WEITRON WT78LXX Positive Voltage Regulator P b Lead(Pb)-Free General Description: The WT78LXX series of positive regulators are available in the SOP-8 package and with 5V, 6V, 8V, 9V, 10V, 12V, 15V, 18V and 24V fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Each type employs internal current limiting, thermal shut-down and safe operating area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 100mA output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. WT78LXX is characterized for operation from 0°C to +125°C. Features: * Internal Short-Circuit Current Limiting. * Internal Thermal Overload Protection. * No External Components Required. Connection Diagrams SOP-8 Package (Top View) GND Vin GND NC 8 7 6 5 Date Code SOT-89 Package (Top View) 78LXX XXXX 1 2 3 4 Vout GND Vout 5V:05 6V:06 8V:08 9V:09 10V:10 12V:12 NC 15V:15 GND 18V:18 24V:24 Date Code Vout 5V:05 6V:06 78LXX 8V:08 XXXX 9V:09 10V:10 12V:12 Vin 15V:15 Gnd 18V:18 24V:24 Vout TO-92 Package (Top View) Date Code 78LXX XX X Vout GND Vin Vout 5V:05 6V:06 8V:08 9V:09 10V:10 12V:12 15V:15 18V:18 24V:24 Typical Application Vin Vout WT78LXX Gnd Cin 0.33µF WEITRON hpp://www.weitron.com.tw Cout 0.1µF 1/10 23-Mar-07 WT78LXX Ordering Information Ordering Number Output Voltage WT78L05G WEITRON Package Shipping TO-92 500 Units/Bag WT78L05K 5V 5V SOT-89 1,000 Units/Tape&Reel WT78L05M 5V SOP-8 3,000 Units/Tape&Reel WT78L06G TO-92 500 Units/Bag WT78L06K 6V 6V SOT-89 1,000 Units/Tape&Reel WT78L06M 6V SOP-8 3,000 Units/Tape&Reel WT78L08G TO-92 500 Units/Bag WT78L08K 8V 8V SOT-89 1,000 Units/Tape&Reel WT78L08M 8V SOP-8 3,000 Units/Tape&Reel WT78L09G TO-92 500 Units/Bag WT78L09K 9V 9V SOT-89 1,000 Units/Tape&Reel WT78L09M 9V SOP-8 3,000 Units/Tape&Reel WT78L10G TO-92 500 Units/Bag WT78L10K 10V 10V SOT-89 1,000 Units/Tape&Reel WT78L10M 10V SOP-8 3,000 Units/Tape&Reel WT78L12G 12V TO-92 500 Units/Bag WT78L12K 12V SOT-89 1,000 Units/Tape&Reel WT78L12M 12V SOP-8 3,000 Units/Tape&Reel WT78L15G 10V TO-92 500 Units/Bag WT78L15K 10V SOT-89 1,000 Units/Tape&Reel WT78L15M 10V SOP-8 3,000 Units/Tape&Reel WT78L18G 12V TO-92 500 Units/Bag WT78L18K 12V SOT-89 1,000 Units/Tape&Reel WT78L18M 12V SOP-8 3,000 Units/Tape&Reel WT78L24G 24V TO-92 500 Units/Bag WT78L24K 24V SOT-89 1,000 Units/Tape&Reel WT78L24M 24V SOP-8 3,000 Units/Tape&Reel http://www.weitron.com.tw 2/10 23-Mar-07 WT78LXX Absolute Maximum Ratings Parameter Input Voltage Ratings WT78L05~10 30 WT78L12~18 35 WT78L24 40 Unit V Output Current 100 mA Power Dissipation 750* mW 0 ~ +125 °C -55 ~ +150 °C Operating Junction Temperature Range Storage temperature range *When test in free air confition, without heat sinking. Electrical Characteristics WT78L05 (Refer to the test circuits, Tj=0~125°C, IO=40mA, Vin=10V, Cin=0.33µF, CO=0.1µF unless otherwise specified) Parameter Output Voltage Vin=10V, IO=40mA, Tj=25°C 7V ≤ Vin ≤ 20V, 1mA ≤ IO ≤ 40mA 7V ≤ Vin ≤ Vmax, 1mA ≤ IO ≤ 70mA (Note2) Line Regulation 7V ≤ Vin ≤ 20V, IO=40mA, Tj=25°C 8V ≤ Vin ≤ 20V, IO=40mA, Tj=25°C Load Regulation Vin = 10V, 1mA ≤ IO ≤ 100mA, Tj=25°C Vin = 10V, 1mA ≤ IO ≤ 40mA, Tj=25°C Quiescent Current Vin = 10V, IO =0mA, Tj=25°C Quiescent Current Change Vin = 10V, 1mA ≤ IO ≤ 40mA 8V ≤ Vin ≤ 20V, IO=40mA Output Noise Voltage 10Hz ≤ f ≤ 100KHz Ripple Rejection 8V ≤ Vin ≤ 20V, f=120Hz, Tj=25°C Dropout Voltage IO = 100mA, Tj=25°C Temperature Coefficient of Output Voltage IO = 5mA, 0°C ≤ Tj ≤ 125°C WEITRON http://www.weitron.com.tw Symbol Min Typ Max Unit 4.85 4.75 5.0 - 5.15 5.25 V ∆VO - 18 10 75 54 mV ∆VO - 20 5 60 30 mV IQ - 3.0 5.0 mA ∆IQ - - 0.1 1.0 mA Vn - 40 - µV RR 47 62 - dB VD - 1.7 - V ∆VO / ∆Tj - -0.65 - mV/°C VO A-Rank(3%) B-Rank(5%) 3/10 23-Mar-07 WT78LXX WT78L06 (Refer to the test circuits, Tj=0~125°C, IO=40mA, Vin=12V, Cin=0.33µF, CO=0.1µF unless otherwise specified) Parameter Symbol Min Typ Max Unit 5.82 5.70 6.0 - 6.18 6.30 V - 64 54 175 125 mV - 12.8 5.8 80 40 mV IQ - 3.9 6.0 mA ∆IQ - - 0.1 1.5 mA Vn - 49 - µV RR 40 46 - dB VD - 1.7 - V ∆VO / ∆Tj - 0.75 - mV/°C Output Voltage Vin=12V, IO=40mA, Tj=25°C A-Rank(3%) VO 8.5V ≤ Vin ≤ 20V, 1mA ≤ IO ≤ 40mA B-Rank(5%) 8.5V ≤ Vin ≤ Vmax, 1mA ≤ IO ≤ 70mA (Note2) Line Regulation 8.5V ≤ Vin ≤ 20V, IO=40mA, Tj=25°C ∆VO 9V ≤ Vin ≤ 20V, IO=40mA, Tj=25°C Load Regulation Vin = 12V, 1mA ≤ IO ≤ 100mA, Tj=25°C ∆VO Vin = 12V, 1mA ≤ IO ≤ 70mA, Tj=25°C Quiescent Current Vin = 12V, IO =0mA, Tj=25°C Quiescent Current Change Vin = 12V, 1mA ≤ IO ≤ 40mA 9V ≤ Vin ≤ 20V, IO=40mA Output Noise Voltage 10Hz ≤ f ≤ 100KHz Ripple Rejection 10V ≤ Vin ≤ 20V, f=120Hz, Tj=25°C Dropout Voltage IO = 100mA, Tj=25°C Temperature Coefficient of Output Voltage IO = 5mA, 0°C ≤ Tj ≤ 125°C WT78L08 (Refer to the test circuits, Tj=0~125°C, IO=40mA, Vin=14V, Cin=0.33µF, CO=0.1µF unless otherwise specified) Parameter Symbol Min Typ Max Unit 7.76 7.60 8.0 - 8.24 8.40 V - 10 8 175 125 mV - 15 8 80 40 mV IQ - 2.0 5.5 mA ∆IQ - - 0.1 1.5 mA Vn - 49 - µV RR 39 45 - dB VD - 1.7 - V ∆VO / ∆Tj - 0.75 - mV/°C Output Voltage Vin=14V, IO=40mA, Tj=25°C A-Rank(3%) VO 10.5V ≤ Vin ≤ 23V, 1mA ≤ IO ≤ 40mA B-Rank(5%) 10.5V≤ Vin ≤ Vmax, 1mA≤ IO ≤70mA (Note2) Line Regulation 10.5V ≤ Vin ≤ 23V, IO=40mA, Tj=25°C ∆VO 11V ≤ Vin ≤ 23V, IO=40mA, Tj=25°C Load Regulation Vin = 14V, 1mA ≤ IO ≤ 100mA, Tj=25°C ∆VO Vin = 14V, 1mA ≤ IO ≤ 70mA, Tj=25°C Quiescent Current Vin = 14V, IO = 0mA, Tj=25°C Quiescent Current Change Vin = 14V, 1mA ≤ IO ≤ 40mA 11V ≤ Vin ≤ 23V, IO = 40mA Output Noise Voltage 10Hz ≤ f ≤ 100KHz Ripple Rejection 11V ≤ Vin ≤ 21V, f=120Hz, Tj=25°C Dropout Voltage IO = 100mA, Tj=25°C Temperature Coefficient of Output Voltage IO = 5mA, 0°C ≤ Tj ≤ 125°C WEITRON http://www.weitron.com.tw 4/10 23-Mar-07 WT78LXX WT78L09 (Refer to the test circuits, Tj=0~125°C, IO=40mA, Vin=15V, Cin=0.33µF, CO=0.1µF unless otherwise specified) Parameter Output Voltage Vin=15V, IO=40mA, Tj=25°C 11.5V ≤ Vin ≤ 24V, 1mA ≤ IO ≤ 40mA 11.5V≤ Vin ≤Vmax, 1mA≤ IO ≤70mA (Note2) Line Regulation 11.5V ≤ Vin ≤ 24V, IO=40mA, Tj=25°C 13V ≤ Vin ≤ 24V, IO=40mA, Tj=25°C Load Regulation Vin = 15V, 1mA ≤ IO ≤ 100mA, Tj=25°C Vin = 15V, 1mA ≤ IO ≤ 40mA, Tj=25°C Symbol Min Typ Max Unit 8.73 8.55 9.0 - 9.27 9.45 V ∆VO - 90 100 200 150 mV ∆VO - 20 10 90 45 mV IQ - 2.0 6.0 mA ∆IQ - - 0.1 1.5 mA Vn - 49 - µV RR 38 44 - dB VD - 1.7 - V ∆VO / ∆Tj - 0.75 - mV/°C VO Quiescent Current Vin = 15V, IO =0mA, Tj=25°C Quiescent Current Change Vin = 15V, 1mA ≤ IO ≤ 40mA 13V ≤ Vin ≤ 24V, IO=40mA Output Noise Voltage 10Hz ≤ f ≤ 100KHz Ripple Rejection 12V ≤ Vin ≤ 23V, f=120Hz, Tj=25°C Dropout Voltage IO = 100mA, Tj=25°C Temperature Coefficient of Output Voltage IO = 5mA, 0°C ≤ Tj ≤ 125°C A-Rank(3%) B-Rank(5%) WT78L10 (Refer to the test circuits, Tj=0~125°C, IO=40mA, Vin=17V, Cin=0.33µF, CO=0.1µF unless otherwise specified) Parameter Output Voltage Vin=17V, IO=40mA, Tj=25°C 13V ≤ Vin ≤ 25V, 1mA ≤ IO ≤ 40mA 13V≤ Vin ≤Vmax, 1mA≤ IO ≤70mA (Note2) Line Regulation 13V ≤ Vin ≤ 25V, IO=40mA, Tj=25°C 14V ≤ Vin ≤ 25V, IO=40mA, Tj=25°C Load Regulation Vin = 17V, 1mA ≤ IO ≤ 100mA, Tj=25°C Vin = 17V, 1mA ≤ IO ≤ 40mA, Tj=25°C Quiescent Current Vin = 17V, IO =0mA, Tj=25°C Quiescent Current Change Vin = 17V, 1mA ≤ IO ≤ 40mA 14V ≤ Vin ≤ 25V, IO=40mA Output Noise Voltage 10Hz ≤ f ≤ 100KHz Ripple Rejection 15V ≤ Vin ≤ 25V, f=120Hz, Tj=25°C Dropout Voltage IO = 100mA, Tj=25°C WEITRON http://www.weitron.com.tw Symbol VO Min Typ Max Unit 9.70 9.50 10.0 - 10.30 10.50 V ∆VO - 51 42 175 125 mV ∆VO - 20 11 90 40 mV IQ - 4.2 6.0 mA ∆IQ - - 0.1 1.5 mA Vn - 62 - µV RR 37 44 - dB VD - 1.7 - V A-Rank(3%) B-Rank(5%) 5/10 23-Mar-07 WT78LXX WT78L12 (Refer to the test circuits, Tj=0~125°C, IO=40mA, Vin=19V, Cin=0.33µF, CO=0.1µF unless otherwise specified) Parameter Output Voltage Vin=19V, IO=40mA, Tj=25°C 14.5V ≤ Vin ≤ 27V, 1mA ≤ IO ≤ 40mA 14.5V≤ Vin ≤Vmax, 1mA≤ IO ≤70mA (Note2) Line Regulation 14.5V ≤ Vin ≤ 27V, IO=40mA, Tj=25°C 16V ≤ Vin ≤ 27V, IO=40mA, Tj=25°C Load Regulation Vin = 19V, 1mA ≤ IO ≤ 100mA, Tj=25°C Vin = 19V, 1mA ≤ IO ≤ 40mA, Tj=25°C Symbol Min Typ Max Unit 11.64 11.40 12.0 - 12.36 12.60 V ∆VO - 25 20 300 250 mV ∆VO - 25 12 150 75 mV IQ - 2.0 6.0 mA ∆IQ - - 0.1 1.5 mA Vn - 80 - µV RR 37 65 - dB VD - 1.7 - V ∆VO / ∆Tj - -1.0 - mV/°C VO Quiescent Current Vin = 19V, IO =0mA, Tj=25°C Quiescent Current Change Vin = 19V, 1mA ≤ IO ≤ 40mA 16V ≤ Vin ≤ 27V, IO=40mA Output Noise Voltage 10Hz ≤ f ≤ 100KHz Ripple Rejection 15V ≤ Vin ≤ 25V, f=120Hz, Tj=25°C Dropout Voltage IO = 100mA, Tj=25°C Temperature Coefficient of Output Voltage IO = 5mA, 0°C ≤ Tj ≤ 125°C A-Rank(3%) B-Rank(5%) WT78L15 (Refer to the test circuits, Tj=0~125°C, IO=40mA, Vin=23V, Cin=0.33µF, CO=0.1µF unless otherwise specified) Parameter Output Voltage Vin=23V, IO=40mA, Tj=25°C 17.5V ≤ Vin ≤ 30V, 1mA ≤ IO ≤ 40mA 17.5V≤ Vin ≤Vmax, 1mA≤ IO ≤70mA (Note2) Line Regulation 17.5V ≤ Vin ≤ 30V, IO=40mA, Tj=25°C 20V ≤ Vin ≤ 30V, IO=40mA, Tj=25°C Load Regulation Vin = 23V, 1mA ≤ IO ≤ 100mA, Tj=25°C Vin = 23V, 1mA ≤ IO ≤ 70mA, Tj=25°C Quiescent Current Vin = 23V, IO =0mA, Tj=25°C Quiescent Current Change Vin = 23V, 1mA ≤ IO ≤ 40mA 20V ≤ Vin ≤ 30V, IO=40mA Output Noise Voltage 10Hz ≤ f ≤ 100KHz Ripple Rejection 18.5V ≤ Vin ≤ 28.5V, f=120Hz, Tj=25°C Dropout Voltage IO = 100mA, Tj=25°C Temperature Coefficient of Output Voltage IO = 5mA, 0°C ≤ Tj ≤ 125°C WEITRON http://www.weitron.com.tw Symbol Min Typ Max Unit 14.55 14.25 15.0 - 15.45 15.75 V ∆VO - 25 15 150 75 mV ∆VO - 20 25 150 150 mV IQ - 2.2 6.5 mA ∆IQ - - 0.1 1.5 mA Vn - 90 - µV RR 34 63 - dB VD - 1.7 - V ∆VO / ∆Tj - -1.3 - mV/°C VO A-Rank(3%) B-Rank(5%) 6/10 23-Mar-07 WT78LXX WT78L18 (Refer to the test circuits, Tj=0~125°C, IO=40mA, Vin=27V, Cin=0.33µF, CO=0.1µF unless otherwise specified) Parameter Output Voltage Vin=27V, IO=40mA, Tj=25°C 21V ≤ Vin ≤ 33V, 1mA ≤ IO ≤ 40mA 21V≤ Vin ≤Vmax, 1mA≤ IO ≤70mA (Note2) Line Regulation 21V ≤ Vin ≤ 33V, IO=40mA, Tj=25°C 22V ≤ Vin ≤ 33V, IO=40mA, Tj=25°C Load Regulation Vin = 27V, 1mA ≤ IO ≤ 100mA, Tj=25°C Vin = 27V, 1mA ≤ IO ≤ 40mA, Tj=25°C Symbol Min Typ Max Unit 17.46 17.10 18.0 - 18.54 18.90 V ∆VO - 145 135 300 250 mV ∆VO - 30 15 170 85 mV IQ - 2.0 6.0 mA ∆IQ - - 0.1 1.5 mA Vn - 150 - µV RR 34 48 - dB VD - 1.7 - V ∆VO / ∆Tj - -1.8 - mV/°C VO Quiescent Current Vin = 27V, IO =0mA, Tj=25°C Quiescent Current Change Vin = 27V, 1mA ≤ IO ≤ 40mA 21V ≤ Vin ≤ 33V, IO=40mA Output Noise Voltage 10Hz ≤ f ≤ 100KHz Ripple Rejection 23V ≤ Vin ≤ 33V, f=120Hz, Tj=25°C Dropout Voltage IO = 100mA, Tj=25°C Temperature Coefficient of Output Voltage IO = 5mA, 0°C ≤ Tj ≤ 125°C A-Rank(3%) B-Rank(5%) WT78L24 (Refer to the test circuits, Tj=0~125°C, IO=40mA, Vin=33V, Cin=0.33µF, CO=0.1µF unless otherwise specified) Parameter Output Voltage Vin=33V, IO=40mA, Tj=25°C 27V ≤ Vin ≤ 38V, 1mA ≤ IO ≤ 40mA 27V≤ Vin ≤Vmax, 1mA≤ IO ≤70mA (Note2) Line Regulation 27V ≤ Vin ≤ 38V, IO=40mA, Tj=25°C 28V ≤ Vin ≤ 38V, IO=40mA, Tj=25°C Load Regulation Vin = 33V, 1mA ≤ IO ≤ 100mA, Tj=25°C Vin = 33V, 1mA ≤ IO ≤ 40mA, Tj=25°C Quiescent Current Vin = 33V, IO =0mA, Tj=25°C Quiescent Current Change Vin = 33V, 1mA ≤ IO ≤ 40mA 27V ≤ Vin ≤ 38V, IO=40mA Output Noise Voltage 10Hz ≤ f ≤ 100KHz Ripple Rejection 27V ≤ Vin ≤ 38V, f=120Hz, Tj=25°C Dropout Voltage IO = 100mA, Tj=25°C Temperature Coefficient of Output Voltage IO = 5mA, 0°C ≤ Tj ≤ 125°C Symbol Min Typ Max Unit 23.28 22.80 24.0 - 24.72 25.20 V ∆VO - 160 150 300 250 mV ∆VO - 40 20 200 100 mV IQ - 2.2 6.0 mA ∆IQ - - 0.1 1.5 mA Vn - 200 - µV RR 34 45 - dB VD - 1.7 - V ∆VO / ∆Tj - -2.0 - mV/°C VO A-Rank(3%) B-Rank(5%) Note1: The Maximum steady state usable output current is dependent on input voltage, heat sinking, lead length of the package and copper of PCB .The data above represent pulse test conditions with junction temperatures specified at the initiation of test. Note2: Power dissipation<0.75W WEITRON http://www.weitron.com.tw 7/10 23-Mar-07 WT78LXX Typical Performance Characteristics WEITRON http://www.weitron.com.tw 8/10 23-Mar-07 WT78LXX TO-92 PACKAGE OUTLINE DIMENSIONS(Unit:mm) A D Dim A C D E L b b1 e e1 S1 L C b e1 Min 4.45 0.36 4.44 3.30 12.70 0.36 0.36 2.42 1.15 1.02 Max 4.70 0.51 4.70 3.81 0.51 0.76 2.66 1.39 - C E S1 e TO-92 SOT-89 PACKAGE OUTLINE DIMENSIONS(Unit:mm) SOT-89 Dim A B C D E F G H I J K M J 5° F B E M A C D H I K G WEITRON http://www.weitron.com.tw 9/10 Min 4.40 4.05 1.50 1.30 2.40 0.89 Max 4.60 4.25 1.70 1.50 2.60 1.20 3.00 REF 1.50 REF 0.40 0.52 1.40 1.60 0.35 0.41 0.70 REF 23-Mar-07 WT78LXX A SOP-8 PACKAGE OUTLINE DIMENSIONS(Unit:mm) C B J WEITRON H http://www.weitron.com.tw M G F L K D E 10/10 Dim A B C D E F M H L J K G SOP-8 Min Max 6.20 5.80 4.80 5.00 3.80 4.00 0º 8º 0.40 0.90 0.19 0.25 0.10 0.25 0.35 0.49 1.35 1.75 0.375 REF 45º 1.27 TYP 23-Mar-07