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UNISONIC TECHNOLOGIES CO., LTD 78LXX
3-TERMINAL 0.1A POSITIVE VOLTAGE REGULATOR
SOP-8
LINEAR INTEGRATED CIRCUIT
DESCRIPTION
The UTC 78LXX family is monolithic fixed voltage regulator integrated circuit. They are suitable for applications that required supply current up to 100mA.
1
TO-92
1
FEATURES
*Output current up to 100mA *Fixed output voltage of 5V, 6V, 8V, 9V, 12V, 15V, 18V and 24V available *Thermal overload shutdown protection *Short circuit current limiting
SOT-89
* Pb-free plating product number: 78LXXL
ORDERING INFORMATION
Order Number Pin Assignment Normal Lead Free Plating 12345678 OG I - - - - 78Lxx-AB3-B-R 78LxxL-AB3-B-R OGGNNGG I 78Lxx-S08-0-R 78LxxL-S08-0-R OGGNNGG I 78Lxx-S08-0-T 78LxxL-S08-0-T OG I - - - - 78Lxx-T92-B-B 78LxxL-T92-B-B OG I - - - - 78Lxx-T92-B-K 78LxxL-T92-B-K OG I - - - - 78Lxx-T92-B-R 78LXXL-T92-B-R Note: 1. xx: Output Voltage, refer to Marking Information. 2.O: Output G: GND I: Input N: No Connection
7 8 L xxL - AB3 - B-R (1)Packing Type (2)Pin Assignment (3)Package Type (4)Lead Plating (5)Output Voltage Code
Package SOT-89 SOP-8 SOP-8 TO-92 TO-92 TO-92
Packing Tape Reel Tape Reel Tube Tape Box Bulk Tape Reel
(1) B: Tape Box, K: Bulk, R: Tape Reel, T: Tube (2) refer to Pin Assignment (3) AB3: SOT-89, S08: SOP-8, T92: TO-92 (4) L: Lead Free Plating, Blank: Pb/Sn (5) xx: refer to Marking Information
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Copyright (c) 2005 Unisonic Technologies Co., Ltd
78LXX
MARKING INFORMATION
PACKAGE VOLTAGE CODE
LINEAR INTEGRATED CIRCUIT
MARKING
UTC
SOP-8
VOLTAGE CODE DATE CODE
78L
LEAD PLATING
SOT-89
05:5.0V 06:6.0V 08:8.0V 09:9.0V 12:12V 15:15V 18:18V 24:24V
DATE CODE VOLTAGE CODE
78L
LEAD PLATING
1
2
3
UTC
TO-92
VOLTAGE CODE
78L
LEAD PLATING DATE CODE
1
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78LXX
ABSOLUTE MAXIMUM RATINGS
PARAMETER VOUT=5~9V VOUT=12~24V
LINEAR INTEGRATED CIRCUIT
RATINGS UNIT 30 Input voltage V VIN 35 Output Current IOUT 100 mA SOP-8 300 Power Dissipation PD mW TO-92 625 SOT-89 350 Junction Temperature TJ +125 C Operating Temperature TOPR -20~+85 C Storage Temperature TSTG -40~+150 C Note 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2. The device is guaranteed to meet performance specification within 0~+70 operating temperature range and assured by design from -20~+85
SYMBOL
ELECTRICAL CHARACTERISTICS
For UTC78L05 (VIN=10V, IOUT=40mA, 0C UNISONIC TECHNOLOGIES CO., LTD
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78LXX
ELECTRICAL CHARACTERISTICS (Cont.)
LINEAR INTEGRATED CIRCUIT
For UTC78L08 (VIN=14V, IOUT=40mA, 0CUNISONIC TECHNOLOGIES CO., LTD
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78LXX
ELECTRICAL CHARACTERISTICS (Cont.)
LINEAR INTEGRATED CIRCUIT
For UTC78L15 (VIN=23V, IOUT=40mA, 0C UNISONIC TECHNOLOGIES CO., LTD
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78LXX
APPLICATION CIRCUIT
VIN
LINEAR INTEGRATED CIRCUIT
3
UTC78LXX 2
1
VoUT
C1 0.33F
C0 0.1F
Note 1.To specify an output voltage, substitute voltage value for "XX". 2.Bypass capacitors are recommended for optimum stability and transient response and should be located as close as possible to the regulators.
TEST CIRCUIT
INPUT
3
R13 T10 R17 T8 R9 T9 Z2 T12 R19 R18 R11 T14 R12 R10
R14
T11
T13 T5 T6
OUTPUT
1
R8 R5
R15 Z1 T15
T4
R4 R6
T7 T3 T1 T2
R16
R1
R2
C1
R7
R3
GND
2
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78LXX
TYPICAL CHARACTERISTICS
Fig.1 Ambient temperature vs. Power dissipation
700
LINEAR INTEGRATED CIRCUIT
Fig.2 UTC78L05 Output Voltage vs.Ambient temperature
Power Dissiaption(mW)
600
TO-92 Output Volatge(V)
75 100
5.2
500
5.1
400
SOT-89
5.0
300
4.9
SOP-8
4.8 25 50 -50 0 50 100
Ambient Temperature()
Ambient Temperature()
Fig.3 UTC78L12 Output Voltage vs. Ambient temperature
25
Fig.4 Output Characteristics (Ip=0mA,TJ=25)
12.1
20
UTC78L24
Output Volatge(V)
12.0
Output Voltage(V)
15
11.9
10
UTC78L12
11.8
5
UTC78L05
11.7 -50 0 50 100 0 0 10 20 30 40
Ambient Temperature()
Fig.5 UTC78L05 Dropout Characteristics (TJ=25)
500
Input Voltage(V)
Fig.6 Short Circuit output current (TJ=25)
=0 m 40 A T= m 10 A 0m A
5
Short circuit Current(mA)
7. 0
400
Output Voltage(V)
Io
UT
Io U
T=
300
4. 5
Io U
200
100
4. 1 6.0 6. 5 0 10 20 30 40
Input Voltage(V)
input-outputVoltage difference (V)
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TYPICAL CHARACTERISTICS(Cont.)
Fig.7 UTC78L12/24 quiescent current vs output current (TJ=25)
LINEAR INTEGRATED CIRCUIT
Fig.8 UTC78L05 Quiescent Current vs. Input Voltage (IOUT=0mA,TJ=25)
2.7
Quiescent Current (mA)
2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9
Quiescent Current (mA)
80 100
4
UTC78L24 UTC78L12
3
2
1
0 0 20 40 60 0 10 20 30 40
Output Current (mA)
Fig.9 Peak Output Current vs Dropout Voltage Difference
2.5
Input Voltage(V)
Fig.10 Dropout Voltage
400
Input Output Differentional (V)
Peak Output Current (mA)
2.0
IOUT =70mA IOUT=40mA
300
1.5 IOUT =1.0mA 1.0
200
(TJ=0) (TJ=25)
100
0.5 DROPOUT CONDITIONS VOUT=2% of VOUT 0 25 50 75 100 125
(TJ=150)
0 10 20 30 40
Input-output voltage difference (V)
Junction Temperature ()
UTC assumes no responsibility for equipm ent failures that result from using products at values that exceed, even mom entarily, rated values (such as m aximum ratings, operating condition ranges, or other param eters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or system s where m alfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The inform ation presented in this docum ent does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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