78L18A Schematic ( PDF Datasheet ) - Fairchild Semiconductor

Teilenummer	78L18A
Beschreibung	3-Terminal 0.1A Positive Voltage Regulator
Hersteller	Fairchild Semiconductor
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Gesamt 14 Seiten www.fairchildsemi.com MC78LXXA/LM78LXXA/MC78L05AA 3-Terminal 0.1A Positive Voltage Regulator Features • Maximum Output Current of 100mA • Output Voltage of 5V, 6V, 8V, 12V, 15V, 18V and 24V • Thermal Overload Protection • Short Circuit Current Limiting • Output Voltage Offered in ±5% Tolerance Description The MC78LXXA/LM78LXXA/MC78L05AA series of fixed voltage monolithic integrated circuit voltage regulators are suitable for application that required supply current up to 100mA. TO-92 SOT-89 GND 1 23 123 1. Output 2. GND 3. Input 8-SOP 81 1. Output 2. GND 3. GND 4. NC 5. NC 6. GND 7. GND 8. Input Internal Block Diagram InpuVt I 3 I REFERENCE VOLTAGE + - GND 2 THERMAL SHUTDOWN CIRCUIT SHORT CIRCUIT PROTECTION ©2010 Fairchild Semiconductor Corporation RSC VO0 utput 1 Rev. 1.0.6 MC78LXXA/LM78LXXA/MC78L05AA Electrical Characteristics(MC78L15A) (Continued) (VI = 23V, IO = 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33 μF, CO = 0.1μF, unless otherwise specified. (Note1)) Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage VO TJ = 25°C 14.4 15 15.6 V Line Regulation (Note1) ΔVO TJ = 25°C 17.5V ≤ VI ≤ 30V 20V ≤ VI ≤ 30V - 25 300 mV - 20 250 mV Load Regulation (Note1) ΔVO TJ = 25°C 1mA ≤ IO ≤ 100mA - 25 150 mV 1mA ≤ IO ≤ 40mA - 12 75 mV Output Voltage 17.5V ≤ VI ≤ 30V 1mA ≤ IO ≤ 40mA 14.25 - 15.75 V VO 17.5V ≤ VI ≤ VMAX (Note2) 1mA ≤ IO ≤ 70mA 14.25 - 15.75 V Quiescent Current IQ TJ = 25°C - 2.1 6.0 mA Quiescent Current Change With Line ΔIQ With Load ΔIQ 20V ≤ VI ≤ 30V 1mA ≤ IO ≤ 40mA - - 1.5 mA - - 0.1 mA Output Noise Voltage VN TA = 25°C, 10Hz ≤ f ≤ 100kHz - 90 - μV/Vo Temperature Coefficient of VO ΔVO/ΔT IO = 5mA - -1.3 - mV/°C Ripple Rejection RR f = 120Hz, 18.5V≤VI ≤28.5V, TJ = 25°C 34 60 - dB Dropout Voltage VD TJ = 25°C - 1.7 - V Note: 1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length of the package. The data above represent pulse test conditions with junction temperature as indicated at the initiation of tests. 2. Power dissipation PD ≤ 0.75W. 6 6 Page MC78LXXA/LM78LXXA/MC78L05AA Mechanical Dimensions (Continued) Package 8-SOP 1.55 ±0.20 0.061 ±0.008 Dimensions in millimeters MIN 0.1~0.25 0.004~0.001 #1 #8 #4 #5 6.00 ±0.30 0.236 ±0.012 3.95 ±0.20 0.156 ±0.008 1.80 0.071 MAX 0.50 ±0.20 0.020 ±0.008 5.72 0.225 12 12 Page
Seiten	Gesamt 14 Seiten
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