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LMZ14203 Folha de dados(PDF) 5 Page - Texas Instruments |
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LMZ14203 Folha de dados(HTML) 5 Page - Texas Instruments |
5 / 29 page LMZ14203 www.ti.com SNVS632R – DECEMBER 2009 – REVISED OCTOBER 2015 Electrical Characteristics (continued) Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the junction temperature (TJ) range of –40°C to +125°C. 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 = 24 V, Vout = 3.3 V PARAMETER TEST CONDITIONS MIN(1) TYP(2) MAX(1) UNIT ON/OFF Timer tON-MIN ON timer minimum 150 ns pulse width tOFF OFF timer pulse 260 ns width Regulation and Overvoltage Comparator VFB In-regulation VSS > 0.8 V 0.804 feedback voltage TJ = –40°C to 125°C V over the junction temperature (TJ) 0.784 0.825 IO = 3 A range of –40°C to +125°C VSS > 0.8 V TJ = 25°C 0.786 0.802 0.818 V IO = 10 mA VFB-OV Feedback overvoltage 0.92 V protection threshold IFB Feedback input bias 5 nA current IQ Nonswitching Input VFB= 0.86 V 1 mA Current ISD Shut Down VEN= 0 V 25 μA Quiescent Current Thermal Characteristics TSD Thermal Shutdown Rising 165 °C TSD-HYST Thermal shutdown Falling 15 °C hysteresis PERFORMANCE PARAMETERS ΔVO Output Voltage 8 mV PP Ripple ΔVO/ΔVIN Line Regulation VIN = 12 V to 42 V, IO= 3 A 0.01% ΔVO/IOUT Load Regulation VIN = 24 V 1.5 mV/A η Efficiency VIN = 24 V VO = 3.3 V IO = 1 A 92% η Efficiency VIN = 24 V VO = 3.3 V IO = 3 A 85% Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LMZ14203 |
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