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UNISONIC TECHNOLOGIES CO., LTD 78TXXAA LINEAR INTEGRATED CIRCUIT www.unisonic.com.tw 1 of 10 Copyright © 2013 Unisonic Technologies Co., Ltd QW-R101-044.A 3-TERMINAL 1.5A POSITIVE VOLTAGE REGULATOR  DESCRIPTION The UTC 78TXXAA family is monolithic fixed voltage regulator integrated circuit. They are suitable for applications requiring supply current up to 1.5 A.  FEATURES * Output current up to 1.5A * Fixed output voltage of 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V and 24V available * Thermal overload shutdown protection * Short circuit current limiting * Output transistor SOA protection  ORDERING INFORMATION Ordering Number Package Pin Assignment Packing Lead Free Halogen Free 1 2 3 78TXXAAL-TQ2-T 78TXXAAG-TQ2-T TO-263 I G O Tube 78TXXAAL-TQ2-R 78TXXAAG-TQ2-R TO-263 I G O Tape Reel Note: Pin Assignment: O: Output G: GND I: Input

78TXXAA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 2 of 10 www.unisonic.com.tw QW-R101-044.A  MARKING INFORMATION PACKAGE VOLTAGE CODE MARKING TO-263 05: 06: 07: 08: 09: 10: 12: 15: 18: 24: 5.0 V 6.0 V 7.0 V 8.0 V 9.0 V 1.0 V 1.2 V 1.5 V 1.8 V 2.4 V  BLOCK DIAGRAM

78TXXAA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 3 of 10 www.unisonic.com.tw QW-R101-044.A  APPLICATION CIRCUIT UTC 78TXXAA 3 CO=0.1 μFCI=0.33 μF VIN VOUT 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.

78TXXAA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 4 of 10 www.unisonic.com.tw QW-R101-044.A  ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified) PARAMETER SYMBOL RATING UNIT Input voltage VOUT=5~18V VIN 35 V VOUT=24V 40 V Output Current I OUT 1.5 A Power Dissipation P D Internally Limited W Operating Junction Temperature T OPR -20 ~ +150 °C Storage Temperature T STG -55 ~ +150 °C Note: Absolute maximum ratings are those values be yond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.  THERMAL DATA PARAMETER SYMBOL RATING UNIT Junction to Ambient θJA 65 °C/W Junction to Case θJC 5 °C/W  ELECTRICAL CHARACTERISTICS (IOUT=0.5A, TJ= 0°C~125°C, CI =0.33μF, CO=0.1μF, unless otherwise specified)(Note 1) For UTC 78T05AA (VIN =10V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT TJ =25°C, IOUT=5mA ~ 1.0A 4.80 5.0 5.20 V VIN =7.5V ~ 20V, IOUT=5mA ~ 1.0A,PD≤15W 4.75 5.25 V Dropout Voltage V D T J =25°C 2.0 V Load Regulation VOUT TJ =25°C,IOUT=5mA ~ 1.5A 100 mV TJ =25°C,IOUT=0.25A ~ 0.75A 50 mV Line regulation VOUT VIN =7V ~ 25V, TJ =25°C 50 mV VIN =7.5V ~ 20V, TJ =25°C, IOUT=1.0A 50 mV Quiescent Current I Q T J =25°C, IOUT≤1.0A 8.0 mA Quiescent Current Change IQ VIN =7.5V ~ 20V 1.0 mA IOUT=5mA ~ 1.0A 0.5 mA Output Noise Voltage eN 10Hz ≤f≤100kHz 40 μV Temperature Coefficient of Vo Vo/T I OUT=5mA -0.6 mV/°C Ripple Rejection RR V IN =8V ~ 18V,f=120Hz, TJ =25°C 62 80 dB Peak Output Current I PEAK T J =25°C 1.8 A Short-Circuit Current I SC V IN =35V, TJ =25°C 250 mA For UTC 78T06AA (VIN =11V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT TJ =25°C, IOUT=5mA ~ 1.0A 5.76 6.0 6.24 V VIN =8.5V ~ 21V, IOUT=5mA ~ 1.0A, PD≤15W 5.70 6.30 V Dropout Voltage V D T J =25°C 2.0 V Load Regulation VOUT TJ =25°C,IOUT=5mA ~ 1.5A 100 mV TJ =25°C,IOUT=0.25A~ 0.75A 50 mV Line regulation VOUT VIN =8V ~ 25V, TJ =25°C 60 mV VIN =8.5V ~ 21V, TJ =25°C,IOUT=1.0A 60 mV Quiescent Current I Q T J =25°C, IOUT≤1.0A 8.0 mA Quiescent Current Change IQ VIN =8.5V ~ 21V 1.0 mA IOUT=5mA ~ 1.0A 0.5 mA Output Noise Voltage eN 10Hz ≤f≤100kHz 45 μV Temperature Coefficient of Vo Vo/T I OUT=5mA -0.7 mV/°C Ripple Rejection RR V IN =9V ~ 19V,f=120Hz, TJ =25°C 59 75 dB Peak Output Current I PEAK T J =25°C 1.8 A Short-Circuit Current I SC V IN =35V, TJ =25°C 250 mA

78TXXAA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 5 of 10 www.unisonic.com.tw QW-R101-044.A  ELECTRICAL CHARACTERISTICS(Cont.) For UTC 78T07AA (VIN =13V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT TJ =25°C, IOUT=5mA - 1.0A 6.72 7.0 7.28 V VIN =9.5V ~ 22V, IOUT=5mA ~ 1.0A, PD≤15W 6.65 7.35 V Dropout Voltage V D T J =25°C 2.0 V Load Regulation VOUT TJ =25°C,IOUT=5mA ~ 1.5A 100 mV TJ =25°C,IOUT=0.25A ~ 0.75A 50 mV Line regulation VOUT VIN =9V ~ 25V, TJ =25°C 70 mV VIN =9.5V ~ 22V, TJ =25°C,IOUT=1.0A 70 mV Quiescent Current I Q T J =25°C, IOUT≤1.0A 8.0 mA Quiescent Current Change IQ VIN =9.5V ~ 22V 1.0 mA IOUT=5mA ~ 1.0A 0.5 mA Output Noise Voltage eN 10Hz ≤f≤100kHz 50 μV Temperature Coefficient of Vo Vo/T I OUT=5mA -0.8 mV/°C Ripple Rejection RR V IN =10V ~ 20V,f=120Hz, TJ =25°C 59 75 dB Peak Output Current I PEAK T J =25°C 1.7 A Short-Circuit Current I SC V IN =35V, TJ =25°C 250 mA For UTC 78T08AA (VIN =14V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT TJ =25°C, IOUT=5mA~ 1.0A 7.68 8.0 8.32 V VIN =10.5V ~ 23V, IOUT=5mA ~ 1.0A, PD≤15W 7.60 8.40 V Dropout Voltage V D T J =25°C 2.0 V Load Regulation VOUT TJ =25°C,IOUT=5mA ~ 1.5A 100 mV TJ =25°C,IOUT=0.25A ~ 0.75A 50 mV Line regulation VOUT VIN =10.5V ~ 25V, TJ =25°C 80 mV VIN =10.5V ~ 23V, TJ =25°C,IOUT=1.0A 80 mV Quiescent Current I Q T J =25°C, IOUT≤1.0A 8.0 mA Quiescent Current Change IQ VIN =10.5V ~ 23V 1.0 mA IOUT=5mA ~ 1.0A 0.5 mA Output Noise Voltage eN 10Hz ≤f≤100kHz 58 μV Temperature Coefficient of Vo Vo/T I OUT=5mA -0.9 mV/°C Ripple Rejection RR VIN =11.5V ~ 21.5V, f=120Hz, TJ =25°C 56 72 dB Peak Output Current I PEAK T J =25°C 1.8 A Short-Circuit Current I SC V IN =35V, TJ =25°C 250 mA

78TXXAA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 6 of 10 www.unisonic.com.tw QW-R101-044.A  ELECTRICAL CHARACTERISTICS(Cont.) For UTC 78T09AA (VIN =15V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT TJ =25°C, IOUT=5mA ~ 1.0A 8.64 9.0 9.36 V VIN =11.5V ~ 24V, IOUT=5mA ~ 1.0A,PD≤15W 8.55 9.45 V Dropout Voltage V D T J =25°C 2.0 V Load Regulation VOUT TJ =25°C,IOUT=5mA ~ 1.5A 100 mV TJ =25°C,IOUT=0.25A ~ 0.75A 50 mV Line regulation VOUT VIN =11.5V ~ 25 V, TJ =25°C 90 mV VIN =11.5V ~ 24V, TJ =25°C, IOUT=1.0A 90 mV Quiescent Current I Q T J =25°C, IOUT≤1.0A 8.0 mA Quiescent Current Change IQ VIN =11.5V ~ 24V 1.0 mA IOUT=5mA ~ 1.0A 0.5 mA Output Noise Voltage eN 10Hz ≤f≤100kHz 58 μV Temperature Coefficient of Vo Vo/T I OUT=5mA -1.1 mV/°C Ripple Rejection RR V IN =12.5V ~ 22.5V,f=120Hz, TJ =25°C 56 72 dB Peak Output Current I PEAK T J =25°C 1.8 A Short-Circuit Current I SC V IN =35V, TJ =25°C 250 mA For UTC 78T10AA (VIN =16V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT TJ =25°C, IOUT=5mA ~ 1.0A 9.60 10.0 10.40 V VIN =12.5V ~ 25V, IOUT=5mA ~ 1.0A,PD≤15W 9.50 10.50 V Dropout Voltage V D T J =25°C 2.0 V Load Regulation VOUT TJ =25°C,IOUT=5mA - 1.5A 100 mV TJ =25°C,IOUT=0.25A - 0.75A 50 mV Line regulation VOUT VIN =13V ~ 25V, TJ =25°C 100 mV VIN =13V ~ 25V, TJ =25°C,IOUT=1.0A 100 mV Quiescent Current I Q T J =25°C, IOUT≤1.0A 8.0 mA Quiescent Current Change IQ VIN =12.6V ~ 25V 1.0 mA IOUT=5mA - 1.0A 0.5 mA Output Noise Voltage eN 10Hz ≤f≤100kHz 58 μV Temperature coefficient of Vo Vo/T I OUT=5mA -1.1 mV/°C Ripple Rejection RR V IN =13V - 23V,f=120Hz, TJ =25°C 56 72 dB Peak Output Current I PEAK T J =25°C 1.8 A Short-Circuit Current I SC V IN =35V, TJ =25°C 250 mA

78TXXAA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 7 of 10 www.unisonic.com.tw QW-R101-044.A  ELECTRICAL CHARACTERISTICS(Cont.) For UTC 78T12AA (VIN =19V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT TJ =25°C, IOUT=5mA ~ 1.0A 11.52 12.0 12.48 V VIN =14.5V ~ 27V, IOUT=5mA ~ 1.0A,PD≤15W 11.40 12.60 V Dropout Voltage V D T J =25°C 2.0 V Load Regulation VOUT TJ =25°C,IOUT=5mA ~ 1.5A 100 mV TJ =25°C,IOUT=0.25A ~ 0.75A 50 mV Line regulation VOUT VIN =14.5V ~ 30V, TJ =25°C 120 mV VIN =14.6V ~ 27V, TJ =25°C, IOUT=1.0A 120 mV Quiescent Current I Q T J =25°C, IOUT≤1.0A 8.0 mA Quiescent Current Change IQ VIN =14.5V ~ 30V 1.0 mA IOUT=5mA ~ 1.0A 0.5 mA Output Noise Voltage eN 10Hz ≤f≤100kHz 75 μV Temperature Coefficient of Vo Vo/T I OUT=5mA -1.5 mV/°C Ripple Rejection RR V IN =15V - 25V,f=120Hz, TJ =25°C 55 72 dB Peak Output Current I PEAK T J =25°C 1.8 A Short-Circuit Current I SC V IN =35V, TJ =25°C 250 mA For UTC 78T15AA (VIN =23V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT TJ =25°C, IOUT=5mA ~ 1.0A 14.40 15.0 15.60 V VIN =17.5V ~ 30V, IOUT=5mA ~ 1.0A,PD≤15W 14.25 15.75 V Dropout Voltage V D T J =25°C 2.0 V Load Regulation VOUT TJ =25°C,IOUT=5mA ~ 1.5A 100 mV TJ =25°C,IOUT=0.25A ~ 0.75A 50 mV Line regulation VOUT VIN =18.5V ~ 30V, TJ =25°C 150 mV VIN =17.7V ~ 30V, TJ =25°C, IOUT =1.0A 150 mV Quiescent Current I Q T J =25°C, IOUT≤1.0A 8.0 mA Quiescent Current Change IQ VIN =17.5V ~ 30V 1.0 mA IOUT=5mA ~ 1.0A 0.5 mA Output Noise Voltage eN 10Hz ≤f≤100kHz 90 μV Temperature Coefficient of Vo Vo/T I OUT=5mA -1.8 mV/ C Ripple Rejection RR V IN =18.5V ~ 28.5V,f=120Hz, TJ =25°C 54 70 dB Peak Output Current I PEAK T J =25°C 1.8 A Short-Circuit Current I SC V IN =35V, TJ =25°C 250 mA

78TXXAA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 8 of 10 www.unisonic.com.tw QW-R101-044.A  ELECTRICAL CHARACTERISTICS(Cont.) For UTC 78T18AA (VIN =27V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT TJ =25°C, IOUT=5mA ~ 1.0A 17.28 18.0 18.72 V VIN =21V ~ 33V, IOUT=5mA ~ 1.0A, PD≤15W 17.10 18.90 V Dropout Voltage V D T J =25°C 2.0 V Load Regulation VOUT TJ =25°C,IOUT=5mA ~ 1.5A 100 mV TJ =25°C,IOUT=0.25A ~ 0.75A 50 mV Line regulation VOUT VIN =21V ~ 33V, TJ =25°C 180 mV VIN =21V ~ 33V, TJ =25°C, IOUT =1.0A 180 mV Quiescent Current I Q T J =25°C, IOUT≤1.0A 8.0 mA Quiescent Current Change IQ VIN =21.5V ~ 33V 1.0 mA IOUT=5mA ~ 1.0A 0.5 mA Output Noise Voltage eN 10Hz ≤f≤100kHz 110 μV Temperature Coefficient of Vo Vo/T I OUT=5mA -2.2 mV/°C Ripple Rejection RR V IN =22V ~ 32V,f=120Hz, TJ =25°C 53 69 dB Peak Output Current I PEAK T J =25°C 1.8 A Short-Circuit Current I SC V IN =35V, TJ =25°C 250 mA For UTC 78T24AA (VIN =33V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT TJ =25°C, IOUT=5mA ~ 1.0A 23.04 24.0 24.96 V VIN =27V ~ 38V, IOUT=5mA ~ 1.0A, ,PD≤15W 22.80 25.20 V Dropout Voltage V D T J =25°C 2.0 V Load Regulation VOUT TJ =25°C,IOUT=5mA ~ 1.5A 100 mV TJ =25C,IOUT=0.25A ~ 0.75A 50 mV L i n e r e g u l a t i o n VOUT VIN =27V ~ 38V, TJ =25°C 240 mV VIN =27V ~ 38V, TJ =25°C,I OUT=1.0A 240 mV Quiescent Current I Q T J =25°C, IOUT≤1.0A 8.0 mA Quiescent Current Change IQ VIN =28V ~ 38V 1.0 mA IOUT=5mA ~ 1.0A 0.5 mA Output Noise Voltage eN 10Hz ≤f≤100kHz 170 μV Temperature Coefficient of Vo Vo/T I OUT=5mA -2.8 mV/°C Ripple Rejection RR V IN =28V ~ 38V, f=120Hz, TJ =25°C 50 66 dB Peak Output Current I PEAK T J =25°C 1.8 A Short-Circuit Current I SC V IN =35V, TJ =25°C 250 mA Note 1: The Maximum steady state us able output current are depe ndent 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

78TXXAA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 9 of 10 www.unisonic.com.tw QW-R101-044.A  TYPICAL CHARACTERISTICS Power Dissipation, PD (W) Output Voltage, VO (V) -25-50 Output Voltage Change vs. Junction TemperatureOutput Voltage Change, △VO (mV) Junction Temperature, TJ (℃) 50 75 15001 0 0 Output Voltage vs. Input Voltage Input Voltage, VIN (V) 048 1 0 1 2 -200 -100 100 200 25 125 -150 -50 150 IO=0A IO=1A IO=0.5A IO=5mA TJ=25℃ Output Voltage, VO (mA) GND-Pin Current, IQ (mA) Dropout Voltage, VD (V)

78TXXAA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 10 of 10 www.unisonic.com.tw QW-R101-044.A  TYPICAL CHARACTERISTICS(Cont.) Output Peak Current, IO peak (A) Ripple Rejection, RR (dB) Output Voltage vs. Output Current Output Current, IO (A) 0 0.4 1.6 2.4 Output Voltage, VD (V) 1.2 0.8 2

9 VIN=10V

Output Current, IO (A) 2.5 0 0.25 0.75 10.5 Dropout Voltage, VD (V) Dropout Voltage vs. Output Current 0.5 1.5 1.25 1.5 TJ=25 UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) 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 systems where malfunction 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 information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.