MP2107/MP2107A – 4A, 6V SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
= 5V, V
CC
= 5V (MP2107A Only), V
O
= 1.8V, L1 = 1.0µH, C2 = 47µF, T
A
= +25°C, unless otherwise noted.
Steady State Operation
Steady State Operation
No Load
V
OUT
10mV/div.
Half Load
V
OUT
10mV/div.
I
INDUCTOR
1A/div.
I
INDUCTOR
2A/div.
V
SW
5V/div.
V
SW
5V/div.
400ns/div.
400ns/div.
Steady State Operation
Full Load
V
OUT
10mV/div.
Load Transient
1A-4A Step Resistive Load
V
OUT
200mV/div.
I
INDUCTOR
2A/div.
V
SW
5V/div.
I
INDUCTOR
1A/div.
400ns/div.
Start-up through Enable
No Load
Start-up through Enable
Full Load
V
OUT
1V/div.
V
POK
2V/div.
V
OUT
1V/div.
V
POK
2V/div.
V
EN
2V/div.
V
EN
2V/div.
MP2107/MP2107A Rev. 1.1
www.MonolithicPower.com
10/13/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
5
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