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LM3488MMX датащи(PDF) 1 Page - Texas Instruments |
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LM3488MMX датащи(HTML) 1 Page - Texas Instruments |
1 / 37 page Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3488, LM3488-Q1 SNVS089N – JULY 2000 – REVISED DECEMBER 2014 LM3488/-Q1 High-Efficiency, Low-Side, N-Channel Controller for Switching Regulators 1 Features 3 Description The LM3488 is a versatile low-side N-FET high- 1 • LM3488-Q1 is AEC-Q100 Qualified and performance controller for switching regulators. This Manufactured on an Automotive-Grade Flow device is suitable for use in topologies requiring low- • 8-Lead VSSOP Package side FET, such as boost, flyback, or SEPIC. • Internal Push-Pull Driver With 1-A Peak Current Moreover, the LM3488 can be operated at extremely high switching frequency to reduce the overall Capability solution size. The switching frequency of LM3488 can • Current Limit and Thermal Shutdown be adjusted to any value from 100 kHz to 1 MHz by • Frequency Compensation Optimized With a using a single external resistor or by synchronizing it Capacitor and a Resistor to an external clock. Current mode control provides • Internal Soft-Start superior bandwidth and transient response, besides cycle-by-cycle current limiting. Output current can be • Current Mode Operation programmed with a single external resistor. • Undervoltage Lockout With Hysteresis The LM3488 has built-in features such as thermal • Key Specifications: shutdown, short-circuit protection, and overvoltage – Wide Supply Voltage Range of 2.97 V to 40 V protection. Power-saving shutdown mode reduces the – 100-kHz to 1-MHz Adjustable and total supply current to 5 µA and allows power supply sequencing. Internal soft-start limits the inrush current Synchronizable Clock Frequency at start-up. – ±1.5% (Overtemperature) Internal Reference – 5-µA Shutdown Current (Overtemperature) Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) 2 Applications LM3488 VSSOP (8) 3.00 mm × 3.00 mm • Distributed Power Systems LM3488-Q1 • Notebook, PDA, Digital Camera, and other (1) For all available packages, see the orderable addendum at Portable Applications the end of the datasheet. • Offline Power Supplies • Set-Top Boxes Typical SEPIC Converter 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. |
Аналогичный номер детали - LM3488MMX |
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Аналогичное описание - LM3488MMX |
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