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LMZ22003 Fiches technique(PDF) 1 Page - Texas Instruments |
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LMZ22003 Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 33 page 0 1 2 3 40 50 60 70 80 90 100 OUTPUT CURRENT (A) 9 VIn 12 Vin 20 Vin VIN CIN 22 2F Enable RFBT See Table CSS 0.47 2F RFBB See Table Co 220 2F LMZ22003 VOUT @ 3A Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMZ22003 SNVS658I – MARCH 2011 – REVISED AUGUST 2015 LMZ22003 3-A SIMPLE SWITCHER® Power Module With 20-V Maximum Input Voltage 1 Features 2 Applications 1 • Integrated Shielded Inductor • Point-of-load Conversions from 12-V Input Rail • Simple PCB Layout • Time-Critical Projects • Frequency Synchronization Input (650 kHz to 950 • Space Constrained and High Thermal kHz) Requirement Applications • Flexible Start-up Sequencing Using External Soft- • Negative Output Voltage Applications Start, Tracking and Precision Enable (See AN-2027 SNVA425) • Protection Against Inrush Currents and Faults 3 Description such as Input UVLO and Output Short Circuit The LMZ22003 SIMPLE SWITCHER® power module • Junction Temperature Range –40°C to 125°C is an easy-to-use step-down DC-DC solution capable • Single Exposed Pad and Standard Pinout for Easy of driving up to 3-A load. The LMZ22003 is available Mounting and Manufacturing in an innovative package that enhances thermal • Fast Transient Response for Powering FPGAs performance and allows for hand or machine soldering. and ASICs • Fully Enabled for WEBENCH® Power Designer The LMZ22003 can accept an input voltage rail between 6 V and 20 V and can deliver an adjustable • Pin Compatible With and highly accurate output voltage as low as 0.8 V. LMZ23605/LMZ23603/LMZ22005 The LMZ22003 only requires two external resistors • Electrical Specifications and three external capacitors to complete the power – 18-W Maximum Total Output Power solution. The LMZ22003 is a reliable and robust design with the following protection features: thermal – Up to 3-A Output Current shutdown, programmable input undervoltage lockout, – Input Voltage Range 6 V to 20 V output overvoltage protection, short circuit protection, – Output Voltage Range 0.8 V to 6 V output current limit, and this device allows start-up into a prebiased output. The sync input allows – Efficiency up to 92% synchronization over the 650- to 950-kHz switching • Performance Benefits frequency range. – High Efficiency Reduces System Heat Generation Device Information(1)(2) – Tested To EN55022 Class B(1) PART NUMBER PACKAGE BODY SIZE (NOM) – Low Component Count, Only 5 External LMZ22003 NDW (7) 10.16 mm × 9.85 mm Components (1) For all available packages, see the orderable addendum at the end of the data sheet. – Low Output Voltage Ripple (2) Peak reflow temperature equals 245°C. See SNAA214 for – Uses PCB as Heat Sink, No Airflow Required more details. NOTE: EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007. See AN-2125 SNVA473 and layout for information on device under test. Vin = 12 V, Vo = 3.3 V, Io = 3 A Simplified Application Schematic Efficiency 5-V Output at 25°C Ambient 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. |
Numéro de pièce similaire - LMZ22003_15 |
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Description similaire - LMZ22003_15 |
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