NB675 –24V, HIGH CURRENT SYNCHRONOUS BUCK CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN =20V, VDDQ =1.35V, L=1.2µH, TJ=+25°C, unless otherwise noted.
Output Voltage Ripple Output Voltage Ripple
Power Good through
EN Start-Up
I
= 0A
I
= 10A
OUT
OUT
I
= 0A
OUT
V
V
DDQ
DDQ
50mV/div.
50mV/div.
V
DDQ
500mV/div.
V
EN2
5V/div.
PG
5V/div.
V
V
V
SW
SW
10V/div.
10V/div.
I
L
I
I
1A/div.
L
L
10A/div.
1A/div.
Power Good through
EN Start-Up
Start-Up through V
Start-Up through V
IN
IN
I
= 0A
I
= 10A
OUT
OUT
I
= 10A
OUT
V
DDQ
V
V
500mV/div.
DDQ
DDQ
500mV/div.
500mV/div.
V
EN2
5V/div.
PG
5V/div.
V
V
IN
V
IN
10V/div.
10V/div.
V
V
SW
SW
10V/div.
10V/div.
I
I
L
L
5A/div.
I
10A/div.
L
10A/div.
Shutdown through V
Shutdown through V
Start-Up through EN
IN
IN
I
= 0A
I
= 10A
I
= 0A
OUT
OUT
OUT
V
V
V
DDQ
DDQ
DDQ
1V/div.
1V/div.
1V/div.
V
V
V
IN
IN
EN2
10V/div.
5V/div.
5V/div.
SW
20V/div.
V
V
V
SW
SW
5V/div.
2V/div.
I
I
L
L
2A/div.
2A/div.
I
L
5A/div.
NB675 Rev. 1.0
1/14/2013
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
7
MPS [ MONOLITHIC POWER SYSTEMS ]
