7800 – THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS

Part Number : 7800

Function : THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS

Manufactures : ON Semiconductor

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Description :

Order this document by MC7800/D MC7800, MC7800A, LM340, Three-Terminal Positive Voltage Regulators These voltage regulators are monolithic integrated circuits designed as fixed–voltage regulators for a wide variety of applications including local, on–card regulation. These regulators employ internal current limiting, thermal shutdown, and safe–area compensation. With adequate heatsinking they can deliver output currents in excess of 1.0 A. Although designed primarily as a fixed voltage regulator, these devices can be used with external components to obtain adjustable voltages and currents. LM340A Series THREE–TERMINAL POSITIVE FIXED VOLTAGE REGULATORS SEMICONDUCTOR TECHNICAL DATA Output Current in Excess of 1.0 A No External Components Required Internal Thermal Overload Protection Internal Short Circuit Current Limiting Output Transistor Safe–Area Compensation Output Voltage Offered in 2% and 4% Tolerance Available in Surface Mount D2PAK and Standard 3–Lead Transistor Packages Previous Commercial Temperature Range has been Extended to a Junction Temperature Range of –40°C to +125°C T SUFFIX PLASTIC PACKAGE CASE 221A Heatsink surface connected to Pin 2. 1 2 3 Pin 1. Input 2. Ground 3. Output DEVICE TYPE/NOMINAL OUTPUT VOLTAGE MC7805AC LM340AT–5 MC7805C LM340T–5 MC7806AC MC7806C MC7808AC MC7808C MC7809C MC7812AC LM340AT–12 60V 6.0 80V 8.0 9.0 V 12 V 50V 5.0 MC7812C LM340T–12 MC7815AC LM340AT–15 MC7815C LM340T–15 MC7818AC MC7818C MC7824AC MC7824C 18 V 24 V 15 V 12 V D2T SUFFIX PLASTIC PACKAGE CASE 936 (D2PAK) 1 2 3 Heatsink surface (shown as terminal 4 in case outline drawing) is connected to Pin 2. STANDARD APPLICATION Input Cin* 0.33 µF MC78XX Output CO** ORDERING INFORMATION Device MC78XXACT Insertion Mount LM340AT–XX MC78XXACD2T MC78XXCT LM340T–XX MC78XXCD2T XX indicates nominal voltage. 4% Surface Mount 2% TJ = –40 40° to +125 125°C Surface Mount Insertion Mount Output Voltage Tolerance Operating Temperature Range Package 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. XX, These two digits of the type number indicate nominal 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. Values of less than 0.1 µF could cause instability. © Motorola, Inc. 1997 Rev 5 MOTOROLA ANALOG IC DEVICE DATA 1 MC7800, MC7800A, LM340, LM340A Series MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.) Rating Input Voltage (5.0 – 18 V) Input Voltage (24 V) Power Dissipation Case 221A TA = 25°C Thermal Resistance, Junction–to–Ambient Thermal Resistance, Junction–to–Case Case 936 (D2PAK) TA = 25°C Thermal Resistance, Junction–to–Ambient Thermal Resistance, Junction–to–Case Storage Junction Te […]

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7800 Datasheet


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