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LP2988AIM-5.0 Datasheet(PDF) 4 Page - Texas Instruments |
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LP2988AIM-5.0 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 30 page LP2987, LP2988 SNVS004J – MARCH 1999 – REVISED APRIL 2013 www.ti.com ELECTRICAL CHARACTERISTICS (continued) Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the full operating temperature range. Unless otherwise specified: VIN = VO(NOM) + 1V, IL = 1 mA, COUT = 4.7 µF, CIN = 2.2 µF, VS/D = 2V. LM2987/8AI-X.X (1) LM2987/8I-X.X (1) Symbol Parameter Conditions Typical Units Min Max Min Max VIN–VO Dropout Voltage IL = 100 µA 2.0 2.0 1 (2) 3.5 3.5 IL = 75 mA 120 120 90 mV 170 170 IL = 200 mA 230 230 180 350 350 IGND Ground Pin Current IL = 100 µA 120 120 100 150 150 µA IL = 75 mA 800 800 500 1400 1400 IL = 200 mA 2.1 2.1 1 mA 3.7 3.7 VS/D < 0.3V 0.05 1.5 1.5 µA IO(PK) Peak Output Current VOUT ≥ VO(NOM) − 5% 400 250 250 mA IO(MAX) Short Circuit Current RL = 0 (Steady State) (3) 400 en LP2987 Output Noise BW = 300 Hz to Voltage (RMS) 50 kHz, VOUT = 3.3V 100 COUT = 10 µF µV(RMS) LP2988 Output Noise BW = 300 Hz to 50 kHz, Voltage (RMS) VOUT = 3.3V 20 COUT = 10 µF CBYPASS = .01 µF ΔVOUT/ΔVIN Ripple Rejection f = 1 kHz, COUT = 10 µF 65 dB CBYP = 0 (LP2988) ΔVOUT/ΔT Output Voltage (4) 20 ppm/°C Temperature Coefficient IDELAY Delay Pin Current Source 1.6 2.8 1.6 2.8 2.2 µA 1.4 3.0 1.4 3.0 SHUTDOWN INPUT VS/D S/D Input Voltage VH = O/P ON 1.4 1.6 1.6 V (5) VL = O/P OFF 0.55 0.18 0.18 IS/D S/D Input Current VS/D = 0 0 −1 −1 µA VS/D = 5V 5 15 15 (2) Dropout voltage is defined as the input to output differential at which the output voltage drops 100 mV below the value measured with a 1V differential. (3) See TYPICAL PERFORMANCE CHARACTERISTICS curves. (4) Temperature coefficient is defined as the maximum (worst-case) change divided by the total temperature range. (5) To prevent mis-operation, the Shutdown input must be driven by a signal that swings above VH and below VL with a slew rate not less than 40 mV/µs (see APPLICATION HINTS). 4 Submit Documentation Feedback Copyright © 1999–2013, Texas Instruments Incorporated Product Folder Links: LP2987 LP2988 |
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