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MP1474DJ-LF-P

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
MP1474 – SYNCHRONOUS STEP-DOWN CONVERTER
MP1474 Rev. 1.0 www.MonolithicPower.com 4
9/26/2012 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
TYPICAL CHARACTERISTICS
V
IN
= 12V, V
OUT
= 3.3V, L=5.5μH, T
A
= 25°C, unless otherwise noted.
4 6 8 10 12 14 16 18
INPUT VOLTAGE(V)
2.5
2.8
3.1
3.4
3.7
4
4.3
25 30 35 40 45 50 55 60 65 70 75
Load Regulation
V
IN
=5-16V, I
OUT
=0-2A
Peak Current
vs. Duty Cycle
Disabled Supply Current
vs. Input Voltage
V
EN
=0V
Enabled Supply Current
vs. Input Voltage
V
FB
=1V
Line Regulation
V
IN
=5V-16V
OUTPUT CURRENT (A) INPUT VOLTAGE(V)
PEAK CURRENT (A)
INPUT VOLTAGE(V)
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0 0.4 0.8 1.2 1.6 2
V
IN
=12V
V
IN
=16V
V
IN
=5V
-0.5
-0.3
-0.1
0.1
0.3
0.5
5678910111213141516
I
OUT
=0A
I
OUT
=1A
I
OUT
=2A
-10
-7
-4
-1
2
5
8
11
14
17
20
0 5 10 15 20
400
450
500
550
600
650
700
750
800
MP1474 – SYNCHRONOUS STEP-DOWN CONVERTER
MP1474 Rev. 1.0 www.MonolithicPower.com 5
9/26/2012 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
Performance waveforms are tested on the evaluation board of the Design Example section.
V
IN
= 12V, V
OUT
= 3.3V, L=5.5μH, T
A
= 25°C, unless otherwise noted.
OUTPUT CURRENT (A)OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
Short Recovery
I
OUT
=0A
Startup through Enable
I
OUT
=0A
Short Entry
I
OUT
=0A
OUTPUT CURRENT (A)OUTPUT CURRENT (A)
0
3
6
9
12
15
18
00.511.52
OUTPUT CURRENT (A)
Case Temperature Rise
vs. Output Current
I
OUT
=0A-2A
50
55
60
65
70
75
80
85
90
95
100
0.0 0.4 0.8 1.2 1.6 2.0
V
IN
=5V
V
IN
=12V
V
IN
=16V
50
55
60
65
70
75
80
85
90
95
100
0.0 0.4 0.8 1.2 1.6 2.0
V
IN
=5V
V
IN
=12V
V
IN
=16V
50
55
60
65
70
75
80
85
90
95
100
0.0 0.4 0.8 1.2 1.6 2.0
V
IN
=5V
V
IN
=12V
V
IN
=16V
50
55
60
65
70
75
80
85
90
95
100
0.0 0.4 0.8 1.2 1.6 2.0
V
IN
=16V
V
IN
=12V
50
55
60
65
70
75
80
85
90
95
100
0.0 0.4 0.8 1.2 1.6 2.0
V
IN
=7V
V
IN
=12V
V
IN
=16V
V
OUT
2V/div.
V
PG
5V/div.
V
SW
10V/div.
V
IN
10V/div.
I
INDUCTOR
5A/div.
V
OUT
2V/div.
V
PG
5V/div.
V
SW
10V/div.
V
IN
10V/div.
I
INDUCTOR
5A/div.
V
OUT
2V/div.
V
PG
5V/div.
V
SW
10V/div.
V
EN
5V/div.
I
INDUCTOR
2A/div.
V
IN
=5V
MP1474 – SYNCHRONOUS STEP-DOWN CONVERTER
MP1474 Rev. 1.0 www.MonolithicPower.com 6
9/26/2012 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Performance waveforms are tested on the evaluation board of the Design Example section.
V
IN
= 12V, V
OUT
= 3.3V, L=5.5μH, T
A
= 25°C, unless otherwise noted.
Startup through Enable
I
OUT
=2A
Shutdown through
Enable
I
OUT
=0A
Shutdown through
Enable
I
OUT
=2A
Startup through Input
Voltage
I
OUT
=0A
Startup through Input
Voltage
I
OUT
=2A
Shutdown through
Input Voltage
I
OUT
=0A
Shutdown through
Input Voltage
I
OUT
=2A
Input / Output Ripple
I
OUT
=2A
V
SW
10V/div.
I
OUT
1A/div.
V
IN/
AC
200mV/div.
V
OUT
/AC
20mV/div.
V
OUT
/AC
50mV/div.
I
L
2A/div.
V
EN
5V/div.
V
SW
10V/div.
V
OUT
2V/div.
V
PG
5V/div.
I
INDUCTOR
2A/div.
V
IN
5V/div.
V
SW
5V/div.
V
OUT
2V/div.
V
PG
5V/div.
I
INDUCTOR
2A/div.
V
IN
5V/div.
V
SW
5V/div.
V
OUT
2V/div.
V
PG
5V/div.
I
INDUCTOR
2A/div.
V
IN
5V/div.
V
SW
5V/div.
V
OUT
2V/div.
V
PG
5V/div.
I
INDUCTOR
2A/div.
V
IN
5V/div.
V
SW
5V/div.
V
OUT
2V/div.
V
PG
5V/div.
I
INDUCTOR
2A/div.
V
EN
5V/div.
V
SW
10V/div.
V
OUT
2V/div.
V
PG
5V/div.
I
INDUCTOR
2A/div.
V
EN
5V/div.
V
SW
10V/div.
V
OUT
2V/div.
V
PG
5V/div.
I
INDUCTOR
2A/div.
Load Transient Reponse
I
OUT
=1A-2A
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

MP1474DJ-LF-P

Mfr. #:
Buy MP1474DJ-LF-P
Manufacturer:
Monolithic Power Systems (MPS)
Description:
Switching Voltage Regulators 2A, 16V, 500kHz Sync, Stp-Dwn Cnvrtr
Lifecycle:
New from this manufacturer.
Delivery:
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