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LP2985AIM5-1.8 Datasheet(PDF) 4 Page - Texas Instruments |
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LP2985AIM5-1.8 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 22 page LP2985LV-N SNOS510P – NOVEMBER 1999 – REVISED APRIL 2013 www.ti.com ELECTRICAL CHARACTERISTICS (1) 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, CIN = 1 µF, COUT = 4.7 µF, VON/OFF = 2V. LP2985AI-X.X(2) LP2985I-X.X(2) Symbol Parameter Conditions Typ Units Min Max Min Max IL = 1 mA −1.0 1.0 −1.5 1.5 1 mA ≤ IL ≤ 50 mA −1.5 1.5 −2.5 2.5 Output Voltage ΔVO −2.5 2.5 −3.5 3.5 %VNOM Tolerance 1 mA ≤ IL ≤ 150 mA −2.5 2.5 −3.0 3.0 −3.5 3.5 −4.0 4.0 0.007 0.014 0.014 Output Voltage VO(NOM)+1V ≤ VIN ≤ 16V %/V 0.032 0.032 Line Regulation 95 95 IL = 0 65 125 125 110 110 IL = 1 mA 75 170 170 220 220 IL = 10 mA 120 400 400 IGND Ground Pin Current µA 500 500 IL = 50 mA 300 900 900 1200 1200 IL = 150 mA 825 2000 2000 VON/OFF < 0.3V 0.01 0.8 0.8 VON/OFF < 0.15V 0.05 2 2 Minimum Input Voltage VIN(min) Required To maintain Output 2.05 2.20 2.20 V Regulation(3) 150 150 IL = 50mA 120 250 250 VIN - VOUT Dropout Voltage(3) mV 350 350 IL = 150mA 280 600 600 High = O/P ON 1.4 1.6 1.6 VON/OFF ON/OFF Input Voltage(4) V Low = O/P OFF 0.55 0.15 0.15 VON/OFF = 0 0.01 −2 −2 ION/OFF ON/OFF Input Current µA VON/OFF = 5V 5 15 15 BW = 300 Hz to 50 kHz, COUT = 10 µF en Output Noise Voltage (RMS) 30 µV CBYPASS = 10 nF VOUT = 1.8V f = 1 kHz, CBYPASS = 10 nF Ripple Rejection 45 dB COUT = 10 µF IO(SC) Short Circuit Current RL = 0 (Steady State) (5) 400 mA IO(PK) Peak Output Current VOUT ≥ Vo(NOM) −5% 350 mA (1) Exposing the DSBGA device to direct sunlight will cause misoperation. See APPLICATION HINTS for additional information. (2) Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical Quality Control (SQC) methods. The limits are used to calculate Average Outgoing Quality Level (AOQL). (3) VIN must be the greater of 2.2V or VOUT(NOM) + Dropout Voltage to maintain output regulation. Dropout Voltage is defined as the input to output differential at which the output voltage drops 2% below ther value measured with a 1V differential. (4) The ON/OFF input must be properly driven to prevent possible misoperation. For details, refer to APPLICATION HINTS. (5) The LP2985LV-N has foldback current limiting which allows a high peak current when VOUT > 0.5V, and then reduces the maximum output current as VOUT is forced to ground (see TYPICAL PERFORMANCE CHARACTERISTICS curves). 4 Submit Documentation Feedback Copyright © 1999–2013, Texas Instruments Incorporated Product Folder Links: LP2985LV-N |
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