APL5331 datasheet(10/23 Pages) ANPEC

10 / 23 page

Rev. B.4 - Mar., 2008

APL5331

www.anpec.com.tw

Operating Waveforms (Cont.)

3. Load Transient Response : I

OUT = +3A -> -3A -> +3A

- 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 = +3A -> -3A

Ch1 : V

OUT, 50mV/Div, DC,

Offset = 1.250V

Ax1 : I

OUT, 2A/Div

Time : 1

µs/Div

Ch1 : V

OUT, 50mV/Div, DC,

Offset = 1.250V

Ax1 : I

OUT, 2A/Div

Time : 20

µs/Div

Ch1 : V

OUT, 50mV/Div, DC,

Offset = 1.250V

Ax1 : I

OUT, 2A/Div

Time : 1

µs/Div

OUT = +3A -> -3A -> +3A

OUT = -3A -> +3A

OUT

+3A

-3A

OUT

4. Short-Circuit Test

- V

IN = 2.5V, VCNTL = 3.3V

OUT is Shorted to GND

OUT

Ch1 : V

OUT, 500mV/Div, DC,

Ax1 : I

OUT, 2A/Div

Time : 5ms/Div

Ch1 : V

OUT, 500mV/Div, DC,

Ax1 : I

OUT, 2A/Div

Time : 5ms/Div

OUT is Shorted to VIN (2.5V)

OUT

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