AP78L12 12V OUTPUT 3-TERMINAL POSITIVE REGULATORS General Description Features • • • • • • • • • • 12.0V output voltage with tolerances of ±5% over the temperature range Output current in excess of 100mA Internal thermal overload protection Output transistor safe area protection Internal short circuit current limiting No external components Available in plastic TO92-3L and plastic SOP-8L low profile packages Lead-free Package: TO92-3L (Note 1) SOP-8L: Available in “Green” Molding Compound (No Br, Sb) (Note 2) Lead Free Finish / RoHS Compliant (Note 3) The AP78L12 of three terminal positive regulators is available with fixed output voltages making them useful in a wide range of applications. These regulators can provide local on card regulation, eliminating the distribution problems associated with single point regulation. The voltages available allow the AP78L12 to be used in logic system, instrumentation, HiFi, and other solid state electronic equipment. The AP78L12 is available in the plastic TO92-3L package, the plastic SOP-8L package using industrial standard package technology. With adequate heat sinking the regulator can deliver 100mA output current. Current limiting is included to limit the peak output current to a safe value. Safe area protection for the output transistors is provided to limit internal power dissipation. If internal power dissipation becomes too high for the heat sinking provided, the thermal shutdown circuit takes over preventing the IC from overheating. Applications Well suited for a wide range of applications, such as: • • • • Lighting Ballast STB Power supply Audio Equipment Ordering Information AP 78 L 12 X X X Package V : TO92-3L S : SOP-8L Note: Package Packaging Code (Note 4) AP78L12V V TO92-3L AP78L12S S SOP-8L Note: Packing -A : Ammo Box -13 : Taping 1. TO92-3L is available in “Lead Free” only. 2. SOP-8L is available in “Green” only. 3. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. Device Lead-free Lead Free L : Lead Free (Note 1) G : Green (Note 2) Ammo Box / Tube Part Number Quantity Suffix 2000/Box -A NA NA 13” Tape and Reel Part Number Quantity Suffix NA NA 2500/Tape & Reel -13 4. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be on our website at http://www.diodes.com/datasheets/ap02001.pdf. AP78L12 Rev. 1 1 of 9 www.diodes.com APRIL 2007 © Diodes Incorporated AP78L12 12.0V OUTPUT 3-TERMINAL POSITIVE REGULATORS Pin Assignments (1) TO92-3L (Bottom View) V OUT GND VIN TO92-3L (2) SOP-8L (Top View) VOUT 1 8 VIN GND 2 7 GND GND 3 6 GND NC 4 5 NC 78L12 SOP-8L AP78L12 Rev. 1 2 of 9 www.diodes.com APRIL 2007 © Diodes Incorporated AP78L12 12.0V OUTPUT 3-TERMINAL POSITIVE REGULATORS Pin Descriptions Name VIN Description Operating Voltage Input VOUT Voltage Output Pin GND Ground NC No Connection Absolute Maximum Ratings Symbol Parameter Rating Unit V VCC Supply Voltage +30 VOUT Output Voltage to Ground 12 TST TOP TMJ AP78L12 Rev. 1 Storage Temperature Operating Junction Temperature Maximum Junction Temperature 3 of 9 www.diodes.com V -65 to +150 o -20 to 125 o 150 o C C C APRIL 2007 © Diodes Incorporated AP78L12 12.0V OUTPUT 3-TERMINAL POSITIVE REGULATORS Electrical Characteristics (All Output Voltage Versions) Limits in standard typeface are for TA=25℃, Bold typeface applies over -20℃to 125℃ for SOP-8L and TO-92 Packages. Unless otherwise specified: VIN=19V, IO=40mA, CI=0.33µF, CO=0.1µF. Symbol VO Parameter Output Voltage ∆VO Line Regulation ∆VO Load Regulation IQ Quiescent Current Change Vn Output Noise Voltage ∆VIN/∆VOUT Ripple Rejection Average Output Voltage Tempco VIN(Min) Minimum Value of Input Voltage Required to Maintain Line Regulation θJC Note: Typ. Max. 11.5 12 12.5 11.4 f=120Hz 15V≤VIN≤25V 11.4 30 20 30 10 3 Thermal Resistance Junction to Ambient Thermal Resistance Junction to case IO=5mA 40 Unit V 12.6 16V≤VIN≤27V 1mA≤IO≤40mA Peak Output Current ∆VO/∆T θJA 14.5V≤VIN≤27V 1mA≤IO≤40mA 1mA≤IO≤70mA 14.5V≤VIN≤27V 16V≤VIN≤27V 1mA≤IO≤100mA 1mA≤IO≤40mA Min. Quiescent Current ∆IQ IPK Conditions 12.6 180 110 100 50 5 1 0.1 mV mV mA 80 µV 54 dB 140 mA -1.0 mV/ oC 13.7 TO92-3L (Note 5) 176 SOP-8L (Note 6) 152 TO92-3L (Note 5) 33 SOP-8L (Note 6) 7 14.5 V o C/W 5. Test conditions for TO92-3L: No heat sink, no air flow. 6. Test conditions for SOP-8L, TO92-3L: Device mounted on 2 oz. copper, minimum recommended pad layout, FB-4 PCB. AP78L12 Rev. 1 4 of 9 www.diodes.com APRIL 2007 © Diodes Incorporated AP78L12 12.0V OUTPUT 3-TERMINAL POSITIVE REGULATORS Typical Performance Characteristics Quiescent Current Peak Output Current 300 2.960 Quiescent Current(mA) OUTPUT CURRENT(mA) △ VOUT=100mV TA=-25℃ 250 200 TA=25℃ 150 TA=125℃ 100 50 2.955 2.950 2.945 2.940 VOUT=12V I OUT=40mA TA=25℃ 2.935 2.930 0 14 18 22 26 10 30 15 Quiescent Current INPUT-OUTPUT DIFFERENTIAL(V) Quiescent Current(mA) 3.0 2.9 2.8 2.7 2.6 30 DROPOUT VOLTAGE 2.1 VIN =19V VOUT=12V I OUT=40mA 3.1 25 INPUT VOLTAGE(V) INPUT-OUTPUT DIFFERENTIAL(V) 3.2 20 1.9 I OUT=70mA 1.7 1.5 1.3 I OUT=40mA 1.1 I OUT=1mA 0.9 Droput Conditions △ V OUT=2% of VOUT 0.7 0.5 2.5 -25 AP78L12 Rev. 1 0 25 50 75 100 125 JUNCTION TEMPERATURE(℃ ) 5 of 9 www.diodes.com -25 0 25 50 75 100 125 JUNCTION TEM PERATURE(℃) APRIL 2007 © Diodes Incorporated AP78L12 12.0V OUTPUT 3-TERMINAL POSITIVE REGULATORS Typical Application Circuit Fixed Output regulator INPUT C1* 0.33uF OUT IN OUTPUT AP78L12 GND C2 0.1uF ★：Required if the regulator is located more than 3" from the power supply filter. Function Description Introduction The AP78L12 fixed-mode 12V output voltage regulator is a three terminal device. The AP78L12 fixed voltage regulator series has built-in thermal overload protection which prevents the device from being damaged due to excessive junction temperature. The regulators also contain internal short-circuit protection which limits the maximum output current, and safe-area protection for the pass transistor which reduces the short-circuit current as the voltage across the pass transistor is increased. AP78L12 Rev. 1 6 of 9 www.diodes.com APRIL 2007 © Diodes Incorporated AP78L12 12.0V OUTPUT 3-TERMINAL POSITIVE REGULATORS Marking Information (1) TO92-3L (Top View) AP78L12 Part Number Y WW X X L:Lead Free Package 1 2 Internal code Xth Week: 01~52 Year: "1"=2001 "2"=2002 3 TO92-3L (2) SOP-8L (Top View) 8 5 Logo Part Number AP78L12 G : Green Package YY WW X X 4 ~ 1 Internal code Xth week: 01~52 Year: "01" =2001 "02" =2002 SOP-8L AP78L12 Rev. 1 Device Package Identification Code AP78L12S SOP8 AP78L12 7 of 9 www.diodes.com APRIL 2007 © Diodes Incorporated AP78L12 12.0V OUTPUT 3-TERMINAL POSITIVE REGULATORS Package Information (unit: mm) (1) Package Type: TO92-3L TO92-3L for Ammo pack AP78L12 Rev. 1 8 of 9 www.diodes.com APRIL 2007 © Diodes Incorporated AP78L12 12.0V OUTPUT 3-TERMINAL POSITIVE REGULATORS Package Information (Continued) 0.254 0.08/0.25 5.79/6.20 3.70/4.10 (2) Package Type: SOP-8L Gauge Plane Seating Plane 0.38/1.27 Detail "A" 7°~9° 0.20typ 1.30/1.50 1.75max. 0.35max. 45° 0.3/0.5 1.27typ 7°~9° Detail "A" 3.70/4.10 4.80/5.30 IMPORTANT NOTICE Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. LIFE SUPPORT Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated. AP78L12 Rev. 1 9 of 9 www.diodes.com APRIL 2007 © Diodes Incorporated