MC34726BFC(2008) 查看數據表（PDF） - Freescale Semiconductor

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MC34726BFC
(Rev.:2008)

300mA High Efficiency Low Quiescent Current Synchronous Buck Regulator With Z-mode

Freescale Semiconductor 

ELECTRICAL CHARACTERISTICS

ELECTRICAL PERFORMANCE CURVES

Time: 500ns/DIV

VOUT (1V/DIV)

VSW (2V/DIV)

Time: 200µs/DIV

VOUT (AC Coupled, 200mV/DIV)

VSW (2V/DIV)

IL (200mA/DIV)

Figure 10. CCM Switching Waveforms

VIN = 3.6V, VOUT = 1.8V and ILOAD = 150mA

Time: 200µs/DIV

VOUT (AC Coupled, 500mV/DIV)

VSW (2V/DIV)

ILOAD (100mA/DIV)

ILOAD (200mA/DIV)

Figure 12. Load Transient in Z-ModeTM

VIN = 3.6V, ILOAD =10mA to 300mA

Time: 200µs/DIV

VOUT (AC Coupled, 50mV/DIV)

VSW (2V/DIV)

ILOAD (100mA/DIV)

Figure 11. Load Transient in Sleepy Z-ModeTM

VIN = 3.6V, ILOAD =1mA to 150mA

Figure 13. Load Transient in CCM

VIN = 3.6V, ILOAD = 150mA to 300mA

Analog Integrated Circuit Device Data

Freescale Semiconductor

34726

9

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