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L7812CV 데이터시트(PDF) 11 Page - STMicroelectronics |
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L7812CV 데이터시트(HTML) 11 Page - STMicroelectronics |
11 / 52 page L78xx - L78xxC Electrical characteristics 11/52 5 Electrical characteristics Table 4. Electrical characteristics of L7805 (refer to the test circuits, TJ = -55 to 150°C, VI = 10 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 4.8 5 5.2 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 8 to 20 V 4.65 5 5.35 V ΔVO(1) 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. Line regulation VI = 7 to 25 V, TJ = 25°C 3 50 mV VI = 8 to 12 V, TJ = 25°C 1 25 ΔVO(1) Load regulation IO = 5 mA to 1.5 A, TJ = 25°C 100 mV IO = 250 to 750 mA, TJ = 25°C 25 Id Quiescent current TJ = 25°C 6 mA ΔId Quiescent current change IO = 5 mA to 1 A 0.5 mA VI = 8 to 25 V 0.8 ΔVO/ΔT Output voltage drift IO = 5 mA 0.6 mV/°C eN Output noise voltage B =10 Hz to 100 KHz, TJ = 25°C 40 µV/VO SVR Supply voltage rejection VI = 8 to 18 V, f = 120 Hz 68 dB Vd Dropout voltage IO = 1 A, TJ = 25°C 2 2.5 V RO Output resistance f = 1 KHz 17 m Ω Isc Short circuit current VI = 35 V, TJ = 25°C 0.75 1.2 A Iscp Short circuit peak current TJ = 25°C 1.3 2.2 3.3 A |
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