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LM340 数据表(PDF) 7 Page - Texas Instruments |
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LM340 数据表(HTML) 7 Page - Texas Instruments |
7 / 33 page 7 LM340, LM340A, LM7805, LM7812, LM7815 www.ti.com SNOSBT0K – FEBRUARY 2000 – REVISED JULY 2016 Product Folder Links: LM340 LM340A LM7805 LM7812 LM7815 Submit Documentation Feedback Copyright © 2000–2016, Texas Instruments Incorporated (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. 6.7 LM340 / LM7812 Electrical Characteristics, VO = 12 V, VI = 19 V 0°C ≤ TJ ≤ 125°C unless otherwise specified (1) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VO Output voltage TJ = 25°C, 5 mA ≤ IO ≤ 1 A 11.5 12 12.5 V PD ≤ 15 W, 5 mA ≤ IO ≤ 1 A 14.5 V ≤ VIN ≤ 27 V 11.4 12.6 V ΔVO Line regulation IO = 500 mA TJ = 25°C 14.5V ≤ VIN ≤ 30V 4 120 mV Over temperature 15V ≤ VIN ≤ 27V 120 mV IO ≤ 1 A TJ = 25°C 14.6V ≤ VIN ≤ 27V 120 mV Over temperature 16V ≤ VIN ≤ 22V 60 mV ΔVO Load regulation TJ = 25°C 5 mA ≤ IO ≤ 1.5 A 12 120 mV 250 mA ≤ IO ≤ 750 mA 60 mV Over temperature, 5 mA ≤ IO ≤ 1 A 120 mV IQ Quiescent current IO ≤ 1 A TJ = 25°C 8 mA Over temperature 8.5 mA ΔIQ Quiescent current change 5 mA ≤ IO ≤ 1 A 0.5 mA TJ = 25°C, IO ≤ 1 A 14.8 V ≤ VIN ≤ 27 V 1 mA Over temperature, IO ≤ 500 mA 14.5 V ≤ VIN ≤ 30 V 1 mA VN Output noise voltage TA = 25°C, 10 Hz ≤ f ≤ 100 kHz 75 μV Ripple rejection f = 120 Hz 15 V ≤ VIN ≤ 25 V TJ = 25°C, IO ≤ 1 A 55 72 dB Over temperature, IO ≤ 500 mA, 55 dB RO Dropout voltage TJ = 25°C, IO = 1 A 2 V Output resistance f = 1 kHz 18 mΩ Short-circuit current TJ = 25°C 1.5 A Peak output current TJ = 25°C 2.4 A Average TC of VOUT Over temperature, IO = 5 mA −1.5 mV/°C VIN Input voltage required to maintain line regulation TJ = 25°C, IO ≤ 1 A 14.6 V |
类似零件编号 - LM340 |
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类似说明 - LM340 |
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