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LT8331 bảng dữ liệu(PDF) 1 Page - Analog Devices |
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LT8331 bảng dữ liệu(HTML) 1 Page - Analog Devices |
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1 / 30 page  LT8365 1 Rev. A For more information www.analog.com Document Feedback TYPICAL APPLICATION FEATURES DESCRIPTION Low IQ Boost/SEPIC/Inverting Converter with 1.5A, 150V Switch The LT®8365 is a current mode DC/DC converter with a 1.5A, 150V switch operating from a 2.8V to 60V input. With a unique single feedback pin architecture it is capable of boost, SEPIC or inverting configurations. Burst Mode operation consumes as low as 9µA quiescent current to maintain high efficiency at very low output currents, while keeping typical output ripple below 15mV. An external compensation pin allows optimization of loop bandwidth over a wide range of input and output voltages andprogrammableswitchingfrequenciesbetween100kHz and 500kHz. A SYNC/MODE pin allows synchronization to an external clock. It can also be used to select between burst or pulse-skipping modes of operation with or with- out spread spectrum frequency modulation for low EMI. For increased efficiency, a BIAS pin can accept a second input to supply the INTVCC regulator. Additional features include frequency foldback and programmable soft-start to control inductor current during startup. The LT8365 is available in a thermally enhanced 16-lead MSOP package with four pins removed for high voltage pin spacings. 400kHz, –250V Output Inverting Converter APPLICATIONS n Wide Input Voltage Range: 2.8V to 60V n Ultralow Quiescent Current and Low Ripple Burst Mode® Operation: IQ = 9µA n 1.5A, 150V Power Switch n Positive or Negative Output Voltage Programming with a Single Feedback Pin n Programmable Frequency (100kHz to 500kHz) n Synchronizable to an External Clock n Spread Spectrum Frequency Modulation for Low EMI n BIAS Pin for Higher Efficiency n Programmable Undervoltage Lockout (UVLO) n Thermally Enhanced 16-lead MSOP Package n AEC-Q100 Qualified for Automotive Applications n Industrial and Automotive n Telecom n Medical Diagnostic Equipment n Portable Electronics All registered trademarks and trademarks are the property of their respective owners. Switching Waveforms 1µF 10µF 1nF 0.22µF 1M 3.24k 84.5k 107k 0.22µF 10µH 0.1µF 20 20 0.22µF 0.1µF EN/UVLO RT VIN SW FBX BIAS INTVCC SS GND VC LT8365 SYNC/MODE VIN VOUT 9V TO 30V –250V 10mA D1, D2, D3, D4: DIODES INC. DFLS1150 L1: WURTH ELEKTRONIK WE-PD 74437324100 VOUT 8365 TA01a 1µs/DIV IL 500mA/DIV VSW 50V/DIV 8365 TA01b |
Số phần tương tự - LT8331 |
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Mô tả tương tự - LT8331 |
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