available in straight and right angle SIP packages
low ripple and noise
short circuit protection, thermal shutdown
wide temperature (-40~85°C)
RoHS
MODEL
V7803-1000
V7805-1000
V7806-1000
V7809-1000
V7812-1000
V7815-1000
Notes:
input
voltage
typ
(Vdc)
range
(Vdc)
output
voltage
1
(Vdc)
output
current
max
(mA)
ripple
and noise
2
max
(mVp-p)
efficiency
Vin min
(%)
Vin max
(%)
24
24
24
24
24
24
4.75~28
6.5~32
9~32
12~32
16~32
20~32
3.3
5
6.5
9
12
15
1,000
1,000
1,000
1,000
1,000
1,000
35
35
35
35
35
35
90
93
94
95
96
97
83
88
90
92
94
94
1. Not recommended for use in a negative output mode.
2. Ripple and noise are measured at 20 MHz BW, see Test Configuration section.
PART NUMBER KEY
V78
XX
- 1000
X
Base Number
Output Voltage
Output Current
"blank" = straight pins
R = 90° pins
cui.com
For more information, please visit the
product page.
CUI Inc
│
SERIES:
V78-1000
│
DESCRIPTION:
NON-ISOLATED SWITCHING REGULATOR
date
08/27/2014
│
page
2 of 7
INPUT
parameter
conditions/description
3.3 Vdc model
5 Vdc model
6.5 Vdc model
9 Vdc model
12 Vdc model
15 Vdc model
min
4.75
6.5
9.0
12
16
20
typ
24
24
24
24
24
24
max
28
32
32
32
32
32
units
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
operating input voltage
OUTPUT
parameter
line regulation
load regulation
voltage accuracy
switching frequency
temperature coefficient
load capacitance
conditions/description
Vin = min ~ max, at full load
measured from 10% load to full load
100% load
100% load, input voltage range
280
min
typ
±0.2
±0.4
±2
330
±0.02
1,000
max
±0.4
±0.6
±3
450
units
%
%
%
kHz
%/°C
μF
PROTECTIONS
parameter
short circuit protection
thermal shutdown
conditions/description
continuous, automatic recovery
150
°C
min
typ
max
units
SAFETY AND COMPLIANCE
parameter
MTBF
RoHS compliant
conditions/description
as per MIL-HDBK-217F, 25°C
2011/65/EU
min
2,000,000
typ
max
units
hours
ENVIRONMENTAL
parameter
operating temperature
storage temperature
case temperature
storage humidity
lead temperature
non-condensing
1.5 mm from case for 10 seconds
conditions/description
see derating curve
min
-40
-55
typ
max
85
125
100
95
300
units
°C
°C
°C
%
°C
cui.com
For more information, please visit the
product page.
CUI Inc
│
SERIES:
V78-1000
│
DESCRIPTION:
NON-ISOLATED SWITCHING REGULATOR
date
08/27/2014
│
page
3 of 7
DERATING CURVES
1. output power vs. ambient temperature
100
80
60
40
20
Load (%)
-40
-20
0
20
40
60 71
85
100
120
Ambient Temperature (°C)
MECHANICAL
parameter
dimensions
case material
weight
conditions/description
11.50 x 9.00 x 17.50 (0.689 x 0.354 x 0.453 inch)
plastic (UL94-V0)
3.7
g
min
typ
max
units
mm
MECHANICAL DRAWING
units: mm [inches]
tolerance: ±0.25 [0.010]
pin section tolerance: ±0.10 [0.004]
V78XX-1000
V78XX-1000R
11.50[0.453]
9.00 [0.354]
11.50[0.453]
9.00 [0.354]
17.50 [0.689]
0.50 [0.020]
17.50 [0.689]
0.50 [0.020]
4.10[0.161]
4.10 [0.161]
5.08 [0.200]
5.08 [0.200]
(Bottom View)
2.15 [0.085]
2.54 [0.100]
1 2
3
1.00 [0.039]
1.50
[0.059]
5.08 [0.200]
5.08 [0.200]
1.35 [0.053]
2.15
[0.085]
(Bottom View)
2.15
[0.085]
1
2
3
0.30
[0.012]
0.50 [0.020]
1
2
3
2.54 [0.100]
1.00 [0.039]
PIN CONNECTIONS
PIN
1
2
3
FUNCTION
+Vin
GND
+Vo
cui.com
For more information, please visit the
product page.
CUI Inc
│
SERIES:
V78-1000
│
DESCRIPTION:
NON-ISOLATED SWITCHING REGULATOR
date
08/27/2014
│
page
4 of 7
EXTERNAL CAPACITOR TABLE
Part Number
V7803-1000(R)
V7805-1000(R)
V7806-1000(R)
V7809-1000(R)
V7812-1000(R)
V7815-1000(R)
C1
2
(Ceramic capacitor)
10μF/50V
10μF/50V
10μF/50V
10μF/50V
10μF/50V
10μF/50V
C2 (Ceramic capacitor)
22μF/6.3V
22μF/16V
10μF/16V
10μF/16V
10μF/25V
10μF/25V
TYPICAL APPLICATION CIRCUIT
Vin
1
V78XX-1000(R)
2
3
+Vout
C1
C2
GND
Notes:
1. C1 and C2 are required and should be fitted close to the converter pins.
2. If the input voltage is greater than 26 Vdc (3.3 Vdc output model) or greater than 28 Vdc (all other models), it is required to have C1 be ≥ 22 µF electrolytic capacitor to
protect the part from voltage spikes.
OUTPUT RIPPLE REDUCTION
Vin
1
C1
DC/DC
3
Converter
2
+Vout
L
C2
22 F
GND
To reduce output ripple, it is recommended to add a LC filter in output port.
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