LM7812XJ3

CYStech Electronics Corp. 3-TERMINAL POSITIVE VOLTAGE REGULATOR Spec. No. : C525J3 Issued Date : 2003.04.02 Revised Date :2005.07.15 Page No. : 1/3 LM7812XJ3 Description The LM7812XJ3 series of three-terminal positive regulators are available in the TO-252 package. These regulators can provide local TO-252 on-card regulation, eliminating the distribution problems associated with single point regulation. Each employs internal current limiting, thermal shutdown and safe operating area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. LM7812XJ3 is characterized for operation from 0°C to +125°C, and if operating temperature is always high, please refer to the power dissipation curve. Absolute Maximum Ratings (Ta=25°C) • Input Voltage ....................................................................................................................... 35 V • Total Power Dissipation .................................................................................... Internally limited • Operating Temperature Range .......................................................................... 0 °C to +125 °C • Maximum Junction Temperature ..................................................................................... 125 °C • Storage Temperature Range .......................................................................... -55 °C to +150 °C • Lead Temperature (Soldering 10S).................................................................................. 230 °C Typical Application Schematic Diagram Input Vin 1 LM7812 3 Vout 3.4K 6.3V 10K 1K 200 200 0.3 2K C1 2 C2 30K Output VREF 26 1.9K 20pF 4K Note: C1 and C2 are required if regulator is located far from power supply filter and load, or oscillation may induced on the loop. 26 4K 1.2 12.1K 1K GND LM7812XJ3 CYStek Product Specification CYStech Electronics Corp. Electrical Characteristics Vin=19V, Io=500mA, 0°C≤Tj≤125°C (unless otherwise noted) Spec. No. : C525J3 Issued Date : 2003.04.02 Revised Date :2005.07.15 Page No. : 2/3 Symbol Vo ∆Vo ∆Vo IQ ∆IQ Vn RR VD Isc Ipk ∆Vo / ∆T Symbol Vo ∆Vo ∆Vo IQ ∆IQ Vn RR VD Isc Ipk ∆Vo / ∆T Parameter Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage Short Circuit Current Peak Output Current Average Tc of Vout Parameter Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage Short Circuit Current Peak Output Current Average Tc of Vout Conditions Tj=25°C 14.5V≤Vin≤27V Tj=25°C, 14.5V≤Vin≤30V Tj=25°C, 16V≤Vin≤22V 5mA≤Io≤1.5A 250mA≤Io≤750mA Io≤1A, Tj=25°C 5mA≤Io≤1A 14.5V≤Vin≤30V Ta=25°C, 10Hz≤f≤100KHz 15V≤Vin≤25V, f=120Hz Tj=25°C, Io=1A Tj=25°C Tj=25°C 0°C≤Tj≤+125°C, Io=5mA Conditions Tj=25°C 14.5V≤Vin≤27V Tj=25°C, 14.5V≤Vin≤30V Tj=25°C, 16V≤Vin≤22V 5mA≤Io≤1.5A 250mA≤Io≤750mA Io≤1A, Tj=25°C 5mA≤Io≤1A 14.5V≤Vin≤30V Ta=25°C, 10Hz≤f≤100KHz 15V≤Vin≤25V, f=120Hz Tj=25°C, Io=1A Tj=25°C Tj=25°C 0°C≤Tj≤+125°C, Io=5mA LM7812A Units Min Typ Max 11.64 12 12.36 V 11.64 12 12.36 20 120 mV 16 60 120 mV 60 5.5 8 mA 0.5 mA 1.3 200 µV 68 dB 2 V 1.5 A 1.7 A -0.8 mV/°C LM7812B Min Typ Max 11.5 12 12.5 11.4 12 12.6 44 240 16 120 45 240 16 120 5.5 8 0.5 1.3 300 62 73 2.5 1.5 1.7 -0.8 Units V mV mV mA mA µV dB V A A mV/°C LM7812XJ3 CYStek Product Specification CYStech Electronics Corp. TO-252 Dimension A C Spec. No. : C525J3 Issued Date : 2003.04.02 Revised Date :2005.07.15 Page No. : 3/3 Marking: B L F G D 7812 3 H E K 2 I 1 J Style: Pin 1.Vin 2.Ground 3.Vout 3-Lead TO-252 Plastic Surface Mount Package CYStek Package Code: J3 *: Typical DIM A B C D E F Inches Min. Max. 0.0177 0.0217 0.0650 0.0768 0.0354 0.0591 0.0177 0.0236 0.2520 0.2677 0.2125 0.2283 Millimeters Min. Max. 0.45 0.55 1.65 1.95 0.90 1.50 0.45 0.60 6.40 6.80 5.40 5.80 DIM G H I J K L Inches Min. Max. 0.0866 0.1102 *0.0906 0.0354 0.0315 0.2047 0.2165 0.0551 0.0630 Millimeters Min. Max. 2.20 2.80 *2.30 0.90 0.80 5.20 5.50 1.40 1.60 Notes: 1.Controlling dimension: millimeters. 2.Maximum lead thickness includes lead finish thickness, and minimum lead thickness is the minimum thickness of base material. 3.If there is any question with packing specification or packing method, please contact your local CYStek sales office. Material: • Lead: 42 Alloy; solder plating • Mold Compound: Epoxy resin family, flammability solid burning class: UL94V-0 Important Notice: • All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of CYStek. • CYStek reserves the right to make changes to its products without notice. • CYStek semiconductor products are not warranted to be suitable for use in Life-Support Applications, or systems. • CYStek assumes no liability for any consequence of customer product design, infringement of patents, or application assistance. LM7812XJ3 CYStek Product Specification