UTC LM78XX LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD. 1
QW-R101-006,C
3-TERMINAL 1A POSITIVE
VOLTAGE REGULATOR
DESCRIPTION
The UTC 78XX family is monolithic fixed voltage
regulator integrated circuit. They are suitable for
applications that required supply current up to 1 A.
FEATURES
*Output current up to 1.5 A
*Fixed output voltage of 5V, 6V, 8V, 9V, 10V, 12V,
15V ,18V and 24V available
*Thermal overload shutdown protection
*Short circuit current limiting
*Output transistor SOA protection
TO-220
1
TO-263
1
TO-252
1
1: Input 2: GND 3: Output
TEST CIRCUIT
3
1
2
GND
OUTPUT
INPUT
R13 R17 R9 Z2 T12
T14
R19
R18
R12
R11 R10
R8
T8 T9
T13
T10
R14
T11 T5
T6
R5
T4
Z1
R15
T15
R16 R1 R2
R4
C1
R6
T7
T3
T1 T2
R3
R7
UTC LM78XX LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD. 2
QW-R101-006,C
ABSOLUTE MAXIMUM RATINGS
( Operating temperature range applies unless otherwise specified )
PARAMETER SYMBOL RATING UNIT
Input voltage(for Vo=5~18V)
(for Vo=24V)
VI
35
40
V
V
Output Current I o 1 A
Power Dissipation PD Internally Limited W
Operating Junction Temperature Range TOPR -20 +150 °C
Storage Temperature Range TSTG -55 +150
°C
UTC LM7805 ELECTRICAL CHARACTERISTICS
( VI=10V, Io=0.5A, Tj= 0°C - 125°C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25°C, IO=5mA - 1.0A 4.80 5.0 5.20 V
Output Voltage Vo VI =7.5V to 20V,
IO=5mA - 1.0A,PD<15W
4.75 5.25 V
Load Regulation Vo Tj=25°C,IO=5mA - 1.5A 50 mV
Tj=25°C,IO=0.25A - 0.75A 25 mV
Line regulation Vo VI =7V to 25V,Tj=25°C 50 mV
VI =7.5V to 20V,Tj=25°C,Io=1A 50 mV
Quiescent Current Iq Tj=25°C, IO=<1A 8.0 mA
Quiescent Current Change Iq VI =7.5V to 20V 1.0 mA
Iq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 40 µV
Temperature coefficient of Vo Vo/T Io=5mA -0.6
mV/°C
Ripple Rejection RR VI =8V - 18V,f=120Hz,Tj=25°C62 80 dB
Peak Output Current IPK Tj=25°C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25°C 250 mA
Dropout Voltage Vd Tj=25°C 2.0 V
UTC LM7806 ELECTRICAL CHARACTERISTICS
( VI=11V, Io=0.5A, Tj= 0°C - 125°C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25°C, IO=5mA - 1.0A 5.76 6.0 6.24 V
Output Voltage Vo VI =8.5V to 21V,
IO=5mA - 1.0A, PD<15W
5.70 6.30 V
Load Regulation Vo Tj=25°C,IO=5mA - 1.5A 60 mV
Tj=25°C,IO=0.25A - 0.75A 30 mV
Line regulation Vo VI =8V to 25V,Tj=25°C 60 mV
VI =8.5V to 21V,Tj=25°C,Io=1A 60 mV
Quiescent Current Iq Tj=25°C, IO=<1A 8.0 mA
Quiescent Current Change Iq VI =8.5V to 21V 1.0 mA
Iq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 45 µV
Temperature coefficient of Vo Vo/T Io=5mA -0.7
mV/°C
Ripple Rejection RR VI =9V - 19V,f=120Hz,Tj=25°C59 75 dB
UTC LM78XX LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD. 3
QW-R101-006,C
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Peak Output Current IPK Tj=25°C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25°C 250 mA
Dropout Voltage Vd Tj=25°C 2.0 V
UTC LM7808 ELECTRICAL CHARACTERISTICS
( VI=14V, Io=0.5A, Tj= 0°C - 125°C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25°C, IO=5mA - 1.0A 7.68 8.0 8.32 V
Output Voltage Vo VI =10.5V to 23V,
IO=5mA - 1.0A, PD<15W
7.60 8.40 V
Load Regulation Vo Tj=25°C,IO=5mA - 1.5A 80 mV
Tj=25°C,IO=0.25A - 0.75A 40 mV
Line regulation Vo VI =10.5V to 25V,Tj=25°C 80 mV
VI =10.5V to 23V,Tj=25°C,Io=1A 80 mV
Quiescent Current Iq Tj=25°C, IO=<1A 8.0 mA
Quiescent Current Change Iq VI =10.5V to 23V 1.0 mA
Iq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 58 µV
Temperature coefficient of Vo Vo/T Io=5mA -0.9
mV/°C
Ripple Rejection RR VI =11.5V to 21.5V,
f=120Hz,Tj=25°C
56 72 dB
Peak Output Current IPK Tj=25°C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25°C 250 mA
Dropout Voltage Vd Tj=25°C 2.0 V
UTC LM7809 ELECTRICAL CHARACTERISTICS
( VI=15V, Io=0.5A, Tj= 0°C - 125°C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25°C, IO=5mA - 1.0A 8.64 9.0 9.36 V
Output Voltage Vo VI =11.5V to 24V,
IO=5mA - 1.0A,PD<15W
8.55 9.45 V
Load Regulation Vo Tj=25°C,IO=5mA - 1.5A 90 mV
Tj=25°C,IO=0.25A - 0.75A 45 mV
Line regulation Vo VI =11.5V to 25 V,
Tj=25°C, PD<15W
90 mV
VI =11.5V to 24V,Tj=25°C,
Io<=1A
90 mV
Quiescent Current Iq Tj=25°C, IO=<1A 8.0 mA
Quiescent Current Change Iq VI =11.5V to 24V 1.0 mA
Iq IO=5mA – 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 58 µV
Temperature coefficient of Vo Vo/T Io=5mA -1.1
mV/°C
Ripple Rejection RR VI =12.5V to 22.5V,
f=120Hz,Tj=25°C
56 72 dB
Peak Output Current IPK Tj=25°C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25°C 250 mA
Dropout Voltage Vd Tj=25°C 2.0 V
UTC LM78XX LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD. 4
QW-R101-006,C
UTC LM7810 ELECTRICAL CHARACTERISTICS
( VI=16V, Io=0.5A, Tj= 0°C - 125°C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25°C, IO=5mA - 1.0A 9.60 10.0 10.40 V
Output Voltage Vo VI =12.5V to 25V,
IO=5mA - 1.0A,PD<=15W
9.50 10.50 V
Load Regulation Vo Tj=25°C,IO=5mA - 1.5A 100 mV
Tj=25°C,IO=0.25A - 0.75A 50 mV
Line regulation Vo VI =13V to 25V,Tj=25°C 100 mV
VI =13V to 25V,
Tj=25°C,Io<=1A
100 mV
Quiescent Current Iq Tj=25°C, IO=<1A 8.0 mA
Quiescent Current Change Iq VI =12.6V to 25V 1.0 mA
Iq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 58 µV
Temperature coefficient of Vo Vo/T Io=5mA -1.1
mV/°C
Ripple Rejection RR VI =13V - 23V,f=120Hz,Tj=25°C56 72 dB
Peak Output Current IPK Tj=25°C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25°C 250 mA
Dropout Voltage Vd Tj=25°C 2.0 V
UTC LM7812 ELECTRICAL CHARACTERISTICS
( VI=19V, Io=0.5A, Tj= 0°C - 125°C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25°C, IO=5mA - 1.0A 11.52 12.0 12.48 V
Output Voltage Vo VI =14.5V to 27V,
IO=5mA - 1.0A,PD<15W
11.40 12.60 V
Load Regulation Vo Tj=25°C,IO=5mA - 1.5A 120 mV
Tj=25°C,IO=0.25A - 0.75A 60 mV
Line regulation Vo VI =14.5V to 30V,Tj=25°C 120 mV
VI =14.6V to 27V,Tj=25°C,
Io=1A
120 mV
Quiescent Current Iq Tj=25°C, IO=<1A 8.0 mA
Quiescent Current Change Iq VI =14.5V to 30V 1.0 mA
Iq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 75 µV
Temperature coefficient of Vo Vo/T Io=5mA -1.5
mV/°C
Ripple Rejection RR VI =15V - 25V,f=120Hz,Tj=25°C55 72 dB
Peak Output Current IPK Tj=25°C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25°C 250 mA
Dropout Voltage Vd Tj=25°C 2.0 V
UTC LM78XX LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD. 5
QW-R101-006,C
UTC LM7815 ELECTRICAL CHARACTERISTICS
( VI=23V, Io=0.5A, Tj= 0°C - 125°C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25°C, IO=5mA - 1.0A 14.40 15.0 15.60 V
Output Voltage Vo VI =17.5V to 30V,
IO=5mA - 1.0A,PD<15W
14.25 15.75 V
Load Regulation Vo Tj=25°C,IO=5mA - 1.5A 150 mV
Tj=25°C,IO=0.25A - 0.75A 75 mV
Line regulation Vo VI =18.5V to 30V,Tj=25°C 150 mV
VI =17.7V to 30V,
Tj=25°C, IO =1A
150 mV
Quiescent Current Iq Tj=25°C, IO=<1A 8.0 mA
Quiescent Current Change Iq VI =17.5V to 30V 1.0 mA
Iq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 90 µV
Temperature coefficient of Vo Vo/T Io=5mA -1.8
mV/°C
Ripple Rejection RR VI =18.5V to 28.5V
f=120Hz,Tj=25°C
54 70 dB
Peak Output Current IPK Tj=25°C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25°C 250 mA
Dropout Voltage Vd Tj=25°C 2.0 V
UTC LM7818 ELECTRICAL CHARACTERISTICS
( VI=27V, Io=0.5A, Tj= 0°C - 125°C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25°C, IO=5mA - 1.0A 17.28 18.0 18.72 V
Output Voltage Vo VI =21V to 33V,IO=5mA - 1.0A 17.10 18.90 V
Load Regulation Vo Tj=25°C,IO=5mA - 1.5A 180 mV
Tj=25°C,IO=0.25A - 0.75A 90 mV
Line regulation Vo VI =21V to 33V,Tj=25°C 180 mV
VI =21V to 33V,
Tj=25°C, IO =<1A,PD<15W
180 mV
Quiescent Current Iq Tj=25°C, IO=<1A 8.0 mA
Quiescent Current Change Iq VI =21.5V to 33V 1.0 mA
Iq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 110 µV
Temperature coefficient of Vo Vo/T Io=5mA -2.2
mV/°C
Ripple Rejection RR VI =22V - 32V,f=120Hz,Tj=25°C53 69 dB
Peak Output Current IPK Tj=25°C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25°C 250 mA
Dropout Voltage Vd Tj=25°C 2.0 V
UTC LM78XX LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD. 6
QW-R101-006,C
UTC LM7824 ELECTRICAL CHARACTERISTICS
( VI=33V, Io=0.5A, Tj= 0°C - 12°C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25°C, IO=5mA - 1.0A 23.04 24.0 24.96 V
Output Voltage Vo VI =27V to 38V,IO=5mA - 1.0A 22.80 25.20 V
Load Regulation Vo Tj=25°C,IO=5mA - 1.5A 240 mV
Tj=25°C,IO=0.25A - 0.75A 120 mV
Line regulation Vo VI =27V to 38V,Tj=25°C 240 mV
VI =27V to 38V,Tj=25°C,Io=1A 240 mV
Quiescent Current Iq Tj=25°C, IO=<1A 8.0 mA
Quiescent Current Change Iq VI =28V to 38V 1.0 mA
Iq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 170 µV
Temperature coefficient of Vo Vo/T Io=5mA -2.8
mV/°C
Ripple Rejection RR VI =28V - 38V,f=120Hz,Tj=25°C50 66 dB
Peak Output Current IPK Tj=25°C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25°C 250 mA
Dropout Voltage Vd Tj=25°C 2.0 V
Note 1: 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 above represents pulse test conditions with junction
temperatures specified at the initiation of test.
Note 2: Power dissipation<0.5W
APPLICATION CIRCUIT
UTC LM78XX 3
2
1
C0
0.1
µ
F
C1
0.33
µ
F
Vi Vo
Note 1: To specify an output voltage, substitute voltage value for "XX".
Note 2: Bypass capacitors are recommended for optimum stability and transient response and should be located as
close as possible to the regulators.