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MP2012DQ-LF-P
P1-P3
P4-P6
P7-P9
P10-P10
MP2012 – 1.5A SYNCHRONOUS STEP-DOWN CONVERTER
MP2012 Rev. 1.01
www.MonolithicPower.com
4
9/22/2011
MPS Proprietary Information. Patent Protec
ted. Unauthorized Photo
copy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
TYPICAL PERFORMANC
E CHARACTERISTICS
V
IN
= 5V, V
OUT
= 1.8V, L=3.3uH, T
A
= +25ºC, unless otherwise noted.
Load
Regulation
Enable
Supply
Curr
ent v
s.
Input V
oltage
500
550
600
650
700
750
800
850
2.5
3
3.5
4
4.5
5
5.5
6
V
IN
(V)
C
a
se T
em
p
er
a
t
u
r
e R
i
sev
s.
Ou
t
p
u
t
C
u
r
r
e
n
t
0
5
10
15
20
25
30
35
0
0.5
1
1.5
O
UTPUT CURR
E
NT (A)
D
U
T
Y CYCLE
Peak Cu
rrent
vs. Du
ty
LI
NE
R
E
GUL
A
TI
ON
L
OAD REGU
LATIO
N
L
OAD CURRENT(A)
INPUT VOLTA
GE
(V
)
Li
ne
R
e
gula
tion
-0.4
%
-0.3
%
-0.2
%
-0.1
%
0.0%
0.1
%
00
.
5
11
.
5
PEAK CURRENT(A)
-0.60%
-0.40%
-0.20%
0.00%
0.20%
0.40%
2
2.5
3
3.5
4
4.5
5
5.5
6
Io
=
0
A
I
o=0.75A
I
o=1.5A
Vin=3V
Vin=5V
E
f
f
icie
n
cy vs.
Loa
d Cur
r
e
nt
LOA
D CURR
E
NT(A)
EFFICIENCY (%)
0
10
20
30
40
50
60
70
80
90
100
0
0
.3
0.6
0
.9
1
.2
1
.5
Vi
n
=
5
V
Vi
n
=
3V
1.
5
2
2.
5
3
3.
5
4
4.
5
40%
50%
60%
70%
80%
90%
100%
MP2012 – 1.5A SYNCHRONOUS STEP-DOWN CONVERTER
MP2012 Rev. 1.01
www.MonolithicPower.com
5
9/22/2011
MPS Proprietary Information. Patent Protec
ted. Unauthorized Photo
copy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
TYPICAL PERFORMANC
E CHARACTERISTICS
V
IN
= 5V, V
OUT
= 1.8V, L=3.3uH, T
A
= +25ºC, unless otherwise noted.
Input Ripple V
oltage
V
IN
50mV/div
Short Entry
Full Load
EN Start Up without Load
Short Recovery
No Load
Power Up without Load
Power Up with 1.5A
Load
SW
2V/div
V
OUT
2V/div
V
IN
10V/div
EN
2V/div
I
INDUCTOR
2A/div
SW
5V/div
V
OUT
1V/div
V
IN
5V/div
I
INDUCTOR
1A/div
SW
5V/div
V
OUT
1V/div
I
INDUCTOR
1A/div
SW
5V/div
V
OUT
1V/div
V
IN
10V/div
I
INDUCTOR
2A/div
SW
5V/div
V
OUT
1V/div
V
IN
5V/div
I
INDUCTOR
1A/div
EN Start up with 1.5A
Load
EN
2V/div
SW
5V/div
V
OUT
1V/div
I
INDUCTOR
1A/div
SW
2V/div
400ns/div
400ns/div
400us/div
Output Ripple V
oltage
SW
2V/div
V
OUT
20mV/div
I
INDUCTOR
2A/div
Load T
ransient Response
I
OUT
=0.75A-1.5A
Step @ 1A/us
V
OUT
20mV/div
I
OUT
500mA/div
MP2012 – 1.5A SYNCHRONOUS STEP-DOWN CONVERTER
MP2012 Rev. 1.01
www.MonolithicPower.com
6
9/22/2011
MPS Proprietary Information. Patent Protec
ted. Unauthorized Photo
copy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
FUNCTION BLOCK DIAGRAM
Figure 1
―
Function Block Diagram
P1-P3
P4-P6
P7-P9
P10-P10
MP2012DQ-LF-P
Mfr. #:
Buy MP2012DQ-LF-P
Manufacturer:
Monolithic Power Systems (MPS)
Description:
Switching Voltage Regulators 1.5A, 6V, 1.2Mhz Sync Step-Down
Lifecycle:
New from this manufacturer.
Delivery:
DHL
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Ups
TNT
EMS
Payment:
T/T
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