VEFT1-S3.3-S3.3-SMT Datasheet, PDF (1/3 Pages) CUI INC – single output series dc-dc converter

rev.
page 1 of 3
date 10/2009
PART NUMBER: VEFT1-SMT
DESCRIPTION: single output series dc-dc converter
Description
Features
Designed to convert fixed voltages into
an isolated voltage, the VEFT1-SMT sin-
gle series is well suited for providing
board-mount local supplies in a wide
range of applications, including mixed
analog/digital circuits, test & measure-
ment equip., process/machine controls,
datacom/telecom fields, etc...
The semi-regulated output can be fol-
lowed by 3-terminal regulators to pro-
vide output protection, in addition to
output regulation.
·Isolated 1 W output
·Temperature range: -40°C~+85°C
·Unregulated
·High efficiency to 80%
·Single 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
MODEL
VEFT1-S3.3-S3.3-SMT
VEFT1-S3.3-S5-SMT
VEFT1-S5-S3.3-SMT
VEFT1-S5-S5-SMT
VEFT1-S5-S9-SMT
VEFT1-S5-S12-SMT
VEFT1-S5-S15-SMT
VEFT1-S5-S24-SMT
VEFT1-S12-S3.3-SMT
VEFT1-S12-S5-SMT
VEFT1-S12-S9-SMT
VEFT1-S12-S12-SMT
VEFT1-S12-S15-SMT
VEFT1-S12-S24-SMT
VEFT1-S24-S3.3-SMT
VEFT1-S24-S5-SMT
VEFT1-S24-S9-SMT
VEFT1-S24-S12-SMT
VEFT1-S24-S15-SMT
VEFT1-S24-S24-SMT
Input Voltage
Nominal
Range
3.3 Vdc 3.00~3.60 Vdc
3.3 Vdc 3.00~3.60 Vdc
5 Vdc
4.5~5.5 Vdc
5 Vdc
4.5~5.5 Vdc
5 Vdc
4.5~5.5 Vdc
5 Vdc
4.5~5.5 Vdc
5 Vdc
4.5~5.5 Vdc
5 Vdc
4.5~5.5 Vdc
12 Vdc 10.8~13.2 Vdc
12 Vdc 10.8~13.2 Vdc
12 Vdc 10.8~13.2 Vdc
12 Vdc 10.8~13.2 Vdc
12 Vdc 10.8~13.2 Vdc
12 Vdc 10.8~13.2 Vdc
24 Vdc 21.6~26.4 Vdc
24 Vdc 21.6~26.4 Vdc
24 Vdc 21.6~26.4 Vdc
24 Vdc 21.6~26.4 Vdc
24 Vdc 21.6~26.4 Vdc
24Vdc 21.6~26.4 Vdc
Output
Voltage
3.3 Vdc
5 Vdc
3.3 Vdc
5 Vdc
9 Vdc
12 Vdc
15 Vdc
24 Vdc
3.3 Vdc
5 Vdc
9 Vdc
12 Vdc
15 Vdc
24 Vdc
3.3 Vdc
5 Vdc
9 Vdc
12 Vdc
15 Vdc
24 Vdc
Output Current
Package
Max.
Min. Efficiency Style UL60950-1
300 mA
30 mA
72%
SMD
NO
200 mA
20 mA
73%
SMD
NO
300 mA
30 mA
74%
SMD
NO
200 mA
20 mA
70%
SMD
YES
111 mA
12 mA
75%
SMD
YES
83 mA
9 mA
78%
SMD
YES
67 mA
7 mA
80%
SMD
YES
42 mA
5 mA
78%
SMD
NO
300 mA
30 mA
75%
SMD
NO
200 mA
20 mA
72%
SMD
YES
111 mA
12 mA
76%
SMD
YES
83 mA
9 mA
79%
SMD
YES
67 mA
7 mA
81%
SMD
YES
42 mA
5 mA
79%
SMD
NO
300 mA
30 mA
73%
SMD
NO
200 mA
20 mA
79%
SMD
NO
111 mA
12 mA
80%
SMD
NO
83 mA
9 mA
81%
SMD
NO
67 mA
7 mA
79%
SMD
NO
42 mA
5 mA
80%
SMD
NO
OUTPUT SPECIFICATIONS
Item
Test conditions
Output power
Line Regulation
For Vin change of 1%
Load Regulation
10% to 100% full load
Output voltage accuracy
See tolerance envelope graph
Temperature drift
@ 100% load
Output ripple
20 MHz Bandwidth
Switching frequency
Full load, nominal input
Min.
0.1
100
Typ.
10
75
125
Max.
1
1.2
15
0.03
150
160
Units
W
%
%
%/°C
mVp-p
KHz
20050 SW 112^th Ave. Tualatin, Oregon 97062 phone [phone] fax [phone] www.v-infinity.com