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LM3102 Datasheet(PDF) 5 Page - Texas Instruments |
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LM3102 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 24 page  LM3102 www.ti.com SNVS515G – SEPTEMBER 2007 – REVISED JANUARY 2012 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 guaranteed 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. 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 = 2mA 50 200 mV ICC = 20mA 350 570 IVCCL VCC current limit (Note 4) VCC = 0V 40 65 mA VCC-UVLO VCC under-voltage lockout threshold VIN increasing 3.6 3.75 3.9 V (UVLO) VCC-UVLO-HYS VCC UVLO hysteresis VIN decreasing – TSSOP 130 mV package VCC-UVLO-HYS VCC UVLO hysteresis VIN decreasing – μSMD 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 6 8 10 µA Current Limit ICL Syn. MOSFET current limit threshold LM3102 2.7 A ICL Syn. MOSFET current limit threshold LM3102TLX–1 1.5 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 VSS ≥ 0.8V 0.788 0.812 TJ = 0°C to +125°C VFB-OV Feedback over-voltage threshold 0.888 0.920 0.945 V IFB 5 nA Thermal Shutdown TSD Thermal shutdown temperature TJ rising 165 °C TSD-HYS Thermal shutdown temperature TJ falling 20 °C hysteresis Copyright © 2007–2012, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM3102 |
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