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AS3729 Datasheet(PDF) 6 Page - ams AG |
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AS3729 Datasheet(HTML) 6 Page - ams AG |
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6 / 19 page  Page 6 ams Datasheet Document Feedback [v1-24] 2015-Aug-13 AS3729 − Parameters Figure 7: Step Down DCDC Power Stage External Components Figure 8: 3.7V Efficiency vs. Output Current Combined Mode Symbol Parameter Min Typ Max Units Note External Components Per Phase CFB Output capacitor 40 47 μF Ceramic X5R or X7R, high performance 20 22 μF Ceramic X5R or X7R, cost optimized CVSUP Input capacitor 6 10 μF Ceramic X5R or X7R L Inductor 0.3 0.47 μH 3A rated, 3MHz operation, low RON AS3729 Step Down DCDC: Shows the Efficiency of AS3729 with VSUP = 3.7V, 1.5MHz operation, TA = 25°C and Coilcraft XAL5030-601MEB coil Parameters 40 45 50 55 60 65 70 75 80 85 90 95 0,001 0,01 0,1 1 10 Output Current (A) 1.5V 1.2V 1.0V 1.5V, low noise 1.2V, low noise 1.0V, low noise |
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