UNISONIC TECHNOLOGIES CO.,
78DXX LINEAR INTEGRATED CIRCUIT
www.unisonic.com.tw 1
Copyright © 2005 Unisonic Technologies Co., QW-R101-005,F
3-TERMINALS 0.5A POSITIVE
VOLTAGE REGULATOR
null DESCRIPTION
The UTC 78DXX family is monolithic fixed voltage regulator
integrated circuit. They are suitable for applications that required
supply current up to 0.5 A.

null FEATURE
*Output current up to 0.5 A
*Fixed output voltage of 3.3V,4.7V, 5V, 6V, 8V, 9V, 12V, 15V,18V
and 24V available
*Thermal overload shutdown protection
*Short circuit current limiting
*Output transistor SOA protection
TO-252
1
TO-251
1
*Pb-free plating product number:78DXXL

null PIN CONFIGURATION

PIN NO. PIN NAME
1 Input
2 GND
3 Output
null ORDERING INFORMATION
Order Number
Normal Lead free
Package Packing
78Dxx-TM3-T 78DxxL-TM3-T TO-251 Tube
78Dxx-TN3-R 78DxxL-TN3-R TO-252 Tape Reel
78Dxx-TN3-T 78DxxL-TN3-T TO-252 Tube
Note: xx: Output Voltage, refer to below table.
null MARKING INFORMATION
PACKAGE VOLTAGE CODE MARKING
TO-251
TO-252
33 : 3.3V
47 : 4.7V
05 : 5V
06 : 6V
08 : 8V
09 : 9V
12 : 12V
15 : 15V
18 : 18V
24 : 24V

123
UTC
78DXXL
VOLTAGE CODE
DATE CODE
Space:Pb/Sn
L:Pb-free