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LP2981-50DBVR Datasheet(PDF) 5 Page - Texas Instruments |
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LP2981-50DBVR Datasheet(HTML) 5 Page - Texas Instruments |
5 / 17 page Electrical Characteristics LP2981 www.ti.com ......................................................................................................................................................... SLVS521F – JULY 2004 – REVISED AUGUST 2008 at specified free-air temperature range, VIN = VOUT(NOM) + 1 V, VON/OFF = 2 V, CIN = 1 µF, IL = 1 mA, COUT = 4.7 µF (unless otherwise noted) LP2981A-xx LP2981-xx PARAMETER TEST CONDITIONS TA UNIT MIN TYP MAX MIN TYP MAX IL = 1 mA 25°C –0.75 0.75 –1.25 1.25 Output voltage ΔVOUT 25°C –1 1 –2 2 %VNOM tolerance IL = 1 mA to 100 mA –40°C to 125°C –2.5 2.5 –3.5 3.5 25°C 0.007 0.014 0.007 0.014 Output voltage VIN = (VOUT(NOM) + 1 V) to ΔVOUT/ΔVIN %/V line regulation 16 V –40°C to 125°C 0.032 0.032 25°C 1 3 1 3 IL = 0 –40°C to 125°C 5 5 25°C 7 10 7 10 IL = 1 mA –40°C to 125°C 15 15 Dropout VIN – VOUT mV voltage(1) 25°C 70 100 70 100 IL = 25 mA –40°C to 125°C 150 150 25°C 200 250 200 250 IL = 100 mA –40°C to 125°C 375 375 25°C 65 95 65 95 IL = 0 –40°C to 125°C 125 125 25°C 80 110 80 110 IL = 1 mA –40°C to 125°C 170 170 25°C 200 300 200 300 IL = 25 mA Ground pin IGND –40°C to 125°C 550 550 µA current 25°C 600 1000 600 1000 IL = 100 mA –40°C to 125°C 1700 1700 VON/OFF < 0.3 V (OFF) 25°C 0.01 0.8 0.01 0.8 –40°C to 105°C 0.05 2 0.05 2 VON/OFF < 0.15 V (OFF) –40°C to 125°C 5 5 25°C 1.4 1.4 High = O/P ON –40°C to 125°C 1.6 1.6 ON/OFF input VON/OFF V voltage(2) 25°C 0.5 0.5 Low = O/P OFF –40°C to 125°C 0.15 0.15 25°C 0.01 0.01 VON/OFF = 0 –40°C to 125°C –1 –1 ON/OFF input ION/OFF µA current 25°C 5 5 VON/OFF = 5 V –40°C to 125°C 15 15 Peak output IOUT(PK) VOUT ≥ VOUT(NOM) – 5% 25°C 150 400 400 mA current Output noise BW = 300 Hz to 50 kHz, Vn 25°C 160 160 µV voltage (RMS) COUT = 10 µF ΔVOUT/ΔVIN Ripple rejection f = 1 kHz, COUT = 10 µF 25°C 63 63 dB Short-circuit IOUT(MAX) RL = 0 (steady state) 25°C 150 150 mA current (1) Dropout voltage is defined as the input-to-output differential at which the output voltage drops 100 mV below the value measured with a 1-V differential. This dropout specification does not apply to the 1.8-V option, as the minimum VIN = 2.2 V must be observed for proper biasing of LDO control circuitry. (2) The ON/OFF input must be actively terminated. Connect to VIN if this function is not used (see Application Information). Copyright © 2004–2008, Texas Instruments Incorporated Submit Documentation Feedback 5 |
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