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UNISONIC TECHNOLOGIES CO., LTD
78TXX
LINEAR INTEGRATED CIRCUIT
3-TERMINALS 0.5A POSITIVE VOLTAGE REGULATOR
DESCRIPTION
The UTC 78TXX family is monolithic fixed voltage regulator integrated circuit. They are suitable for applications that required supply current up to 0.5 A.
FEATURE
* Output current up to 0.5 A * Fixed output voltage of 5V, 6V, 8V, 9V, 12V, 15V and 18V * Thermal overload shutdown protection * Short circuit current limiting * Output transistor SOA protection
available
ORDERING INFORMATION
Note:
Ordering Number
Lead Free
Halogen Free
78TXXL-TA3-T
78TXXG-TA3-T
78TXXL-TQ2-R
78TXXG-TQ2-R
78TXXL-TQ2-T
78TXXG-TQ2-T
78TXXL-TQ3-R
78TXXG-TQ3-R
78TXXL-TQ3-T
78TXXG-TQ3-T
1. xx: output voltage, refer to Marking Information
2. Pin Code: I: Input G: GND O: Output
Package
TO-220 TO-263 TO-263 TO-263-3 TO-263-3
Pin Assignment 123 I GO I GO I GO I GO I GO
Packing
Tube Tape Reel
Tube Tape Reel
Tube
www.unisonic.com.tw Copyright © 2014 Unisonic Technologies Co., Ltd
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QW-R101-021.F
78TXX
LINEAR INTEGRATED CIRCUIT
MARKING INFORMATION
PACKAGE
TO-220 TO-263 TO-263-3
VOLTAGE CODE
05 : 5V 06 : 6V 08 : 8V 09 : 9V 12 : 12V 15 : 15V 18 : 18V
BLOCK DIAGRAM
MARKING
R13 T10
R17 T8
R14 T11
T5
R9 Z2 T12
T9
T14 R19
R18 R12
T13
R11 R10
R15 Z1
R16
T6
R5 T4
T15
R1 T1
R4 R6
T7 R2 C1
T3 T2
R8 R7
INPUT 1
OUTPUT 3
R3
TYPICAL APPLICATION CIRCUIT
GND 2
VIN
CI 0.33 μF
1 UTC78TXX 3 2
VoUT
CO 0.1 μF
Note: Bypass capacitors are recommended for optimum stability and transient response and should be located as close as possible to the regulators.
UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw
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QW-R101-021.F
78TXX
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified.)
PARAMETER
SYMBOL
RATINGS
UNIT
Input Voltage
VIN 35
V
Output Current
IOUT
0.5
A
Power Dissipation
PD Internally Limited W
Junction Temperature
TJ 0~+125 °C
Storage Temperature
TSTG
-65 ~ +150
°C
Notes:1. Absolute maximum ratings are stress ratings only and functional device operation is not implied.
The device could be damaged beyond Absolute maximum ratings.
2. The maximum steady state usable output current are dependent on input voltage, heat sinking, lead length
of the package and copper pattern of PCB. The data are showed as electrical characteristics table
represents pulse test conditions with junction temperatures specified at the initiation of test.
ELECTRICAL CHARACTERISTICS (TJ=25°C,CI =0.33uF,CO =0.1uF,PD≦7W, unless otherwise specified)
For 78T05 (VIN=10V, IOUT=0.5A) PARAMETER
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage For 78T06 (VIN=11V, IOUT=0.5A)
PARAMETER
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage
SYMBOL
TEST CONDITIONS
VOUT VOUT VOUT
IQ
IOUT=5mA~0.5A VIN =7.5~20V, IOUT=5mA~0.5A IOUT=5mA~0.5A IOUT=5mA~200 mA VIN =7V~25V VIN =7.5~20V, IOUT=0.5A IOUT=0.5A
IQ
VUT =7.5~20V IOUT=5mA~0.5A
eN 10Hz≦f≦100kHz VOUT/T IOUT=5mA
RR IPEAK
VIN =8~18V, f=120Hz
ISC VIN=35V VD
SYMBOL
TEST CONDITIONS
VOUT
IOUT=5mA~0.5A VIN=8.5~21V, IOUT=5mA~0.5A
VOUT
IOUT=5mA~0.5A IOUT=5mA~200mA
VOUT
VIN=8~25V VIN=8.5~21V, IOUT=0.5A
IQ IOUT=0.5A
IQ
VIN =8.5~21V IOUT=5mA~0.5A
eN 10Hz≦f≦100kHz
VOUT/T IOUT=5mA RR VIN =9~19V, f=120Hz
IPEAK ISC
VIN=35V
VD
MIN TYP MAX UNIT
4.8 5 5.2 V
4.75 5.25 V
100 mV
50 mV
100 mV
50 mV
8 mA
1 mA
0.5 mA
40 μV
-0.6 mV/℃
62 80
dB
1.2 A
250 mA
2V
MIN TYP MAX UNIT
5.76 6 6.24 V
5.7 6.3 V
60 mV
30 mV
60 mV
60 mV
8 mA
1 mA
0.5 mA
45 μV
-0.7 mV/℃
59 75
dB
1.2 A
250 mA
2V
UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw
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QW-R101-021.F
78TXX
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
For 78T08 (VIN=14V, IOUT=0.5A) PARAMETER
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage For 78T09 (VIN=15V, IOUT=0.5A)
PARAMETER
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage For 78T12 (VIN=19V, IOUT=0.5A)
PARAMETER
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage
SYMBOL
TEST CONDITIONS
VOUT
IOUT=5mA~0.5A VIN=10.5~23V, IOUT=5mA~0.5A
VOUT
IOUT=5mA~0.5A IOUT=5mA~200mA
V.