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D52LC Arkusz danych(PDF) 7 Page - Maxim Integrated Products |
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D52LC Arkusz danych(HTML) 7 Page - Maxim Integrated Products |
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7 / 12 page ![]() 16µA IQ, 1.2A PWM DC-DC Step-Down Converters _______________________________________________________________________________________ 7 LX SS ON OFF SHDN GND INPUT 2.6V TO 5.5V VOLTAGE SELECT OUTPUT 0.75V TO VIN PGND C1 10 µF C4 0.47 µF R1 100 Ω C2 22 µF C3 1000pF L1 3.3 µH OUT INP IN 1.2A D1 D2 MAX1556 MAX1556A Figure 2. MAX1556 Typical Application Circuit Figure 1. Functional Diagram LX SS ON OFF SHDN GND INPUT 2.6V TO 5.5V VOLTAGE SELECT OUTPUT 0.75V TO VIN PGND C4 10 µF C5 22 µF C6 1000pF L2 4.7 µH OUT INP IN 600mA D1 D2 MAX1557 Figure 3. MAX1557 Typical Application Circuit PWM COMPARATOR ERROR AMPLIFIER CURRENT-LIMIT COMPARATOR 0.675V CURRENT SENSE SLOPE COMP CLOCK 1MHz INP LX PGND SS GND PWM AUTO SKIP CONTROL SKIP-OVER ENTER SKIP/ SR OFF VCS ZERO-CROSS DETECT SHORT-CIRCUIT PROTECTION REFERENCE 1.25V OUT D1 D2 SHDN IN BIAS OUTPUT VOLTAGE SELECTOR MAX1556 MAX1556A MAX1557 |
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