MPQ8612
―
12A/16A/20A, 6V, SYNCHRONOUS STEP-DOWN CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS
(continued)
Performance waveforms are tested on the evaluation board of the Design Example section.
MPQ8612GL-12, V
IN
=5V, V
OUT
=1.2V, L=1.0µH, T
A
=+25°C, unless otherwise noted.
Dead Time (on)
I
OUT
=12A
Dead Time Off
I
OUT
=12A
Input/Output Voltage Rippl
I
OUT
= 0A
V
SW
200mV/div.
V
SW
1V/div.
V
OUT
AC Coupled
20mV/div.
V
IN
AC Coupled
10mV/div.
V
SW
5V/div.
I
L
2.5A/div.
Input/Output Voltage Ripple
I
OUT
= 0.4A
Input/Output Voltage Ripple
I
OUT
= 12A
Power Good Through Vin
Start-Up
I
OUT
= 12A
V
OUT
AC Coupled
10mV/div.
V
IN
AC Coupled
10mV/div.
V
SW
5V/div.
I
L
1A/div.
V
OUT
AC Coupled
10mV/div.
V
IN
AC Coupled
100mV/div.
V
SW
5V/div.
V
OUT
1V/div.
V
IN
2V/div.
V
PG
1V/div.
I
L
10A/div.
Power Good Through Vin
Shutdown
I
OUT
= 12A
Power Good Through EN
Start-Up
I
OUT
= 12A
Power Good Through EN
Shutdown
I
OUT
= 12A
V
OUT
1V/div.
V
OUT
1V/div.
V
OUT
1V/div.
V
EN
5V/div.
V
PG
5V/div.
V
IN
2V/div.
V
PG
2V/div.
V
EN
5V/div.
V
PG
5V/div.
MPQ8612 Rev. 1.11
www.MonolithicPower.com
10/22/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
10
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