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VRG8691-201-2S датащи(PDF) 3 Page - Aeroflex Circuit Technology |
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VRG8691-201-2S датащи(HTML) 3 Page - Aeroflex Circuit Technology |
3 / 10 page SCD8691 Rev H 11/12/13 Aeroflex Plainview 3 VRG8691/92 VIN VOUT VSENSE R1 R2 VREF (=1V) CURR. LIMIT 10 11 12 4 3 2 1 8 ENABLE 6 9 IADJ 7 5 0.1µF 47µF + VBIAS SLOW START VBIAS VIN CURR. LIMIT GND 0.1µF FIGURE 2 –SETTING OUTPUT VOLTAGE ENABLE 1/ Notes: 1/ ENABLE should be asserted after both VIN and VBIAS are applied. (See Application Note 3, Figure 5 for the configuration where a separate ENABLE control line is NOT required). 2/ ICL varies directly with VIN. (See Application Note 2 for adjusting the Current Limit, ICL). To set the output voltage for a particular Vout: - Choose an R2 value. (Recommended value = 1k - Then use the following formula to determine the value of R1. Table 1 shows example values for R1 and R2 to achieve some standard voltages. Table 2 shows the nominal current limit settings if the ’CURR. LIMIT’ function (pin 8) is left open. CLOAD 47µF VOUT + Table 2 2/ VIN ICL NOM 5V 11.5A 3.3V 7.5A 2.5V 5.7A 1.8V 4.1A Table 1 Example R1 & R2 for typical VOUT VOUT R2 R1 3.3V 1k 2.3k 2.5V 1k 1.5k 1.8V 1k 800 1.0V 1k 0 APPLICATION NOTE 1 BASIC SET-UP Setting the output voltage (VOUT): VOUT - VREF (R2 x IADJ) + VREF R1 = R2 x , where VREF = 1v, IADJ typ = 10pA 1µF TANT 1µF TANT CER CER |
Аналогичный номер детали - VRG8691-201-2S |
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Аналогичное описание - VRG8691-201-2S |
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