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L7908C Datenblatt(PDF) 8 Page - STMicroelectronics |
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L7908C Datenblatt(HTML) 8 Page - STMicroelectronics |
8 / 21 page Electrical characteristics L79xxC 8/21 Table 5. Electrical characteristics of L7908C (refer to the test circuits, TJ = 0 to 125 °C, VI = -14 V, IO = 500 mA, CI = 2.2 µF, CO = 1 µF unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C -7.7 -8 -8.3 V VO Output voltage IO = -5 mA to -1 A, PO ≤ 15 W VI = -11.5 to -23 V -7.6 -8 -8.4 V ΔVO(1) Line regulation VI = -10.5 to -25 V, TJ = 25°C 160 mV VI = -11 to -17 V, TJ = 25°C 80 ΔVO(1) Load regulation IO = 5 mA to 1.5 A, TJ = 25°C 160 mV IO = 250 to 750 mA, TJ = 25°C 80 Id Quiescent current TJ = 25°C 3 mA ΔId Quiescent current change IO = 5 mA to 1 A 0.5 mA VI = -11.5 to -25 V 1 ΔVO/ΔT Output voltage drift IO = 5 mA -0.6 mV/°C eN Output noise voltage B = 10Hz to 100kHz, TJ = 25°C 175 µV SVR Supply voltage rejection ΔVI = 10 V, f = 120Hz 54 60 dB Vd Dropout voltage IO = 1 A, TJ = 25°C, ΔVO = 100 mV 1.1 V Isc Short circuit current 1.5 A 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. Table 6. Electrical characteristics of L7912C (refer to the test circuits, TJ = 0 to 125 °C, VI = -19 V, IO = 500 mA, CI = 2.2 µF, CO = 1 µF unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C -11.5 -12 -12.5 V VO Output voltage IO = -5 mA to -1 A, PO ≤ 15 W VI = -15.5 to -27 V -11.4 -12 -12.6 V ΔVO(1) Line regulation VI = -14.5 to -30 V, TJ = 25°C 240 mV VI = -16 to -22 V, TJ = 25°C 120 ΔVO(1) Load regulation IO = 5 mA to 1.5 A, TJ = 25°C 240 mV IO = 250 to 750 mA, TJ = 25°C 120 Id Quiescent current TJ = 25°C 3 mA ΔId Quiescent current change IO = 5 mA to 1 A 0.5 mA VI = -15 to -30 V 1 ΔVO/ΔT Output voltage drift IO = 5 mA -0.8 mV/°C eN Output noise voltage B = 10Hz to 100kHz, TJ = 25°C 200 µV SVR Supply voltage rejection ΔVI = 10 V, f = 120Hz 54 60 dB Vd Dropout voltage IO = 1 A, TJ = 25°C, ΔVO = 100 mV 1.1 V Isc Short circuit current 1.5 A 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. |
Ähnliche Teilenummer - L7908C |
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Ähnliche Beschreibung - L7908C |
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