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MC34727AFCR2 Scheda tecnica(PDF) 7 Page - Freescale Semiconductor, Inc |
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MC34727AFCR2 Scheda tecnica(HTML) 7 Page - Freescale Semiconductor, Inc |
7 / 19 page Analog Integrated Circuit Device Data Freescale Semiconductor 7 MC34727 ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS Table 5. Dynamic Electrical Characteristics Characteristics noted under conditions; 2.7V ≤ VIN ≤ 5.5V, 0.8V ≤ VOUT ≤ 3.3V, -25oC ≤ TA ≤ 85oC, CIN = COUT = 4.7µF, L1 = 4.7 µH(See Figure 1), unless otherwise noted. The typical specifications are measured at the following conditions; TA = +25oC, VIN = 3.6V, fSW = 2.0MHz with the typical operating circuit (See Figure 1), unless otherwise noted. Characteristic Symbol Min Typ Max Unit Switching Frequency(7) fSW 1.8 2.0 2.2 MHz Maximum Duty Cycle(8) Measured from SW pin DMAX 95 - 100 % Internal Soft-start Timer VOUT Rise Time tS - 2.0 - ms Notes 7. fSW can be factory programmed to ±20% of nominal 2.0MHz. 8. The maximum duty limits the range of output voltages achievable for a given input voltage. |
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Descrizione simile - MC34727AFCR2 |
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