APL5537 datasheet(6/16 Pages) ANPEC

6 / 16 page

Rev. A.7 - Oct., 2011

www.anpec.com.tw

APL5537

Operating Waveforms (Cont.)

Refer to the typical application circuit. The test condition is V

IN=VEN=4.2V, TA= 25

oC. Unless otherwise specified.

Line Transient Response

CH1: V

IN, 500mV/Div, DC, Offset=3.8V

TIME:100

µs/Div

IN=COUT=1µF, IOUT1=IOUT2=10mA

CH2: V

OUT1, 20mV/Div, DC, Offset=3.0V

CH3: V

OUT2, 20mV/Div, DC, Offset=1.8V

IN=3.8V to 4.8V to 3.8V (rise / fall time = 4µs)

OUT1

OUT2

Line Transient Response

OUT1

OUT2

CH1: V

IN, 500mV/Div, DC, Offset=3.8V

TIME:100

µs/Div

IN=COUT=1µF, IOUT1=IOUT2=50mA

CH2: V

OUT1, 20mV/Div, DC, Offset=3.0V

CH3: V

OUT2, 20mV/Div, DC, Offset=1.8V

IN=3.8V to 4.8V to 3.8V (rise / fall time = 4µs)

OUT1

OUT2

Line Transient Response

Load Transient Response

CH1: V

IN, 500mV/Div, DC, Offset=3.8V

TIME:100

µs/Div

IN=COUT=1µF, IOUT1=IOUT2=100mA

CH2: V

OUT1, 20mV/Div, DC, Offset=3.0V

CH3: V

OUT2, 20mV/Div, DC, Offset=1.8V

IN=3.8V to 4.8V to 3.8V (rise / fall time = 4µs)

CH1: I

OUT, 50mA/Div, DC

TIME:40

µs/Div

IN=COUT=1µF, VIN=VEN=4.2V

CH2: V

OUT1, 20mV/Div, DC, Offset=3.0V

CH3: V

OUT2, 20mV/Div, DC, Offset=1.8V

OUT=10mA to 50mA to 10mA (rise / fall time = 1 µs)

OUT1

OUT2

OUT

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