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P7805-Q12-S1R5-S Datasheet(PDF) 4 Page - CUI INC

Part # P7805-Q12-S1R5-S
Description  NON-ISOLATED SWITCHING REGULATOR
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Manufacturer  CUI [CUI INC]
Direct Link  http://www.cui.com
Logo CUI - CUI INC

P7805-Q12-S1R5-S Datasheet(HTML) 4 Page - CUI INC

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CUI Inc
│ SERIES: P7805-S │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR
date 03/20/2013
│ page 4 of 6
FU
EUT
1
2
3
LDM2
C0
TVS
LDM1
MOV
SE
C3
Vin
GND
+
C2
Vout
GND
C1
(a)
(b)
DERATING CURVES
100
80
60
40
20
Operating Temperature (°C)
-40-20
0204060
85
100
Safe operating area
71
Recommended external circuit
components
FUSE
choose according to
practical input current
MOV
10D560
LDM1
82μH
TVS
SMCJ36A
C0
120μF/50V
C3
4.7μF/50V
Temperature Derating Curve
Figure 1
TEST CONFIGURATION
Note: To reduce ripple, it is recommended to add a LC filter in output port. (L: Recommended parameter 10μH ~ 47 μH)
EMC RECCOMENDED CIRCUIT
Effeciency and Output Voltage Ripple Test
Start-up and Load Transient Response Test
Scope
Ceramic
3(2)
+Vin
GND
Vout
C2
C1
25.4mm
1
DC/DC
Converter
2(3)
25.4mm
12.7mm
1F 10 F
Tantalum
Copper strip
Copper strip
3(2)
+Vin
GND
Vout
C2
C1
50.8 mm
1
DC/DC
Converter
2
Scope
Copper strip
Copper strip
(3)
OUTPUT RIPPLE REDUCTION
3(2)
+Vin
GND
Vout
1
DC/DC
Converter
C1
22 F
2(3)
C2
L


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