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L78SXX Datasheet(PDF) 9 Page - STMicroelectronics |
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L78SXX Datasheet(HTML) 9 Page - STMicroelectronics |
9 / 31 page L78Sxx - L78SxxC Electrical characteristics 9/31 Table 7. Electrical characteristics of L78S10 (refer to the test circuits, TJ = 25 °C, VI = 15 V, IO = 500 mA, unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit VO Output voltage 9.5 10 10.5 V VO Output voltage IO = 1A, VI = 12.5V 9.4 10 10.6 V ΔVO Line regulation VI = 12.5 to 30V 200 mV VI = 14 to 22V 100 ΔVO Load regulation IO = 20 mA to 2A 150 mV IQ Quiescent current 8 mA ΔIQ Quiescent current change IO = 20mA to 1A 0.5 mA VI = 12.5 to 30 V, IO = 20mA 1 ΔVO/ΔT Output voltage drift IO = 5mA, TJ = -55°C to 150°C -1 mV/°C eN Output noise voltage B =10Hz to 100kHz 65 µV SVR Supply voltage rejection f = 120Hz 53 dB VI Operating input voltage IO ≤1.5A 13 V RO Output resistance f = 1 kHz 17 m Ω Isc Short circuit current VI = 27V 500 mA Iscp Short circuit peak current 3 A Table 8. Electrical characteristics of L78S12 (refer to the test circuits, TJ = 25 °C, VI = 19 V, IO = 500 mA, unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit VO Output voltage 11.5 12 12.5 V VO Output voltage IO = 1A, VI = 14.5V 11.4 12 12.6 V ΔVO Line regulation VI = 14.5 to 30V 240 mV VI = 16 to 22V 120 ΔVO Load regulation IO = 20 mA to 2A 160 mV IQ Quiescent current 8 mA ΔIQ Quiescent current change IO = 20mA to 1A 0.5 mA VI = 14.5 to 30 V, IO = 20mA 1 ΔVO/ΔT Output voltage drift IO = 5mA, TJ = -55°C to 150°C -1 mV/°C eN Output noise voltage B =10Hz to 100kHz 75 µV SVR Supply voltage rejection f = 120Hz 53 dB VI Operating input voltage IO ≤1.5A 15 V RO Output resistance f = 1 kHz 18 m Ω Isc Short circuit current VI = 27V 500 mA Iscp Short circuit peak current 3 A |
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