Datasheet

cui.com
CUI Inc │ SERIES: V78-1500 │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR date 03/21/2014 │ page 5 of 6
EMC RECOMMENDED CIRCUIT
TEST CONFIGURATION
Vin
GND
2.2uF
1mH
1uF
Vin Vo
GND
1mH
330uF
Vout
GND
Efficiency and Output Voltage Ripple Test
Scope
Ceramic
3
Vin
GND
+Vout
C2
C1
25.4m
m
1
2.54 mm
DC/DC
Converter
2
25.4mm
12.7mm
1F
10 F
Tan t a lu m
Copper strip
Copper strip
Load
Start-up and Load Transient Response Test
3
Vin
+Vout
C2
C1
50.8 mm
1
2
.
54
mm
DC/DC
Converter
2
Scope
Copper strip
Load
GND
stripCopper
EFFICIENCY AND RIPPLE CURVES
V7802-1500
V7803-1500
V7805-1500
V7806-1500
Efficiency Ripple
Eff iciency VS. Input voltage






           
Input voltage(V)
E
ffi
c
i
enc
y
(
%
)
V7802-1500
V7803-1500
V7805-1500
V7806-1500
V7802-1500
V7803-1500
V7805-1500
V7806-1500
Ripple VS. Load(Vin=nominal)
2
7
12
17
22
27
32
37
150 300 450 600 750 900 1050 1200 1350 1500
Load(mA)
Ri
pp
le
(
mV
)
Efficiency VS.Load(Vin=nominal)
50
60
70
80
90
100
150 300 450 600 750 900 1050 1200 1350 1500
Load(mA)
E
f
ficien
c
y(%)
Ripple VS.Input voltage(full load)
0
5
10
15
20
25
30
35
40
45
4.75 5 6 6.5 7.2 8 9 10 12 15 18 20
Input voltage(V)
Ripple(mV)
V7802-1500
V7803-1500
V7805-1500
V7806-1500
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