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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LT3758 датащи(PDF) 1 Page - Linear Technology |
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LT3758 датащи(HTML) 1 Page - Linear Technology |
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1 / 36 page  LT3758 1 3758f n Wide Input Voltage Range: 5.5V to 100V n Positive or Negative Output Voltage Programming with a Single Feedback Pin n Current Mode Control Provides Excellent Transient Response n Programmable Operating Frequency (100kHz to 1MHz) with One External Resistor n Synchronizeable to an External Clock n Output Overvoltage Protection n Low Shutdown Current < 1μA n Internal 7.2V Low Dropout Voltage Regulator n Programmable Input Undervoltage Lockout with Hysteresis n Programmable Soft-Start n Small 10-Lead DFN (3mm × 3mm) and MSOPE Packages TYPICAL APPLICATION DESCRIPTION High Input Voltage, Boost, Flyback, SEPIC and Inverting Controller The LT ®3758 is a wide input range, current mode, DC/DC controller which is capable of generating either positive or negative output voltages. It can be configured as either a boost, flyback, SEPIC or inverting converter. The LT3758 drives a low side external N-channel power MOSFET from an internal regulated 7.2V supply. The fixed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages. The operating frequency of LT3758 can be set with an external resistor over a 100kHz to 1MHz range, and can be synchronized to an external clock using the SYNC pin. A minimum operating supply voltage of 5.5V, and a low shutdown quiescent current of less than 1μA, make the LT3758 ideally suited for battery-powered systems. The LT3758 features soft-start and frequency foldback functions to limit inductor current during start-up and output short-circuit. The device is available in a small 10-lead DFN (3mm × 3mm) or MSOPE package. 12V Output Nonisolated Flyback Power Supply FEATURES APPLICATIONS n Automotive n Telecom n Industrial SENSE LT3758 VIN DSN VIN 36V TO 72V CIN 2.2μF 100V X7R 63.4k 200kHz GATE FBX GND INTVCC SHDN/UVLO SYNC RT SS VC 0.022μF 100V T1 1,2,3 (SERIES) 4,5,6 (PARALLEL) 1M 44.2k 0.47μF 100pF 10k 10nF 0.030Ω 15.8k 1% 105k 1% CVCC 4.7μF 10V X5R VOUT 12V 1.2A 3758 TA01 COUT 47μF X5R 6.2k D1 SW M1 5.1Ω 1N4148 L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Patents pending. |
Аналогичный номер детали - LT3758 |
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Аналогичное описание - LT3758 |
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ссылки URL |
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