter:1:00mm(0.039i nch)
12.00
( 0. 472)
(0 6 0
0
.1
4.10
0
1
2
7
9 10
1.25
(0.049)
1 2
7
9 10
2.32
(0.091)
2.54
(0.10 0)
No t e:
Un i t:mm(in ch )
Pin secti on :0. 50 *0 .3mm (0.02 0*0 . 012 in ch)
Gen eral tol er ances :
+
0 . 25mm (
+
0 .010 i nch)
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062
9.50
( 0.374 )
www.v-infinity.com
1-866-372-1258
3/3
VIAS1-SIP Series DC-DC Converter
Rev. C
Application Notes:
- Requirement on output load
To ensure this module can operate efficiently and
reliably, a minimum load is specified for this kind of
DC/DC converter in addition to a maximum load
(namely full load). During operation, make sure the
specified range of input voltage is not exceeded, the
minimum output load is not less than 10% of
the full load, that this product should never be
operated under no load! If the actual output power is
very small, please connect a resistor with proper
resistance at the output end in parallel to increase
the load, or use our company’s products with a lower
rated output power (VIAS1-SIP series).
- Overload Protection
Under normal operating conditions, the output circuit
of these products has no protection against
over-current and short-circuits. The simplest method
is to connect a self-recovery fuse in series at the
input end or add a circuit breaker to the circuit.
PIN Connections
Pin
1
2
7
9
10
Vin
GND
+ Vo
-Vo
0V
1 2
7
9 10
- Filtering
In some circuits which are sensitive to noise and
ripple, a filtering capacitor may be added to the
DC/DC output end and input end to reduce the noise
and ripple. However, the capacitance of the output
filter capacitor must proper. If the capacitance is too
big, a startup problem might arise. For every channel
of output, providing the safe and reliable operation is
ensured, the greatest capacitance of its filter
capacitor refer to the EXTERNAL CAPACITOR
TABLE. To get an extreme low ripple, an “LC” filtering
network may be connected to the input and output
ends of the DC/DC converter, which may produce
a more significant filtering effect. It should also be
noted that the inductance and the frequency of the
“LC” filtering network should be staggered with the
DC/DC frequency to avoid mutual interference
(see figure 1).
External Capacitor Table
V
in
5VDC
12VDC
24VDC
--
-
External
capacitor
4.7 uF
2 .2uF
1 uF
-
V
out
5VDC
9VDC
12VDC
15VDC
External
capacitor
4.7uF
2.2uF
1uF
0.47uF
Figure 1
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062
www.v-infinity.com
1-866-372-1258
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