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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MIC24052 датащи(PDF) 1 Page - Microchip Technology |
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MIC24052 датащи(HTML) 1 Page - Microchip Technology |
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1 / 34 page  2016 Microchip Technology Inc. DS20005659A-page 1 MIC24052 Features • HyperLight Load® Efficiency: up to 80% at 10 mA • Hyper Speed Control® Architecture Enables: - High Delta V Operation (VIN = 19V and VOUT = 0.8V) - Small Output Capacitance • 4.5V to 19V Input Voltage Range • 6A Output Current Capability • Up to 95% Efficiency • Adjustable Output from 0.8V to 5.5V • ±1% Feedback Accuracy • Any Capacitor Stable - Zero-to-High ESR • 600 kHz Switching Frequency • Power Good (PG) Output • Foldback Current-Limit and “Hiccup Mode” Short-Circuit Protection • Supports Safe Start-Up into a Pre-Biased Load • –40°C to +125°C Junction Temperature Range • Available in a 28-pin 5 mm x 6 mm QFN Package Applications • Servers and Workstations • Routers, Switches, and Telecom Equipment • Base Stations General Description The MIC24052 is a constant-frequency, synchronous DC/DC buck regulator featuring a unique adaptive on-time control architecture. The MIC24052 operates over an input supply range of 4.5V to 19V. It has an internal linear regulator which provides a regulated 5V to power the internal control circuitry. The MIC24052 operates at a constant 600 kHz switching frequency in continuous-conduction mode and can be used to provide up to 6A of output current. The output voltage is adjustable down to 0.8V. Microchip’s HyperLight Load® architecture provides the same high-efficiency and ultra-fast transient response as the Hyper Speed Control® architecture under medium to heavy loads, but also maintains high efficiency under light load conditions by transitioning to variable-frequency, discontinuous-mode operation. The MIC24052 offers a full suite of protection features to ensure protection of the IC during fault conditions. These include undervoltage lockout to ensure proper operation under power-sag conditions, thermal shutdown, internal soft-start to reduce the inrush current, foldback current limit and “hiccup mode” short-circuit protection. The MIC24052 includes a power good (PG) output to allow simple sequencing. The 6A Hyper Speed Control part, MIC24051, is also available on Microchip’s web site. Typical Application Schematic MIC24052 28-PIN QFN 10k 2.2μF PG V IN 4.5V TO 19V 4.7μF x2 EN 0.1μF 2.2μH 0.1μF 19.6k 2.49k 4.7nF 2.00k V OUT 1.8V/6A 100μF MIC24052 VDD SGND PG VIN PVIN PGND EN BST SW CS FB 10k PVDD 12V, 6A High-Efficiency Buck Regulator with HyperLight Load® |
Аналогичный номер детали - MIC24052 |
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Аналогичное описание - MIC24052 |
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