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LMZ14203 bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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LMZ14203 bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 29 page 50 55 60 65 70 75 80 85 90 95 100 0 0.5 1 1.5 2 2.5 3 0.8 1.2 1.5 1.8 2.5 3.3 5.0 25°C OUTPUT CURRENT (A) VIN CIN Enable RON RFBT CFF CSS RFBB COUT LMZ14203 VOUT Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMZ14203 SNVS632R – DECEMBER 2009 – REVISED OCTOBER 2015 LMZ14203 SIMPLE SWITCHER® 6V to 42V, 3A Power Module in Leaded SMT-TO Package 1 Features 2 Applications 1 • Integrated Shielded Inductor • Point of Load Conversions From 12-V and 24-V Input Rail • Simple PCB Layout • Time-Critical Projects • Flexible Start-Up Sequencing Using External Soft- Start and Precision Enable • Space Constrained and High Thermal Requirement Applications • Protection Against Inrush Currents and Faults Such as Input UVLO and Output Short Circuit • Negative Output Voltage Applications (See AN-2027 SNVA425) • –40°C to 125°C Junction Temperature Range • Single Exposed Pad and Standard Pinout for Easy 3 Description Mounting and Manufacturing The LMZ14203 SIMPLE SWITCHER power module • Fast Transient Response for Powering FPGAs is an easy-to-use step-down DC-DC solution that can and ASICs drive up to 3-A load with exceptional power • Low Output Voltage Ripple conversion efficiency, line and load regulation, and output accuracy. The LMZ14203 is available in an • Pin-to-Pin Compatible Family: innovative package that enhances thermal – LMZ1420x (42 V Maximum 3 A, 2 A, 1 A) performance and allows for hand or machine – LMZ1200x (20 V Maximum 3 A, 2 A, 1 A) soldering. • Fully Enabled for WEBENCH® Power Designer The LMZ14203 can accept an input voltage rail • Electrical Specifications between 6 V and 42 V and deliver an adjustable and highly accurate output voltage as low as 0.8 V. The – 18-W Maximum Total Output Power LMZ14203 only requires three external resistors and – Up to 3-A Output Current four external capacitors to complete the power – Input Voltage Range 6 V to 42 V solution. The LMZ14203 is a reliable and robust design with the following protection features: thermal – Output Voltage Range 0.8 V to 6 V shutdown, input UVLO, output overvoltage protection, – Efficiency up to 90% short-circuit protection, output current limit, and • Performance Benefits allows start-up into a prebiased output. A single – Operates at High Ambient Temperature With resistor adjusts the switching frequency up to 1 MHz. No Thermal Derating Device Information(1)(2) – High Efficiency Reduces System Heat PART NUMBER PACKAGE BODY SIZE (NOM) Generation LMZ14203 TO-PMOD (7) 10.16 mm × 9.85 mm – Low Radiated Emissions (Electromagnetic (1) For all available packages, see the orderable addendum at Interference [EMI]) Tested With EN55022 the end of the data sheet. Class B Standard (2) Peak reflow temperature equals 245°C. See SNAA214 for – Passes 10-V/m Radiated Immunity EMI Test more details. Standard EN61000 4-3 Simplified Application Schematic Efficiency 12-V Input at 25°C 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
Số phần tương tự - LMZ14203 |
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Mô tả tương tự - LMZ14203 |
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