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LM46002 bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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LM46002 bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 52 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 SW VIN PGND CBOOT VCC BIAS SYNC RT ENABLE SS/TRK AGND FB LM46002 VIN COUT CBOOT CIN CVCC VOUT CBIAS RFBT RFBB CFF L PGOOD Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM46002 SNVSA13B – APRIL 2014 – REVISED SEPTEMBER 2014 LM46002 SIMPLE SWITCHER® 3.5 V to 60 V 2 A Synchronous Step-Down Voltage Converter 1 Features 3 Description The LM46002 SIMPLE SWITCHER® regulator is an 1 • 27 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 2 A of load current • Meets EN55022/CISPR 22 EMI standards from an input voltage ranging from 3.5 V to 60 V. The LM46002 provides exceptional efficiency, output • Integrated Synchronous Rectification accuracy and drop-out voltage in a very small • Adjustable Frequency Range: 200 kHz to 2.2 MHz solution size. An extended family is available in (500 kHz default) various load current options and 36 V maximum input • Frequency Synchronization to External Clock voltage in pin-to-pin compatible packages, including LM46001, LM46000, LM43603, LM43602, LM43601 • Internal Compensation and LM43600. Peak current mode control is • Stable with Almost Any Combination of Ceramic, employed to achieve simple control loop Polymer, Tantalum, and Aluminum Capacitors compensation and cycle-by-cycle current limiting. • Power-Good Flag Optional features such as programmable switching frequency, synchronization, power-good flag, • Soft-Start into Pre-Biased Load precision enable, internal soft-start, extendable soft- • Internal Soft-Start: 4.1 ms start, and tracking provide a flexible and easy to use • Extendable Soft-Start Time by External Capacitor platform for a wide range of applications. • Output Voltage Tracking Capability Discontinuous conduction and automatic frequency reduction at light loads improve light load efficiency. • Precision Enable to Program System UVLO The family requires few external components. Pin • Output Short Circuit Protection with Hiccup Mode arrangement allows simple, optimum PCB layout. • Over Temperature Thermal Shutdown Protection Protection features include thermal shutdown, VCC under-voltage lockout, cycle-by-cycle current limit, 2 Applications and output short circuit protection. The LM46002 device is available in the HTSSOP / PWP 16 leaded • Industrial Power Supplies package (5.1 mm x 6.6 mm x 1.2 mm) with 0.65 mm • Telecommunications Systems lead pitch. • Sub-AM Band Automotive Device Information • Commercial Vehicle Power Supplies ORDER NUMBER PACKAGE BODY SIZE • General Purpose Wide VIN Regulation LM46002PWP HTSSOP (16) 5.1 mm x 6.6 mm • High Efficiency Point-Of-Load Regulation 4 Simplified Schematic Radiated Emission Graph VIN = 24 V, VOUT = 3.3 V, FS= 500 kHz, IOUT = 2 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. |
Số phần tương tự - LM46002 |
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Mô tả tương tự - LM46002 |
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