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LMR14030SQDDARQ1 Datasheet(PDF) 1 Page - Texas Instruments |
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LMR14030SQDDARQ1 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 35 page IOUT (A) 0.001 0.01 0.1 1 10 0 10 20 30 40 50 60 70 80 90 100 D001 VIN = 12 V, gSW = 500 kHz VOUT = 5 V VOUT = 3.3 V BOOT SW L CBOOT FB VIN VIN up to 40 V GND COUT EN CIN SS RT/SYNC VOUT CSS D RFBT RFBB RT Product Folder Sample & Buy 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. LMR14030-Q1 SNVSAG3A – NOVEMBER 2015 – REVISED JULY 2016 LMR14030-Q1 SIMPLE SWITCHER® 40 V, 3.5 A Step-Down Converter with 40 µA IQ 1 1 Features 1 • Qualified for Automotive Applications • AEC-Q100 Qualified With the Following Results: - Device Temperature Grade 1: -40 °C to 125 °C Ambient Operating Temperature Range - Device HBM ESD Classification Level H1C - Device CDM ESD Classification Level C4A • 4 V to 40 V Input Range • 3.5 A Continuous Output Current • Ultra-low 40 µA Operating Quiescent Current • 90 m Ω High-Side MOSFET • Minimum Switch-On Time: 75 ns • Current Mode Control • Adjustable Switching Frequency from 200 kHz to 2.5 MHz • Frequency Synchronization to External Clock • Spread Spectrum Option for Reduced EMI • Internal Compensation for Ease of Use • High Duty Cycle Operation Supported • Precision Enable Input • 1 µA Shutdown Current • External Soft-start • Thermal, Overvoltage and Short Protection • 8-Pin HSOIC with PowerPAD™ Package 2 Applications • Automotive Battery Regulation • Industrial Power Supplies • Telecom and Datacom Systems • General Purpose Wide Vin Regulation space 3 Description The LMR14030-Q1 is a 40 V, 3.5 A step down regulator with an integrated high-side MOSFET. With a wide input range from 4 V to 40 V, it’s suitable for various applications from industrial to automotive for power conditioning from unregulated sources. An extended family is available in 2 A and 5 A options in pin-to-pin compatible packages, including LMR14020- Q1 and LMR14050-Q1. The regulator’s quiescent current is 40 µA in Sleep-mode, which is suitable for battery powered systems. An ultra-low 1 μA current in shutdown mode can further prolong battery life. A wide adjustable switching frequency range allows either efficiency or external component size to be optimized. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This also minimizes the external components of the device. A precision enable input allows simplification of regulator control and system power sequencing. The device also has built-in protection features such as cycle-by-cycle current limit, thermal sensing and shutdown due to excessive power dissipation, and output overvoltage protection. The LMR14030-Q1 is available in an 8-pin HSOIC or 10-pin WSON package with exposed pad for low thermal resistance. Device Information (1) PART NUMBER PACKAGE BODY SIZE (NOM) LMR14030SQDDARQ1 HSOIC (8) 4.89 mm x 3.90 mm LMR14030SSQDDARQ1 (Spread Spectrum) HSOIC (8) 4.89 mm x 3.90 mm LMR14030QDPRRQ1 WSON (10) 4.10 mm x 4.10 mm LMR14030SQDPRRQ1 (Spread Spectrum) WSON (10) 4.10 mm x 4.10 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Simplified Schematic Efficiency vs Output Current |
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