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LM43603QPWPTQ1 データシート(PDF) 1 Page - Texas Instruments |
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LM43603QPWPTQ1 データシート(HTML) 1 Page - Texas Instruments |
1 / 50 page 0 10 20 30 40 50 60 70 80 0 200 400 600 800 1000 Frequency (MHz) Evaluation Board EN 55022 Class B Limit EN 55022 Class A Limit C001 C001 SW VIN PGND CBOOT VCC BIAS SYNC RT ENABLE SS/TRK AGND FB LM43603Q VIN COUT CBOOT CIN CVCC VOUT CBIAS RFBT RFBB CFF L PGOOD Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM43603-Q1 SNVSA82A – APRIL 2015 – REVISED MAY 2015 LM43603-Q1 SIMPLE SWITCHER® 3.5 V to 36 V 3 A Synchronous Step-Down Voltage Converter 1 Features 3 Description The LM43603-Q1 SIMPLE SWITCHER® regulator is 1 • LM43603-Q1 is an Automotive-Grade Product that an easy-to-use synchronous step-down DC-DC is AEC-Q100 Qualified (–40°C to +125°C converter capable of driving up to 3 A of load current Operating Junction Temperature) from an input voltage ranging from 3.5 V to 36 V (42 • 27 µA Quiescent Current in Regulation V abs max). The LM43603-Q1 provides exceptional efficiency, output accuracy, and dropout voltage in a • High Efficiency at Light Load (DCM and PFM) very small solution size. An extended family is • Meets EN55022/CISPR 22 EMI Standards available in 0.5 A ,1 A, and 2 A load current options • Integrated Synchronous Rectification in pin-to-pin compatible packages. Peak current • Adjustable Frequency Range: 200 kHz to 2.2 MHz mode control is employed to achieve simple control (500 kHz default) loop compensation and cycle-by-cycle current limiting. Optional features such as programmable • Frequency Synchronization to External Clock switching frequency, synchronization, power-good • Internal Compensation flag, precision enable, internal soft-start, extendable • Stable with Almost any Combination of Ceramic, soft-start, and tracking provide a flexible and easy to Polymer, Tantalum, and Aluminum Capacitors use platform for a wide range of applications. Discontinuous conduction and automatic frequency • Power-Good Flag modulation at light loads improve light load efficiency. • Soft-Start into a Pre-Biased Load The family requires few external components and pin • Internal Soft-Start: 4.1 ms arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCC • Extendable Soft-Start Time by External Capacitor undervoltage lockout, cycle-by-cycle current limit, and • Output Voltage Tracking Capability output short circuit protection. The LM43603-Q1 • Precision Enable to a Program System UVLO device is available in the HTSSOP / PWP 16-pin • Output Short Circuit Protection with Hiccup Mode leaded package (5.1 mm x 6.6 mm x 1.2 mm); the device is pin-to-pin compatible with LM43600, • Overtemperature Thermal Shutdown Protection LM43601, LM43602, LM46000, LM46001, and LM46002. 2 Applications • Sub-AM Band Automotive Device Information PART NUMBER PACKAGE BODY SIZE • Industrial Power Supplies LM43603-Q1 HTSSOP (16) 5.1 mm x 6.6 mm • Telecommunications Systems • General Purpose Wide VIN Regulation • High Efficiency Point-Of-Load Regulation 4 Simplified Schematic Radiated Emission Graph 12 VIN to 3.3 VOUT, FS = 500 kHz, IOUT = 3 A 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. |
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同様の説明 - LM43603QPWPTQ1 |
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