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LP2981-50DBVTG4 Datasheet(PDF) 5 Page - Texas Instruments |
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LP2981-50DBVTG4 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 22 page 5 LP2981-28, LP2981-29, LP2981-30 LP2981-33, LP2981-50, LP2981A-28 LP2981A-29, LP2981A-30, LP2981A-33, LP2981A-50 www.ti.com SLVS521G – JULY 2004 – REVISED AUGUST 2016 Product Folder Links: LP2981-28 LP2981-29 LP2981-30 LP2981-33 LP2981-50 LP2981A-28 LP2981A-29 LP2981A- 30 LP2981A-33 LP2981A-50 Submit Documentation Feedback Copyright © 2004–2016, Texas Instruments Incorporated Electrical Characteristics: LP2981-xx (continued) 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) PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT (2) The ON/OFF input must be actively terminated. Connect to VIN if this function is not used (see Application and Implementation). IGND Ground pin current IL = 0 25°C 65 95 µA –40°C to 125°C 125 IL = 1 mA 25°C 80 110 –40°C to 125°C 170 IL = 25 mA 25°C 200 300 –40°C to 125°C 550 IL = 100 mA 25°C 600 1000 –40°C to 125°C 1700 VON/OFF < 0.3 V (OFF) 25°C 0.01 0.8 VON/OFF < 0.15 V (OFF) –40°C to 105°C 0.05 2 –40°C to 125°C 5 VON/OFF ON/OFF input voltage(2) High = O/P ON 25°C 1.4 V –40°C to 125°C 1.6 Low = O/P OFF 25°C 0.5 –40°C to 125°C 0.15 ION/OFF ON/OFF input current VON/OFF = 0 25°C 0.01 µA –40°C to 125°C –1 VON/OFF = 5 V 25°C 5 –40°C to 125°C 15 IOUT(PK) Peak output current VOUT ≥ VOUT(NOM) – 5% 25°C 400 mA Vn Output noise voltage (RMS) BW = 300 Hz to 50 kHz, COUT = 10 µF 25°C 160 µV ΔVOUT/ΔVIN Ripple rejection f = 1 kHz, COUT = 10 µF 25°C 63 dB IOUT(MAX) Short-circuit current RL = 0 (steady state) 25°C 150 mA (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. 6.6 Electrical Characteristics: LP2981A-xx 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) PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT ΔVOUT Output voltage tolerance IL = 1 mA 25°C –0.75 0.75 %VNOM IL = 1 mA to 100 mA 25°C –1 1 –40°C to 125°C –2.5 2.5 ΔVOUT/ΔVIN Output voltage line regulation VIN = (VOUT(NOM) + 1 V) to 16 V 25°C 0.007 0.014 %/V –40°C to 125°C 0.032 VIN – VOUT Dropout voltage(1) IL = 0 25°C 1 3 mV –40°C to 125°C 5 IL = 1 mA 25°C 7 10 –40°C to 125°C 15 IL = 25 mA 25°C 70 100 –40°C to 125°C 150 IL = 100 mA 25°C 200 250 –40°C to 125°C 375 |
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