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LM7812CT Datasheet(PDF) 4 Page - Texas Instruments |
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LM7812CT Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 28 page  LM340-N, LM78xx SNOSBT0I – FEBRUARY 2000 – REVISED MARCH 2013 www.ti.com LM340A Electrical Characteristics IOUT = 1A, 0°C ≤ TJ ≤ + 125°C (LM340A) unless otherwise specified (1) Output Voltage 5V 12V 15V Symbol Input Voltage (unless otherwise noted) 10V 19V 23V Units Parameter Conditions Min Typ Max Min Typ Max Min Typ Max VO Output TJ = 25°C 4.9 5 5.1 11.75 12 12.25 14.7 15 15.3 V Voltage PD ≤ 15W, 5 mA ≤ IO ≤ 1A 4.8 5.2 11.5 12.5 14.4 15.6 V VMIN ≤ VIN ≤ VMAX (7.5 ≤ VIN ≤ 20) (14.8 ≤ VIN ≤ 27) (17.9 ≤ VIN ≤ 30) V ΔVO Line IO = 500 mA 10 18 22 mV Regulation ΔVIN (7.5 ≤ VIN ≤ 20) (14.8 ≤ VIN ≤ 27) (17.9 ≤ VIN ≤ 30) V TJ = 25°C 3 10 4 18 4 22 mV ΔVIN (7.5 ≤ VIN ≤ 20) (14.5 ≤ VIN ≤ 27) (17.5 ≤ VIN ≤ 30) V TJ = 25°C 4 9 10 mV Over Temperature 12 30 30 mV ΔVIN (8 ≤ VIN ≤ 12) (16 ≤ VIN ≤ 22) (20 ≤ VIN ≤ 26) V ΔVO Load TJ = 5 mA ≤ IO ≤ 1.5A 10 25 12 32 12 35 mV Regulation 25°C 250 mA ≤ IO ≤ 15 19 21 mV 750 mA Over Temperature, 25 60 75 mV 5 mA ≤ IO ≤ 1A IQ Quiescent TJ = 25°C 6 6 6 mA Current Over Temperature 6.5 6.5 6.5 mA ΔIQ Quiescent 5 mA ≤ IO ≤ 1A 0.5 0.5 0.5 mA Current TJ = 25°C, IO = 1A 0.8 0.8 0.8 mA Change VMIN ≤ VIN ≤ VMAX (7.5 ≤ VIN ≤ 20) (14.8 ≤ VIN ≤ 27) (17.9 ≤ VIN ≤ 30) V IO = 500 mA 0.8 0.8 0.8 mA VMIN ≤ VIN ≤ VMAX (8 ≤ VIN ≤ 25) (15 ≤ VIN ≤ 30) (17.9 ≤ VIN ≤ 30) V VN Output Noise TA = 25°C, 10 Hz ≤ f ≤ 100 40 75 90 μV Voltage kHz Ripple TJ = 25°C, f = 120 Hz, IO = 68 80 61 72 60 70 dB Rejection 1A or f = 120 Hz, IO = 500 mA, 68 61 60 dB Over Temperature, VMIN ≤ VIN ≤ VMAX (8 ≤ VIN ≤ 18) (15 ≤ VIN ≤ 25) (18.5 ≤ VIN ≤ 28.5) V RO Dropout TJ = 25°C, IO = 1A 2.0 2.0 2.0 V Voltage Output f = 1 kHz 8 18 19 m Ω Resistance Short-Circuit TJ = 25°C 2.1 1.5 1.2 A Current Peak Output TJ = 25°C 2.4 2.4 2.4 A Current Average TC Min, TJ = 0°C, IO = 5 mA −0.6 −1.5 −1.8 mV/°C of VO VIN Input Voltage TJ = 25°C Required to 7.5 14.5 17.5 V Maintain Line Regulation (1) All characteristics are measured with a 0.22 μF capacitor from input to ground and a 0.1 μF capacitor from output to ground. All characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tw ≤ 10 ms, duty cycle ≤ 5%). Output voltage changes due to changes in internal temperature must be taken into account separately. 4 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM340-N LM78xx |
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