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LMR23630ADDA Datasheet(PDF) 1 Page - Texas Instruments |
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LMR23630ADDA Datasheet(HTML) 1 Page - Texas Instruments |
1 / 40 page IOUT (A) 0.0001 0.001 0.01 0.1 1 10 40 50 60 70 80 90 100 D001 VOUT = 5 V VOUT = 3.3 V BOOT SW L CBOOT FB VIN VIN up to 36 V PGND COUT EN/SYNC CIN VCC AGND VOUT CVCC RFBT RFBB Product Folder Order Now Technical Documents Tools & Software Support & Community 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. LMR23630 SNVSAH2B – DECEMBER 2015 – REVISED APRIL 2017 LMR23630 SIMPLE SWITCHER® 36 V, 3 A Synchronous Step-Down Converter 1 1 Features 1 • 4.5 V to 36 V Input Range • 3 A Continuous Output Current • Integrated Synchronous Rectification • Current Mode Control • Minimum Switch-On Time: 60 ns • Internal Compensation for Ease of Use • 400 kHz Switching Frequency With PFM and Forced PWM Mode Options • Frequency Synchronization to External Clock • 75 µA Quiescent Current at No Load for PFM Option • Soft-Start into a Pre-Biased Load • High Duty Cycle Operation Supported • Precision Enable Input • Output Short-Circuit Protection with Hiccup Mode • Thermal Protection • 8-Pin HSOIC with PowerPAD™ Package 2 Applications • Automotive Battery Regulation • Industrial Power Supplies • Telecom and Datacom Systems • General Purpose Wide Vin Regulation 3 Description The LMR23630 SIMPLE SWITCHER® is an easy to use 36 V, 3 A synchronous step down regulator. With a wide input range from 4.5 V to 36 V, it is suitable for various applications from industrial to automotive for power conditioning from unregulated sources. Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. A quiescent current of 75 μA makes it suitable for battery powered systems. An ultra-low 2 μA shutdown current can further prolong battery life. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This also minimizes the external components. The device has option for constant frequency FPWM mode to achieve small output voltage ripple at light load. An extended family is available in 1 A (LMR23610) and 2.5 A (LMR23625) load current options in pin-to-pin compatible package which allows simple, optimum PCB layout. A precision enable input allows simplification of regulator control and system power sequencing. Protection features include cycle- by-cycle current limit, hiccup mode short circuit protection and thermal shutdown due to excessive power dissipation. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) LMR23630A HSOIC (8) 4.89 mm x 3.90 mm LMR23630AF (FPWM Option) HSOIC (8) 4.89 mm x 3.90 mm (1) For detail part numbers for all available different options, see the orderable addendum at the end of the data sheet. Simplified Schematic Efficiency vs Load VIN = 12 V, PFM Option |
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