V7803-500-SMT(2009) データシートの表示（PDF） - CUI INC
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V7803-500-SMT Datasheet PDF : 5 Pages
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PART NUMBER: V78XX-500-SMT
rev.
page 4 of 5
date 04/2009
DESCRIPTION: DC switching regulator, non-isolated
TEST CIRCUIT
1) Efficiency and Output Voltage Ripple Test
25.4mm
25.4mm
12.7mm
Vin
C1
GND
1
DC/DC
Converter
5
79
6
C5
470pF
Ceramic
C2 C3
+ Vo u t
Copper strip
1 F 10 F
Cer amic Ta ntalum Scope
Copper strip
2) Start-up and Load Transient Response Test
50.8 mm
Vin
C1
GND
1
DC/DC
Converter
5
Copper strip
79
6
C2 C3
C5
470pF
Ceramic
Copper strip
+ Vo u t
Scope
EFFICIENCY AND RIPPLE
Efficiency (%)
100
Ripple (m V)
45
90
40
80
35
70
30
V7803-500-SMT
60
V7805-500-SMT 25
50
V7812-500-SMT
20
40
V7815-500-SMT
15
30
20
10
V7803-500-SMT
V7805-500-SMT
V7812-500-SMT
V7815-500-SMT
10
5
0
20 50 80 120 160 200 240 280 320 360 400 440 480 500 550 Load (m A)
0
20 50 80 120 160 200 240 280 320 360 400 440 480 500 550 Load (m A)
Efficiency VS Output Load (Vin=Norm)
Output Voltage Ripple VS Output Load (Vin=Norm)
Efficiency (%)
100
95
90
85
80
75
70
65
60
55
50
45
40
4.5 6
V7803-500-SMT
V7805-500-SMT
V7812-500-SMT
V7815-500-SMT
8 10 12 14 16 17 20 22 24 26 28 Vin(V)
Efficiency VS Input Voltage (Full Load)
Ripple (mV)
45
40
35
30
V7803-500-SMT
V7805-500-SMT
25
V7812-500-SMT
20
V7815-500-SMT
15
10
5
0
4.5 6 8 10 12 14 16 17 20 22 24 26 28 Vin (V)
Output Voltage Ripple VS Input Voltage (Full Load)
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
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