APW7300 데이터 시트보기 (PDF) - Anpec Electronics
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APW7300 Datasheet PDF : 20 Pages
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APW7300
Operating Waveforms
The test condition is VIN=12V, TA= 25oC unless otherwise specified.
Current Limit & Frequency
Foldback
VOUT
1
IL
1
Normal Operation in Heavy
Load
VOUT
IL
2
VLX
3
VIN =12V, VOUT =3.3V, COUT =22uF, L =10uH,
Ramp up IOUT into current limit
CH1: VEN, 5V/Div, DC
CH2: IL, 2A/Div, DC
CH3: VLX, 20V/Div, DC
TIME: 50µs/Div
2
V LX
3
VIN =12V, VOUT =3.3V, COUT =22uF, L =10uH,
IOUT =2A
CH1: VOUT, 2V/Div, DC
CH2: IL, 1A/Div, DC
CH3: VLX, 10V/Div, DC
TIME: 2µs/Div
Normal Operation in Light
Load
V OUT
VLX
1
2
IL
3
VIN =12V, VOUT =3.3V, COUT =22uF, L =10uH,
IOUT =100mA
CH1: VOUT, 2V/Div, DC
CH2: IL, 1A/Div, DC
CH3: VLX, 10V/Div, DC
TIME: 5µs/Div
Load Transient
VOUT
1
IOUT
2
VIN =12V, VOUT =3.3V, COUT =22uF, L =10uH,
COMP=6.8kΩ+3.9nF, IOUT =200mA-2A-200mA
CH1: VOUT, 0.5V/Div, offset=3.3V
CH2: IOUT, 2A/Div, DC
TIME: 50µs/Div
Copyright © ANPEC Electronics Corp.
8
Rev. A.2 - Apr., 2013
www.anpec.com.tw
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