V7809-500 CUI Inc, V7809-500 Datasheet - Page 3

• Manufacturer Part Number: V7809-500
• Description: CONVERTER DC/DC REG 9V 500MA
• Manufacturer: CUI Inc
• Series: V-Infinity V78XX-500r
• Type: Linear Regulator Drop-Inr

Specifications of V7809-500

• Output: 9V
• Number Of Outputs: 1
• Power (watts): 4.5W
• Mounting Type: Through Hole
• Voltage - Input: 11 ~ 32V
• Package / Case: 3-SIP Module
• 1st Output: 9 VDC @ 500mA
• Size / Dimension: 0.45" L x 0.30" W x 0.40" H (11.4mm x 7.6mm x 10.2mm)
• Power (watts) - Rated: 4.5W
• Operating Temperature: -40°C ~ 85°C
• Efficiency: 95%
• Approvals: UL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 102-1711

PART NUMBER: V78XX-500 series
TYPICAL APPLICATION CIRCUIT
TEST CIRCUIT
FOR EFFICIENCY & RIPPLE GRAPHS (PAGE4)
DC Power
Source
20050 SW 112
+
-
INPUT CAPACITOR (C1):
A low ESR capacitor is recommended to keep the noise at the converter to a minimum.
Ceramic capacitors are preferred but tantalum or low ESR electrolytic capacitors may
also suffice. Place C1 as close as possible to pins 1 & 2.
OUTPUT CAPACITOR (C2):
A 100μF/25V electrolytic capacitor is recommended.
1. Cin = 10μF / 50V for 500mA and 22μF / 50V for 1A, Cout = 100μF / 16V.
2. C01 = 10μF / 50V Electrolytic, C02 = 0.1μF / 50V Ceramic.
3. All points labeled A refer to one junction.
4. All points labeled B refer to one junction.
5. Use a short ground loop for probing. Do not use a wired ground clip.
th
Current
Voltage
Ave. Tualatin, Oregon 97062
Meter
Meter
GND
Vin
Cin
C1
10 F/50V
μ
GND
+Vin
1
Converter
DC/DC
V78XX-500
phone
phone [phone] fax
+Vout
0V
2
DESCRIPTION: DC switching regulator, non-isolated
Cout
30cm, 18AWG
3
Twisted
A
B
C01
fax [phone]
100 F/25V
C2
+
A
B
Current
Voltage
Meter
Meter
μ
C02
Vout
B
+
-
A
B
A
Electronic
Oscilloscope
rev.
page
date
Load
20MHz
06/2008
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