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LMR24210 Datasheet(PDF) 5 Page - Texas Instruments |
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LMR24210 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 25 page  LMR24210 www.ti.com SNVS738G – OCTOBER 2011 – REVISED APRIL 2013 Electrical Characteristics Specifications with standard type are for TJ = 25°C only; limits in boldface type apply over the full Operating Junction Temperature (TJ) range. Minimum and Maximum limits are ensured 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 stated the following conditions apply: VIN = 18V, VOUT = 3.3V. (1) Symbol Parameter Conditions Min Typ Max Units Start-Up Regulator, VCC VCC VCC output voltage CCC = 680nF, no load 5.0 6.0 7.2 V VIN - VCC VIN - VCC dropout voltage ICC = 20mA 350 mV IVCCL VCC current limit (2) VCC = 0V 40 65 mA VCC-UVLO VCC under-voltage lockout threshold VIN increasing 3.55 3.75 3.95 V (UVLO) VCC-UVLO-HYS VCC UVLO hysteresis VIN decreasing – DSBGA 150 mV package tVCC-UVLO-D VCC UVLO filter delay 3 µs IIN IIN operating current No switching, VFB = 1V 0.7 1 mA IIN-SD IIN operating current, Device shutdown VEN = 0V 25 40 µA Switching Characteristics RDS-UP-ON Main MOSFET RDS(on) 0.18 0.375 Ω RDS- DN-ON Syn. MOSFET RDS(on) 0.11 0.225 Ω VG-UVLO Gate drive voltage UVLO VBST - VSW increasing 3.3 4 V Soft-start ISS SS pin source current VSS = 0.5V 11 µA Current Limit ICL Syn. MOSFET current limit threshold LMR24210 1.2 1.8 2.6 A ON/OFF Timer ton ON timer pulse width VIN = 10V, RON = 100 kΩ 1.38 µs VIN = 30V, RON = 100 kΩ 0.47 ton-MIN ON timer minimum pulse width 150 ns toff OFF timer pulse width 260 ns Enable Input VEN EN Pin input threshold VEN rising 1.13 1.18 1.23 V VEN-HYS Enable threshold hysteresis VEN falling 90 mV Regulation and Over-Voltage Comparator VFB In-regulation feedback voltage VSS ≥ 0.8V 0.784 0.8 0.816 V TJ = −40°C to +125°C VFB-OV Feedback over-voltage threshold 0.888 0.920 0.945 V IFB FB pin current 5 nA Thermal Shutdown TSD Thermal shutdown temperature TJ rising 165 °C TSD-HYS Thermal shutdown temperature TJ falling 20 °C hysteresis (1) Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical Quality Control (SQC) methods. Limits are used to calculate Average Outgoing Quality Level (AOQL). (2) VCC provides self bias for the internal gate drive and control circuits. Device thermal limitations limit external loading. Copyright © 2011–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LMR24210 |
Similar Part No. - LMR24210_15 |
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