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LM43600PWPT Datasheet(PDF) 1 Page - Texas Instruments |
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LM43600PWPT Datasheet(HTML) 1 Page - Texas Instruments |
1 / 53 page EN 55022 Class B Limit Frequency (MHz) dBuV 80 70 60 50 40 30 20 10 30 Evaluation Board Emissions 1000 100 Vertical Polarization Horizontal Polarization SW VIN PGND CBOOT VCC BIAS SYNC RT ENABLE SS/TRK AGND FB LM43600 VIN COUT CBOOT CIN CVCC VOUT CBIAS RFBT RFBB CFF L PGOOD Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM43600 SNVSA43A – AUGUST 2014 – REVISED AUGUST 2014 LM43600 SIMPLE SWITCHER® 3.5 V to 36 V 0.5 A Synchronous Step-Down Voltage Converter 1 Features 3 Description The LM43600 SIMPLE SWITCHER® regulator is an 1 • 33 µA Quiescent Current in Regulation easy to use synchronous step-down DC-DC • High Efficiency at Light Load (DCM and PFM) converter capable of driving up to 0.5 A of load • Meets EN55022/CISPR 22 EMI standards current from an input voltage ranging from 3.5 V to 36 V (42 V transient). The LM43600 provides • Integrated Synchronous Rectification exceptional efficiency, output accuracy and drop-out • Adjustable Frequency Range: 200 kHz to 2.2 MHz voltage in a very small solution size. An extended (500 kHz default) family is available in 1 A, 2 A and 3 A load current • Frequency Synchronization to External Clock options in pin-to-pin compatible packages. Peak current mode control is employed to achieve simple • Internal Compensation control loop compensation and cycle-by-cycle current • Stable with Almost Any Combination of Ceramic, limiting. Optional features such as programmable Polymer, Tantalum, and Aluminum Capacitors switching frequency, synchronization, power-good • Power-Good Flag flag, precision enable, internal soft-start, extendable soft-start, and tracking provide a flexible and easy to • Soft-Start into Pre-Biased Load use platform for a wide range of applications. • Internal Soft-Start: 4.1 ms Discontinuous conduction and automatic frequency • Extendable Soft-Start Time by External Capacitor modulation at light loads improve light load efficiency. • Output Voltage Tracking Capability The family requires few external components and pin arrangement allows simple, optimum PCB layout. • Precision Enable to Program System UVLO Protection features include thermal shutdown, VCC • Output Short Circuit Protection with Hiccup Mode under-voltage lockout, cycle-by-cycle current limit, • Over Temperature Thermal Shutdown Protection and output short circuit protection. The LM43601 device is available in the HTSSOP / PWP 16 leaded 2 Applications package (5.1 mm x 6.6 mm x 1.2 mm) with 0.65 mm lead pitch. Pin to pin compatible with LM46000, • Industrial Power Supplies LM46001, LM46002, LM43601, LM43602, LM43603. • Telecommunications Systems Device Information(1) • Sub-AM Band Automotive PART NUMBER PACKAGE BODY SIZE (NOM) • General Purpose Wide VIN Regulation LM43600 HTSSOP (16) 5.10 mm x 6.60 mm • High Efficiency Point-Of-Load Regulation (1) For all available packages, see the orderable addendum at the end of the datasheet. 4 Simplified Schematic Radiated Emission Graph with VIN = 12 V, VOUT = 3.3 V, FS= 500 kHz, IOUT = 0.5 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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