TX78L05

TX78LXX http://www.txsemi.com Features  Output Current of 150mA  Output transistor safe area protection  Thermal Overload Protection  No external components  Short Circuit Protection  Package：SOT89-3 ,SOT23 and TO92  Output voltage accuracy: tolerance ±5% General Description TX78LXX is three-terminal positive regulators. replacement for a zener diode-resistor One of these regulators can deliver up to 150 mA Combination, an effective improvement in output of output current. The internal limiting and thermal impedance can be obtained, together with lower -shutdown features of the regulator make them quiescent current. essentially immune to overload. When used as a Selection Table Part No. TX78L33 TX78L05 TX78L06 TX78L08 TX78L09 TX78L12 TX78L15 TX78L18 TX78L24 Ver2.4 Output Voltage 3.3V 5.0V 6.0V 8.0V 9.0V 12V 15V 18V 24V Package SOT23 SOT89 TO92 1 Marking 78L33 78L05 78L06 78L08 78L09 78L12 78L15 78L18 78L24 Jun.13,2022 TX78LXX http://www.txsemi.com Pin Configuration SOT89 (Top View) Table1: TX78LXX series (SOT89 PKG) PIN NO. PIN NAME FUNCTION 1 VOUT Output voltage pin 2 GND GND pin 3 VIN Input voltage pin SOT23 (Top View) Table2: TX78LXX series (SOT23 PKG) PIN NO. PIN NAME FUNCTION 1 VOUT Output voltage pin 2 VIN Input voltage pin 3 GND GND pin TO92 (Top View) Table3: TX78LXX series (TO92 PKG) Ver2.4 PIN NO. PIN NAME FUNCTION 1 VOUT Output voltage pin 2 GND GND pin 3 VIN Input voltage pin 2 Jun.13,2022 TX78LXX http://www.txsemi.com Block Diagram Absolute Maximum Ratings（Ta=25℃） Parameter Rating Unit Input supply voltage: VIN MAX 30 V MAX. Output current: Iout 150 mA MAX Power: SOT89 0.5 W Pmax SOT23 0.2 W Junction temperature: Tj -55~150 ℃ Operation temperature: Topr -40~125 ℃ Storage temperature: Tstr -55~155 ℃ Soldering temperature and time +260(Recommended 10S) ℃ ESD Rating, (HBM) 2 KV Note: The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions. Ver2.4 3 Jun.13,2022 TX78LXX http://www.txsemi.com Electrical Characteristics (Cin=0.33uF, Co=0.1uF, Ta=25℃，unless otherwise noted) Parameter Symbol Conditions Min. Typ. Max. Io=40mA, VIN=10V 0.964vout vout 1.036vout 0.96vout vout 1.04vout 0.95vout vout 1.05vout VIN=7V~18V, Io=20mA -150 - 150 VIN=8V~18V, Io=20mA -100 - 100 -100 - 100 Io=1mA~40mA Output Voltage Vout VIN=7V~18V Io=1mA~10mA VIN=10V Line Regulation LNR VIN=10V, Load Regulation LDR Io=1mA~100mA VIN=10V, Io=1mA~40mA Dropout Voltage Output noise Voltage mV -30 - 30 - 2 - V VN F=10Hz to 100KHz - 40 - uV/Vo - 80 - dB VIN=10V, IOUT=40mA - - 5.5 mA VIN=8V~18V, IO=20mA -1.5 - 1.5 -0.1 - 0.1 Quiescent Current IQ Ta=25℃，f=120Hz, Io=40mA, VIN=8V~20V △IQ VIN=10V, IOUT=1mA~40mA, LNR: Line Regulation. The change in output voltage for a change in the input voltage. The measurement is made under conditions of low dissipation or by using pulse techniques such that the average chip temperature is not significantly affected. LDR: Load Regulation. The change in output voltage for a change in load current at constant chip temperature. Ver2.4 mV Ta=25℃，Io=100mA PSRR Change V VDIF Ripple Rejection Quiescent Current Unit 4 Jun.13,2022 mA TX78LXX http://www.txsemi.com Typical Performance Characteristics Ver2.4 5 Jun.13,2022 TX78LXX http://www.txsemi.com Operation Description TX78LXX is designed with Thermal Overload Protection that shuts down the circuit when subjected to an excessive power overload condition, and Output Transistor Safe-Area Compensation that reduces the output short circuit current as the voltage across the pass transistor is increased. In many low current applications, compensation capacitors are not required. However, it is recommended that the regulator input be bypassed with a capacitor if the regulator is connected to the power supply filter with long wire lengths, or if the output load capacitance is large. An input bypass capacitor should be selected to provide good high frequency characteristics to insure stable operation under all load conditions. A 0.33μFor larger tantalum, mylar, or other capacitor having low internal impedance at high frequencies should be chosen. The bypass capacitor should be mounted with the shortest possible leads directly across the regulator’s input terminals. Normally good construction techniques should be used to minimize ground loops and lead resistance drops since the regulator has no external sense lead. Typical Application Fig.1 Typical Application A common ground is required between the input and the output voltages. The input voltage must remain typically 2.0 V above the output voltage even during the low point on the input ripple voltage. Cin is required if regulator is located an appreciable distance from power supply filter. Co is not needed for stability; however, it does improve transient response. Fig.2 Constant Current Regulator Ver2.4 6 Jun.13,2022 TX78LXX http://www.txsemi.com Package Information 3-pin SOT89 Outline Dimensions Ver2.4 7 Jun.13,2022 TX78LXX http://www.txsemi.com 3-pin SOT23 Outline Dimensions Ver2.4 8 Jun.13,2022 TX78LXX http://www.txsemi.com 3-pin TO92 Outline Dimensions Ver2.4 9 Jun.13,2022 TX78LXX http://www.txsemi.com © Shanghai TX Electronics Sci-Tech Co., Ltd TX cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a TX product. No circuit patent license, copyrights or other intellectual property rights are implied. TX reserves the right to make changes to their products or specifications without notice. Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. Ver2.4 10 Jun.13,2022