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LM3218 Folha de dados(PDF) 3 Page - Texas Instruments |
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LM3218 Folha de dados(HTML) 3 Page - Texas Instruments |
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3 / 21 page  LM3218 www.ti.com SNOSB11B – MARCH 2008 – REVISED MARCH 2013 ABSOLUTE MAXIMUM RATINGS (1) (2) (3) VDD, PVIN to SGND −0.2V to +6.0V PGND to SGND −0.2V to +0.2V EN, FB, VCON (SGND −0.2V) to (VDD +0.2V) w/6.0V max VOUT (PGND −0.2V) to (PVIN +0.2V) w/6.0V max PVIN to VDD −0.2V to +0.2V Continuous Power Dissipation(4) Internally Limited Junction Temperature (TJ-MAX) +150°C Storage Temperature Range −65°C to +150°C Maximum Lead Temperature (Soldering, 10 sec.) +260°C ESD Rating(5)(6) Human Body Model: 2000V Machine Model: 200V (1) Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation of the device is ensured. Operating Ratings do not imply specified performance limits. For specified performance limits and associated test conditions, see the Electrical Characteristics tables. (2) All voltages are with respect to the potential at the GND pins. The LM3218 is designed for mobile phone applications where turn-on after power-up is controlled by the system controller and where requirements for a small package size overrule increased die size for internal Under Voltage Lock-Out (UVLO) circuitry. Thus, it should be kept in shutdown by holding the EN pin low until the input voltage exceeds 2.7V. (3) If Military/Aerospace specified devices are required, please contact the TI Sales Office/Distributors for availability and specifications. (4) Internal thermal shutdown circuitry protects the device from permanent damage. Thermal shutdown engages at TJ = 150°C (typ.) and disengages at TJ = 125°C (typ.). (5) The Human body model is a 100 pF capacitor discharged through a 1.5 k Ω resistor into each pin. (MIL-STD-883 3015.7) The machine model is a 200 pF capacitor discharged directly into each pin. (6) TI recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper ESD handling procedures can result in damage. OPERATING RATINGS (1) (2) Input Voltage Range 2.7V to 5.5V Recommended Load Current 0 mA to 650 mA Junction Temperature (TJ) Range −30°C to +125°C Ambient Temperature (TA) Range (3) −30°C to +85°C (1) Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation of the device is ensured. Operating Ratings do not imply specified performance limits. For specified performance limits and associated test conditions, see the Electrical Characteristics tables. (2) All voltages are with respect to the potential at the GND pins. The LM3218 is designed for mobile phone applications where turn-on after power-up is controlled by the system controller and where requirements for a small package size overrule increased die size for internal Under Voltage Lock-Out (UVLO) circuitry. Thus, it should be kept in shutdown by holding the EN pin low until the input voltage exceeds 2.7V. (3) In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may have to be de-rated. Maximum ambient temperature (TA-MAX) is dependent on the maximum operating junction temperature (TJ-MAX-OP = 125°C), the maximum power dissipation of the device in the application (PD-MAX), and the junction-to ambient thermal resistance of the part/package in the application ( θJA), as given by the following equation: TA-MAX = TJ-MAX-OP – (θJA × PD-MAX). THERMAL PROPERTIES Junction-to-Ambient Thermal 120°C/W Resistance ( θJA), NQA Package (1) (1) Junction-to-ambient thermal resistance ( θJA) is taken from thermal measurements, performed under the conditions and guidelines set forth in the JEDEC standard JESD51-7. A 4–layer, 4" x 4", 2/1/1/2 oz. Cu board as per JEDEC standards is used for the measurements. Copyright © 2008–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM3218 |
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