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LMR14020SSQDDARQ1 Datasheet(PDF) 5 Page - Texas Instruments |
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LMR14020SSQDDARQ1 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 35 page 5 LMR14020-Q1 www.ti.com SNVSAG4A – NOVEMBER 2015 – REVISED JULY 2016 Product Folder Links: LMR14020-Q1 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. (2) Power rating at a specific ambient temperature TA should be determined with a maximum junction temperature (TJ) of 125°C, which is illustrated in Recommended Operating Conditions section. 6.4 Thermal Information THERMAL METRIC (1) (2) LMR14020-Q1 UNIT DDA (HSOIC) DPR (WSON) 8 PINS 10 PINS RθJA Junction-to-ambient thermal resistance 42.5 36.5 °C/W ψJT Junction-to-top characterization parameter 9.9 0.3 °C/W ψJB Junction-to-board characterization parameter 25.4 13.8 °C/W RθJC(top) Junction-to-case (top) thermal resistance 56.1 35.2 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 3.8 3.1 °C/W RθJB Junction-to-board thermal resistance 25.5 13.6 °C/W 6.5 Electrical Characteristics Limits apply over the recommended operating junction temperature (TJ) range of -40°C to +125°C, unless otherwise stated. Minimum and Maximum limits are specified through test, design or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise specified, the following conditions apply: VIN = 4.0 V to 40 V PARAMETER TEST CONDITIONS MIN TYP MAX UNIT POWER SUPPLY (VIN PIN) VIN Operation input voltage 4 40 V UVLO Under voltage lockout thresholds Rising threshold 3.5 3.7 3.9 V Hysteresis 285 mV ISHDN Shutdown supply current VEN = 0 V, TJ = 25 °C, 4.0 V ≤ VIN ≤ 40 V 1.0 3.0 μA IQ Operating quiescent current (non- switching) VFB = 1.0 V, TJ = 25 °C 40 μA ENABLE (EN PIN) VEN_TH EN Threshold Voltage 1.05 1.20 1.38 V IEN_PIN EN PIN current Enable threshold +50 mV -4.6 μA Enable threshold -50 mV -1.0 IEN_HYS EN hysteresis current -3.6 μA EXTERNAL SOFT-START ISS SS pin current TJ = 25 °C -3.0 μA POWER GOOD (PGOOD PIN) VPG_UV Power-good flag under voltage tripping threshold POWER GOOD (% of FB voltage) 94% POWER BAD (% of FB voltage) 92% VPG_OV Power-good flag over voltage tripping threshold POWER BAD (% of FB voltage) 109% POWER GOOD (% of FB voltage) 107% VPG_HYS Power-good flag recovery hysteresis % of FB voltage 2% IPG PGOOD leakage current at high level output VPull-Up = 5 V 10 200 nA VPG_LOW PGOOD low level output voltage IPull-Up = 1 mA 0.1 V VIN_PG_MIN Minimum VIN for valid PGOOD output VPull-Up < 5 V at IPull-Up = 100 μA 1.6 1.95 V VOLTAGE REFERENCE (FB PIN) VFB Feedback voltage TJ = 25 °C 0.744 0.750 0.756 V TJ = -40 °C to 125 °C 0.735 0.750 0.765 V HIGH-SIDE MOSFET RDS_ON On-resistance VIN = 12 V, BOOT to SW = 5.8 V 90 180 m Ω |
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