New prod uc t ap7175, Operating waveforms, Ap7175 – Diodes AP7175 User Manual
Page 7: Power on, Power off, Load transient response, Over current protection
AP7175
Document number: DS35606 Rev. 3 - 2
7 of 14
December 2012
© Diodes Incorporated
NEW PROD
UC
T
AP7175
Power On
C
OUT
=10µF, C
IN
=10µF, R
L
=0.4
Ω
CH1: V
CNTL
, 5V/Div, DC
CH2: V
IN
, 1V/Div, DC
CH3: V
OUT
, 1V/Div, DC
CH4: V
POK
, 5V/Div, DC
TIME: 2ms/Div
V
IN
V
CNTL
V
OUT
V
POK
Power Off
C
OUT
=10µF, C
IN
=10µF, R
L
=0.4
Ω
CH1: V
CNTL
, 5V/Div, DC
CH2: V
IN
, 1V/Div, DC
CH3: V
OUT
, 1V/Div, DC
CH4: V
POK
, 5V/Div, DC
TIME: 2ms/Div
V
IN
V
CNTL
V
OUT
V
POK
Load Transient Response
I
OUT
= 10mA to 3A to10mA (rise / fall time =1µs)
C
OUT
= 10µF, C
IN
= 10µF
CH1: V
OUT
, 50mV/Div, AC
CH2: I
OUT
, 1A/Div, DC
TIME: 50µs/Div
V
OUT
I
OUT
Over Current Protection
C
OUT
= 10µF, C
IN
= 10µF, I
OUT
= 2A to 5.6A
CH1: V
OUT
, 0.5V/Div, DC
CH2: I
OUT
, 2A/Div, DC
TIME: 0.2ms/Div
V
OUT
I
OUT
Operating Waveforms
(@ V
CNTL
= 5V, V
IN
= 1.8V, V
OUT
= 1.2V, T
A
= +25°C, unless otherwise specified.)