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VEFT1-SMT Dual Output Series Dc-Dc Converter
Rev. 11-2005
Description
Features
Designed to convert fixed volt-
ages into an isolated voltage, the
VEFT1-SMT dual series is well
suited for providing board-mount
local supplies in a wide range of
applications, including mixed ana-
log/digital circuits, test & meas-
urement equip., process/machine
controls, datacom/telecom fields,
etc...
·Isolated 1 W output
·Temperature range: -40°C~+85°C
available in -55°C~+125°C
·Unregulated
·High efficiency to 80%
·Dual voltage output
·Small footprint
·SMD package style
·Industry standard pinout
·UL94-V0 package
·No heatsink required
·3K Vdc isolation
·Power density 0.85 W/cm³
·No external component required
·Low cost
The semi-regulated output can be
followed by 3-terminal regulators
to provide output protection, in
addition to output regulation.
Model
Input Voltage
Output
Voltage
±5 Vdc
Output Current
Package
Style
SMD
SMD
SMD
SMD
SMD
SMD
SMD
SMD
SMD
SMD
SMD
SMD
SMD
SMD
SMD
SMD
Number
Nominal
5 Vdc
Range
Max.
±100 mA
±56 mA
±42 mA
±33 mA
±100 mA
±56 mA
±42 mA
±33 mA
±100 mA
±56 mA
±42 mA
±33 mA
±100 mA
±56 mA
±42 mA
±33 mA
Min.
±10 mA
±6 mA
±5 mA
±4 mA
±10 mA
±6 mA
±5 mA
±4 mA
±10 mA
±6 mA
±5 mA
±4 mA
±10 mA
±6 mA
±5 mA
±4 mA
Efficiency
72%
75%
78%
78%
74%
76%
79%
79%
74%
75%
79%
79%
79%
80%
80%
80%
VEFT1-S5-D5-SMT
VEFT1-S5-D9-SMT
VEFT1-S5-D12-SMT
VEFT1-S5-D15-SMT
VEFT1-S12-D5-SMT
VEFT1-S12-D9-SMT
VEFT1-S12-D12-SMT
VEFT1-S12-D15-SMT
VEFT1-S15-D5-SMT
VEFT1-S15-D9-SMT
VEFT1-S15-D12-SMT
VEFT1-S15-D15-SMT
VEFT1-S24-D5-SMT
VEFT1-S24-D9-SMT
VEFT1-S24-D12-SMT
VEFT1-S24-D15-SMT
4.5~5.5 Vdc
5 Vdc
4.5~5.5 Vdc
±9 Vdc
5 Vdc
4.5~5.5 Vdc
±12 Vdc
±15 Vdc
±5 Vdc
5 Vdc
4.5~5.5 Vdc
12 Vdc
12 Vdc
12 Vdc
12 Vdc
15 Vdc
15 Vdc
15 Vdc
15 Vdc
24 Vdc
24 Vdc
24 Vdc
24 Vdc
10.8~13.2 Vdc
10.8~13.2 Vdc
10.8~13.2 Vdc
10.8~13.2 Vdc
14.25~15.75 Vdc
14.25~15.75 Vdc
14.25~15.75 Vdc
14.25~15.75 Vdc
21.6~26.4 Vdc
21.6~26.4 Vdc
21.6~26.4 Vdc
21.6~26.4 Vdc
±9 Vdc
±12 Vdc
±15 Vdc
±5 Vdc
±9 Vdc
±12 Vdc
±15 Vdc
±5 Vdc
±9 Vdc
±12 Vdc
±15 Vdc
Notes:
1. All specifications measured at TA=25°C, humidity <75%, nominal input voltage and rated output load unless
otherwise specified.
2. For extended temperature version, add -M to the model #, e.g. VEFT1-S5-D5-SMT-M.
Output Specifications
Item
Test conditions
Min.
Typ.
Max.
Units
Output power
0.1
1
W
Line Regulation
Load Regulation
Output voltage accuracy
Temperature drift
Output ripple
For Vin change of 1%
10% to 100% full load
1.2%
10%
15%
See tolerance envelope graph
@ 100% load
0.03
75
%/°C
mVp-p
Hz
20 MHz Bandwidth
50
Switching frequency
Full load, nominal input
100K
150K
200K
V-Infinity, LLC, 9615 SW Allen Blvd Suite 103, Beaverton, OR 97005
www.v-infinity.com
1-866-372-1258
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