date
page
06/2010
3 of 5
a division of CUI INC
SERIES: V78XX-2000
DESCRIPTION: DC SWITCHING REGULATOR,
NON-ISOLATED
RECOMMENDED FOOTPRINT
V78XX-2000
V78XX-2000R
1.35 [0.053]
5.08 [0.200]
1.00 [0.039]
FOOTPRINT DETAILS
Negative
+Vin
-Vout
Pin
1
2
Positive
+Vin
GND
1
2
3
1
2
3
3
GND
+Vout
2.54 [0.100]
1.00 [0.039]
DERATING CURVE
EXTERNAL CAPACITOR TABLE
C1
C2
Part Number
(Ceramic capacitor) (Ceramic capacitor)
V7802-2000
V7803-2000
V7805-2000
V7806-2000
10µF/25V
10µF/25V
10µF/25V
10µF/25V
22µF/6.3V
22µF/6.3V
22µF/16V
22µF/16V
Operating Temp.(
(Figure 1)
C )
TYPICAL APPLICATION CIRCUIT
Positive and Negative Outputs
Positive Output
3
1
1
3
+Vin
GND
+Vout
V78XX-2000
2
Vin
V78XX-2000
2
+Vout
C3
C1
C4
C2
C1
C2
GND
GND
GND
GND
1
3
V78XX-2000
2
Negative Output
GND
+Vin
-Vout
Note:
3
1. C1 and C2 are required and should be fitted close to the converter
pins.
1
V78XX-2000
2
2. The capacitance of C1and C2 sees external capacitor table, it can
be increased properly if required, and tantalum or low ESR
electrolytic capacitors may also suffice.
C1
C2
3. No parallel connection or plug and play.
-Vout
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 www.v-infinity.com
CUI [ CUI INC ]
