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LMZ14203 Scheda tecnica(PDF) 1 Page - Texas Instruments |
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LMZ14203 Scheda tecnica(HTML) 1 Page - Texas Instruments |
1 / 25 page LMZ14203 www.ti.com SNVS632N – DECEMBER 2009 – REVISED MARCH 2013 LMZ14203 3A SIMPLE SWITCHER® Power Module with 42V Maximum Input Voltage Check for Samples: LMZ14203 1 KEY FEATURES DESCRIPTION 2 • Integrated Shielded Inductor The LMZ14203 SIMPLE SWITCHER® power module • Simple PCB Layout is an easy-to-use step-down DC-DC solution capable of driving up to 3A load with exceptional power • Flexible Startup Sequencing Using External conversion efficiency, line and load regulation, and Soft-start and Precision Enable output accuracy. The LMZ14203 is available in an • Protection Against Inrush Currents and Faults innovative package that enhances thermal such as Input UVLO and Output Short Circuit performance and allows for hand or machine • –40°C to 125°C Junction Temperature Range soldering. • Single Exposed Pad and Standard Pinout for The LMZ14203 can accept an input voltage rail Easy Mounting and Manufacturing between 6V and 42V and deliver an adjustable and highly accurate output voltage as low as 0.8V. The • Fast Transient Response for Powering FPGAs LMZ14203 only requires three external resistors and and ASICs four external capacitors to complete the power • Low Output Voltage Ripple solution. The LMZ14203 is a reliable and robust • Pin-to-pin Compatible Family: design with the following protection features: thermal shutdown, input under-voltage lockout, output over- – LMZ14203/2/1 (42V Max 3A, 2A, 1A) voltage protection, short-circuit protection, output – LMZ12003/2/1 (20V Max 3A, 2A, 1A) current limit, and allows startup into a pre-biased • Fully Enabled for Webench® Power Designer output. A single resistor adjusts the switching frequency up to 1 MHz. APPLICATIONS ELECTRICAL SPECIFICATIONS • Point of Load Conversions from 12V and 24V Input Rail • 18W Maximum Total Output Power • Time Critical Projects • Up to 3A Output Current • Space Constrained / High Thermal • Input voltage Range 6V to 42V Requirement Applications • Output Voltage Range 0.8V to 6V • Negative Output Voltage Applications • Efficiency up to 90% (See AN-2027 SNVA425) PERFORMANCE BENEFITS • Operates at High Ambient Temperature with no Thermal Derating • High Efficiency Reduces System Heat Generation • Low Radiated Emissions (EMI) Complies with EN55022 Class B Standard • Passes 10V/m Radiated Immunity EMI Test Figure 1. Easy To Use 7 Pin Package Standard EN61000 4-3 PFM 7 Pin Package 10.16 x 13.77 x 4.57 mm (0.4 x 0.542 x 0.18 in) θJA = 20°C/W, θJC = 1.9°C/W RoHS Compliant 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2009–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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