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Zakładka z wyszukiwarką danych komponentów |
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FAN5037M Arkusz danych(PDF) 1 Page - Fairchild Semiconductor |
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FAN5037M Arkusz danych(HTML) 1 Page - Fairchild Semiconductor |
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1 / 11 page  www.fairchildsemi.com REV. 1.0.3 9/26/01 Features • High power switch-mode DC-DC controller can provide in excess of 13A • Output voltage adjustable from 1.2V to 3.6V • 85% efficiency • Cumulative accuracy < 3% over line, load, and temperature variations • Overvoltage and short circuit protection • Built-in soft start • No overshoot at turn-on Applications • I/O and AGP power for desktop computers • High efficiency power for ASICs • High efficiency power for DSPs • Adjustable step-down power supplies Description The FAN5037 is a high power, switch-mode DC-DC control- ler that provides efficient power for all low-voltage applica- tions. This controller has a built-in Soft Start feature which offers system protection during power-up by reducing both inrush current and output overshoot. When combined with the appropriate external circuitry, the FAN5037 can deliver load currents as high as 13A at efficiencies as high as 88%. The FAN5037 can generate output voltages from 1.2V up to 3.6V using external resistors. The FAN5037 is designed to operate in a constant on-time control mode under all load conditions. Its accurate low TC reference eliminates the need for precision external compo- nents in order to achieve the tight tolerance voltage regula- tion required by many applications. Short circuit current protection is provided through the use of a current sense resistor, while overvoltage protection is provided internally. Block Diagram Feedback Control Oscillator Digital Logic FAN5037 1.20V Reference Vout +12V 5V +5V 1 CEXT VCCA 2 IFBL 4 IFBH 3 VCCP 8 7 DRV GNDP 6 VFB 5 FAN5037 Adjustable Switching Regulator Controller |
Podobny numer części - FAN5037M |
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Podobny opis - FAN5037M |
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