NB650/NB650H – 6A, 28V, FAST-TRANSIENT, SYNCHRONOUS STEP-DOWN CONVERTERS
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN=12V, VOUT =1.05V, L=1µH, TA=+25°C, unless otherwise noted.
Start-Up Through EN
Start-Up Through EN
Shutdown Through EN
I
= 0A
I
= 6A
I
= 0A
OUT
OUT
OUT
V
V
OUT
500mV/div.
OUT
V
OUT
500mV/div.
500mV/div.
V
EN
5V/div.
V
V
EN
EN
5V/div.
5V/div.
V
V
V
SW
SW
SW
10V/div.
10V/div.
10V/div.
I
L
I
L
2A/div.
I
2A/div.
L
10A/div.
Shutdown Through EN
Short Circuit Protection
NB650, Latch-Off Version
OCP Protection
NB650, Latch-Off Version
I
= 6A
OUT
V
V
V
OUT
OUT
OUT
500mV/div.
500mV/div.
500mV/div.
V
SW
V
EN
10V/div.
5V/div.
V
SW
10V/div.
V
SW
10V/div.
I
I
I
L
L
L
5A/div.
5A/div.
10A/div.
VID On-the-fly
VID On-the-fly
I
= 0.3A
I
= 6A
OUT
OUT
F
V
= 1kHz, F
= 0.5kHz,
= 1.05V/1.1V/1.15V/1.2V
F
V
= 1kHz, F
= 0.5kHz,
= 1.05V/1.1V/1.15V/1.2V
VID1
VID2
VID1 VID2
OUT
OUT
VID1
V
(AC)
VID1
OUT
5V/div.
50mV/div.
5V/div.
VID2
VID2
5V/div.
5V/div.
V
SW
10V/div.
V
(AC)
V
(AC)
OUT
100mV/div.
OUT
100mV/div.
I
L
5A/div.
NB650/NB650H Rev. 1.12
10/11/2012
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
7
MPS [ MONOLITHIC POWER SYSTEMS ]
