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LP2954IM Datasheet(PDF) 3 Page - Texas Instruments |
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LP2954IM Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 24 page  LP2954, LP2954A www.ti.com SNVS096D – JUNE 1999 – REVISED MARCH 2013 Electrical Characteristics Limits in standard typeface are for TJ = 25°C, bold typeface applies over the −40°C to +125°C temperature range. Limits are specified by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless otherwise noted: VIN = 6V, IL = 1 mA, CL = 2.2 μF. 2954AI 2954I Symbol Parameter Conditions Typical Units Min Max Min Max VO 5.0 4.975 5.025 4.950 5.050 Output Voltage(1) 4.940 5.060 4.900 5.100 V 1 mA ≤ IL ≤ 250 mA 5.0 4.930 5.070 4.880 5.120 Output Voltage Temp. See(2) 20 100 150 ppm/°C Coefficient(1) VIN = 6V to 30V 0.03 0.10 0.20 Line Regulation % 0.20 0.40 IL = 1 to 250 mA 0.16 0.20 Load Regulation % IL = 0.1 to 1 mA (3) 0.04 0.20 0.30 VIN–VO IL = 1 mA 60 100 100 150 150 IL = 50 mA 240 300 300 420 420 Dropout Voltage(4) mV IL = 100 mA 310 400 400 520 520 IL = 250 mA 470 600 600 800 800 IGND IL = 1 mA 90 150 150 μA 180 180 IL = 50 mA 1.1 2 2 2.5 2.5 Ground Pin Current(5) IL = 100 mA 4.5 6 6 mA 8 8 IL = 250 mA 21 28 28 33 33 IGND VIN = 4.5V 170 170 Ground Pin Current at μA Dropout(5) 120 210 210 ILIMIT VOUT = 0V 380 500 500 Current Limit mA 530 530 Thermal Regulation See(6) 0.05 0.2 0.2 %/W en CL = 2.2 μF 400 Output Noise Voltage (10 Hz to 100 kHz) CL = 33 μF 260 μV RMS IL = 100 mA CL=33μF (7) 80 (1) When used in dual-supply systems where the regulator load is returned to a negative supply, the output voltage must be diode-clamped to ground. (2) Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. (3) Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested separately for load regulation in the load ranges 0.1 mA–1 mA and 1 mA–250 mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification. (4) 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. (5) Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current plus the ground pin current. (6) Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied, excluding load or line regulation effects. Specifications are for 200 mA load pulse at VIN = 20V (3W pulse) for T = 10 ms. (7) Connect a 0.1 μF capacitor from the output to the feedback pin. Copyright © 1999–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LP2954 LP2954A |
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