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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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LM2750 Scheda tecnica(PDF) 5 Page - Texas Instruments |
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LM2750 Scheda tecnica(HTML) 5 Page - Texas Instruments |
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5 / 29 page  5 LM2750, LM2750-ADJ www.ti.com SNVS180N – APRIL 2002 – REVISED APRIL 2016 Product Folder Links: LM2750 LM2750-ADJ Submit Documentation Feedback Copyright © 2002–2016, Texas Instruments Incorporated (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. 6.4 Thermal Information THERMAL METRIC(1) LM2750-5.0, LM2750-ADJ UNIT NGY (WSON) DSC (WSON) 10 PINS 10 PINS RθJA Junction-to-ambient thermal resistance 62.4 45.6 °C/W RθJC(top) Junction-to-case (top) thermal resistance 60.2 46.2 °C/W RθJB Junction-to-board thermal resistance 36.1 21.5 °C/W ψJT Junction-to-top characterization parameter 1.2 0.7 °C/W ψJB Junction-to-board characterization parameter 36.2 21.8 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 5.7 6.5 °C/W (1) All voltages are with respect to the potential at the GND pin. (2) Minimum and maximum limits are specified by design, test, or statistical analysis. Typical numbers represent the most likely norm. (3) CFLY, CIN, and COUT : Low-ESR Surface-Mount Ceramic Capacitors (MLCCs) used in setting electrical characteristics (4) Efficiency is measured versus VIN, with VIN being swept in small increments from 3 V to 4.2 V. The average is calculated from these measurements results. Weighting to account for battery voltage discharge characteristics (VBAT vs. time) is not done in computing the average. 6.5 Electrical Characteristics Typical values apply for TJ = 25°C; minimum and maximum limits apply over the operating junction temperature range; 2.9 V ≤ VIN ≤ 5.6 V, VOUT = 5 V (LM2750-ADJ), V(SD) = VIN, CFLY = 1 µF, CIN = 2 × 1 µF, COUT = 2 × 1 µF, unless otherwise specified (1) (2) (3). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOUT Output voltage (LM2750-5.0) 2.9 V ≤ VIN ≤ 5.6 V, IOUT ≤ 120 mA 4.8 (–4%) 5 5.2 (4%) V 2.7 V ≤ VIN ≤ 2.9 V, IOUT ≤ 40 mA, TJ = 25°C 4.8 (–4%) 5 5.2 (4%) IQ Operating supply current IOUT = 0mA, TJ = 25°C VIH(MIN) ≤ V(SD) ≤ VIN 5 10 mA IOUT = 0 mA, VIH(MIN) ≤ V(SD) ≤ VIN 12 ISD Shutdown supply current V(SD) = 0V 2 µA VFB Feedback pin voltage (LM2750-ADJ) VIN = 3.1 V 1.17 1.232 1.294 V IFB Feedback pin input current (LM2750-ADJ) VFB = 1.4 V 1 nA VR Output ripple COUT = 10 µF, IOUT = 100 mA 4 mVp-p COUT = 2.2 µF, IOUT = 100 mA 15 EPEAK Peak efficiency (LM2750-5.0) VIN = 2.7 V, IOUT = 40 mA 87% VIN = 2.9 V, IOUT = 120 mA 85% EAVG Average Efficiency over Li-Ion Input Range (LM2750-5.0) (4) VIN = 2.9 V to 4.2 V, IOUT = 120 mA 70% VIN = 2.9 V to 4.2 V, IOUT = 40 mA 67% ƒSW Switching frequency 1 1.7 MHz ILIM Current limit VOUT shorted to GND 300 mA |
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