APW7143 查看數據表（PDF） - Anpec Electronics

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APW7143

3A, 12V, Asynchronous Buck Converter

Anpec Electronics 

APW7143

Operating Waveforms (Cont.)

(Refer to the application circuit 1 in the section “Typical Application Circuits”, VIN=12V, VOUT=3.3V, L1=4.7µH )

Load Transient Response

IOUT= 50mA-> 3A ->50mA

IOUT rising/falling time=10µs

1

VOUT

Load Transient Response

IOUT= 0.5A-> 3A ->0.5A

IOUT rising/falling time=10µs

1

VOUT

IL1

2

CH1 : VOUT , 200mV/div

CH2 : IL1 , 2A/div

Time : 100µs/div

IL1

2

CH1 : VOUT , 100mV/div

CH2 : IL1 , 2A/div

Time : 100µs/div

Switching Waveform

IOUT=0.2A

VLX

1

IL1

2

CH1 : VLX , 5V/div

CH2 : IL1 , 2A/div

Time : 1µs/div

Switching Waveform

VLX

IOUT=3A

1

IL1

2

CH1 : VLX , 5V/div

CH2 : IL1 , 2A/div

Time : 1µs/div

Copyright © ANPEC Electronics Corp.

8

Rev. A.1 - Apr., 2008

www.anpec.com.tw

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