データシートサーチシステム |
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LM7905 データシート(PDF) 3 Page - Texas Instruments |
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LM7905 データシート(HTML) 3 Page - Texas Instruments |
3 / 13 page LM7905, LM7912, LM7915 www.ti.com SNOSBQ7C – JUNE 1999 – REVISED MAY 2013 ELECTRICAL CHARACTERISTICS Conditions unless otherwise noted: IOUT = 500mA, CIN = 2.2μF, COUT = 1μF, 0°C ≤ TJ ≤ +125°C, Power Dissipation ≤ 1.5W. Part Number LM7912C LM7915C Units Output Voltage −12V −15V Input Voltage (unless otherwise specified) −19V −23V Symbol Parameter Conditions Min Typ Max Min Typ Max VO Output Voltage TJ = 25°C −11.5 −12.0 −12.5 −14.4 −15.0 −15.6 V 5mA ≤ IOUT ≤ 1A, −11.4 −12.6 −14.25 −15.75 V P ≤ 15W ( −27 ≤ VIN ≤ −14.5) ( −30 ≤ VIN ≤ −17.5) V ΔVO Line Regulation TJ = 25°C, (1) 5 80 5 100 mV ( −30 ≤ VIN ≤ −14.5) ( −30 ≤ VIN≤ −17.5) V 3 30 3 50 mV ( −22 ≤ VIN ≤ −16) ( −26 ≤ VIN ≤−20) V ΔVO Load Regulation TJ = 25°C, (1) 5mA ≤ IOUT ≤ 1.5A 15 200 15 200 mV 250mA ≤ IOUT ≤ 750mA 5 75 5 75 mV IQ Quiescent Current TJ = 25°C 1.5 3 1.5 3 mA ΔIQ Quiescent Current With Line 0.5 0.5 mA Change ( −30 ≤ VIN ≤ −14.5) ( −30 ≤VIN ≤ −17.5) V With Load, 5mA ≤ IOUT ≤ 1A 0.5 0.5 mA Vn Output Noise Voltage TA = 25°C, 10Hz ≤ f ≤ 100Hz 300 375 μV Ripple Rejection f = 120 Hz 54 70 54 70 dB ( −25 ≤ VIN ≤ −15) ( −30 ≤ VIN≤ −17.5) V Dropout Voltage TJ = 25°C, IOUT = 1A 1.1 1.1 V IOMAX Peak Output Current TJ = 25°C 2.2 2.2 A Average Temperature IOUT = 5mA, −0.8 −1.0 mV/°C Coefficient of 0 C ≤ TJ ≤ 100°C Output Voltage (1) Regulation is measured at a constant junction temperature by pulse testing with a low duty cycle. Changes in output voltage due to heating effects must be taken into account. Copyright © 1999–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM7905 LM7912 LM7915 |
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