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LM2852YMXA-1.2 数据表(PDF) 4 Page - National Semiconductor (TI) |
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LM2852YMXA-1.2 数据表(HTML) 4 Page - National Semiconductor (TI) |
4 / 13 page Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. PVIN, AVIN, EN, SNS −0.3V to 6.5V ESD Susceptibility (Note 2) 2kV Power Dissipation Internally Limited Storage Temperature Range −65˚C to +150˚C Maximum Junction Temp. 150˚C 14-Pin Exposed Pad TSSOP Package Infrared (15 sec) Vapor Phase (60 sec) Soldering (10 sec) 220˚C 215˚C 260˚C Operating Ratings PVIN to GND 1.5V to 5.5V AVIN to GND 2.85V to 5.5V Junction Temperature −40˚C to +125˚C θ JA 37.6˚C/W Electrical Characteristics AVIN = PVIN = 5V unless otherwise indicated under the Conditions column. Typicals and limits appearing in plain type apply for T A =TJ = +25˚C. Limits appearing in boldface type apply over full Oper- ating Junction Temperature Range (−40˚C to +125˚C). Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis. Symbol Parameter Conditions Min Typ Max Units SYSTEM PARAMETERS V OUT Voltage Tolerance 3 V OUT = 1.0V option 0.9775 1.0225 V V OUT = 1.2V option 1.1730 1.2270 V OUT = 1.5V option 1.4663 1.5337 V OUT = 1.8V option 1.7595 1.8405 V OUT = 2.5V option 2.4437 2.5563 V OUT = 3.3V option 3.2257 3.3743 ∆V OUT/ ∆AVIN Line Regulation 3 V OUT = 0.8V, 1.0V, 1.2V, 1.5V, 1.8V or 2.5V 2.85V ≤ AVIN ≤ 5.5V 0.2 0.6 % V OUT = 3.3V 3.5V ≤ AVIN ≤ 5.5V 0.2 0.6 % ∆V OUT/ ∆I O Load Regulation Normal operation 8 mV/A V ON UVLO Threshold (AVIN) Rising 2.47 2.85 V Falling Hysteresis 85 150 210 mV r DSON-P PFET On Resistance Isw=2A 75 140 m Ω r DSON-N NFET On Resistance Isw=2A 55 120 m Ω R SS Soft-start resistance 400 k Ω I CL Peak Current Limit Threshold 2.25 3 3.65 A I Q Operating Current Non-switching 0.85 2 mA I SD Shut Down Quiescent Current EN=0V 10 25 µA R SNS Sense pin resistance 400 k Ω PWM f osc LM2852X 1500kHz option. TBD 1500 TBD kHz LM2852Y 500kHz option. 325 500 625 kHz D range Duty Cycle Range 0 100 % www.national.com 4 |
类似零件编号 - LM2852YMXA-1.2 |
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类似说明 - LM2852YMXA-1.2 |
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