APW7120A 查看數據表（PDF） - Anpec Electronics

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APW7120A

5V to 12V Supply Voltage, 8-PIN, Synchronous Buck PWM Controller

Anpec Electronics 

APW7120A

Operating Waveforms

(Refer to the typical application circuit, VBAIS=VIN=+12V supplied by an ATX Power Supply)

1. Load Transient Response : IOUT = 0A -> 15A -> 0A

-

I

OUT

slew

rate

=

±7.5A/µs

IOUT = 0A -> 15A

IOUT = 0A -> 15A -> 0A

IOUT = 15A -> 0A

VOUT=1.8V

VOUT

VOUT

1

1

1

VOUT

VUGATE

VUGATE

VUGATE

3

3

3

15A

IOUT

2

2

0A

IOUT

2

IOUT

Ch1 : VOUT, 100mV/Div, AC,

Ch2 : IOUT, 10A/Div

Ch3 : VUGATE, 20V/Div, DC

Time : 5µs/Div

BW = 20 MHz

Ch1 : VOUT, 100mV/Div, AC,

Ch2 : IOUT, 10A/Div

Ch3 : VUGATE, 20V/Div, DC

Time : 40µs/Div

BW = 20 MHz

Ch1 : VOUT, 100mV/Div, AC,

Ch2 : IOUT, 10A/Div

Ch3 : VUGATE, 20V/Div, DC

Time : 5µs/Div

BW = 20 MHz

2. UGATE and LGATE Switching Waveforms

Rising VUGATE

IOUT = 15A

VLGATE

VUGATE

Falling VUGATE

VUGATE

VLGATE

1,2

1,2

Ch1 : VUGATE, 5V/Div, DC Ch2 : VLGATE, 2V/Div, DC

Time : 20ns/Div

BW = 500 MHz

Ch1 : VUGATE, 5V/Div, DC Ch2 : VLGATE, 2V/Div, DC

Time : 20ns/Div

BW = 500 MHz

Copyright © ANPEC Electronics Corp.

6

Rev. A.3 - Nov., 2009

www.anpec.com.tw

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