APL5331 datasheet(9/23 Pages) ANPEC

9 / 23 page

Rev. B.4 - Mar., 2008

APL5331

www.anpec.com.tw

Operating Waveforms

1. Load Transient Response : I

OUT = +10mA -> +3A -> +10mA

- V

IN = 2.5V, VCNTL = 3.3V

- V

REF is 1.250V supplied by a regulator

- C

OUT = 470µF/10V, ESR = 30mΩ

- I

OUT slew rate = ±3A/µs

OUT = +10mA -> +3A

OUT

Ch1 : V

OUT, 20mV/Div, DC,

Offset = 1.250V

Ax1 : I

OUT, 1A/Div

Time : 1

µs/Div

Ch1 : V

OUT, 20mV/Div, DC,

Offset = 1.250V

Ax1 : I

OUT, 1A/Div

Time : 20

µs/Div

Ch1 : V

OUT, 20mV/Div, DC,

Offset = 1.250V

Ax1 : I

OUT, 1A/Div

Time : 1

µs/Div

OUT = +10mA -> +3A -> +10mA

OUT = +3A -> +10mA

OUT

+3A

+10mA

OUT

Load Regulation = -2.8mV

2. Load Transient Response : I

OUT = -10mA -> -3A -> -10mA

- V

IN = 2.5V, VCNTL = 3.3V

- V

REF is 1.250V supplied by a regulator

- C

OUT = 470µF/10V, ESR = 30mΩ

- I

OUT slew rate = ±3A/µs

OUT = -10mA -> -3A

OUT

Ch1 : V

OUT, 20mV/Div, DC,

Offset = 1.250V

Ax1 : I

OUT, 1A/Div

Time : 1

µs/Div

Ch1 : V

OUT, 20mV/Div, DC,

Offset = 1.250V

Ax1 : I

OUT, 1A/Div

Time : 20

µs/Div

Ch1 : V

OUT, 20mV/Div, DC,

Offset = 1.250V

Ax1 : I

OUT, 1A/Div

Time : 1

µs/Div

OUT = -10mA -> -3A -> -10mA

OUT = -3A -> -10mA

OUT

-3A

-10mA

OUT

Load Regulation = +6.2mV

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