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LP2951-33QDRGRQ1 Datasheet(PDF) 4 Page - Texas Instruments |
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LP2951-33QDRGRQ1 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 30 page LP2951-33-Q1, LP2951-50-Q1 SLVSAW6E – JUNE 2011 – REVISED NOVEMBER 2014 www.ti.com 6.3 Recommended Operating Conditions MIN NOM MAX UNIT VIN Supply input voltage See (1) 30 V TA Operating temperature –40 125 °C (1) Minimum VIN is the greater of: (a) 2 V (25°C), 2.3 V (over temperature), or (b) VOUT(MAX) + Dropout (Max) at rated IL 6.4 Thermal Information LP2951-30-Q1, LP2951-50-Q1 LP2951-50-Q1 THERMAL METRIC UNIT DRG D 8 PINS 8 PINS RθJA Junction-to-ambient thermal resistance 55.7 121.6 RθJC(top) Junction-to-case (top) thermal resistance 66.5 69.8 RθJB Junction-to-board thermal resistance 30.2 61.9 °C/W ψJT Junction-to-top characterization parameter 1.1 22.2 ψJB Junction-to-board characterization parameter 30.4 61.4 RθJC(bot) Junction-to-case (bottom) thermal resistance 10 n/a 6.5 Electrical Characteristics VIN = VOUT (nominal) + 1 V, IL = 100 μA, CL = 1 μF (5-V versions) or CL = 2.2 μF (3.3-V versions), 8-pin version: FEEDBACK tied to VTAP, OUTPUT tied to SENSE, VSHUTDOWN ≤ 0.7 V PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT 3.3-V VERSION (LP2951-33-Q1) 25°C 3.267 3.3 3.333 VOUT Output voltage IL = 100 μA V –40°C to 125°C 3.234 3.3 3.366 5-V VERSION (LP2951-50-Q1) 25°C 4.950 5 5.050 VOUT Output voltage IL = 100 μA V –40°C to 125°C 4.900 5 5.100 ALL VOLTAGE OPTIONS Output voltage temperature IL = 100 μA –40°C to 125°C 20 100 ppm/°C coefficient(1) 25°C 0.03 0.2 Line regulation(2) VIN = [VOUT(NOM) + 1 V] to 30 V %/V –40°C to 125°C 0.4 25°C 0.04% 0.2% Load regulation(2) IL = 100 μA to 100 mA –40°C to 125°C 0.3% 25°C 50 80 IL = 100 μA –40°C to 125°C 150 VIN – VOUT Dropout voltage(3) mV 25°C 380 450 IL = 100 mA –40°C to 125°C 600 25°C 75 120 IL = 100 μA μA –40°C to 125°C 140 IGND GND current 25°C 8 12 IL = 100 mA mA –40°C to 125°C 14 25°C 110 170 VIN = VOUT(NOM) – 0.5 V, Dropout ground current μA IL = 100 μA –40°C to 125°C 200 25°C 160 200 Current limit VOUT = 0 V mA –40°C to 125°C 220 (1) Output or reference voltage temperature coefficient is defined as the worst-case voltage change divided by the total temperature range. (2) Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification for thermal regulation. (3) Dropout voltage is defined as the input-to-output differential at which the output voltage drops 100 mV, below the value measured at 1-V differential. The minimum input supply voltage of 2 V (2.3 V over temperature) must be observed. 4 Submit Documentation Feedback Copyright © 2011–2014, Texas Instruments Incorporated Product Folder Links: LP2951-33-Q1 LP2951-50-Q1 |
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