AN727 Просмотр технического описания (PDF) - Vishay Semiconductors

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AN727

High-Frequency, High-Efficiency Buck Converter Design For Multi-Cell Battery Configured Systems Using Si9167

Vishay Semiconductors 

AN727

Vishay Siliconix

VIN = 7.2 V, VO = 3.6 V, IO = 150 mA

Ch1: VOUT (50 mV/div)

Ch3: Coil (5 V/div)

FIGURE 10. PSM Output Ripple

VIN = 7.2 V, VO = 3.6 V, IO = 600 mA

Ch1: VOUT (10 mV/div)

Ch3: Coil (5 V/div)

FIGURE 11. PWM Output Ripple

VIN = 7.2 V, VO = 3.6 V, Step IO = 0 to 150 mA

Step Load Slew Rate = 1 A/msec

Ch1: VOUT (50 mV/div)

Ch2: IOUT (100 mA/div)

Document Number: 70959

07-Jul-99

FIGURE 12. Transient Response PSM Mode

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