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MP28248 Datasheet(PDF) 5 Page - Monolithic Power Systems

Part No. MP28248
Description  High-Efficiency, Fast-Transient, 3A, 4.2V-20V Input Synchronous Step-down Converter in a QFN12 (2x3mm) Package
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Maker  MPS [Monolithic Power Systems]
Homepage  http://www.monolithicpower.com
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MP28248 Datasheet(HTML) 5 Page - Monolithic Power Systems

 
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MP28248 – 3A, 4.2V-20V INPUT, FAST-TRANSIENT SYNCHRONOUS STEP-DOWN CONVERTER IN QFN12 (2X3mm)
MP28248 Rev 1.0
www.MonolithicPower.com
5
1/5/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
TYPICAL CHARACTERISTICS
VIN=12V, Vout=1.2V, L=2μH, TA=+25°C,unless otherwise noted.
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
4
8
12
16
20
450
460
470
480
490
500
510
520
530
540
550
4
8
12
16
20
100
200
300
400
500
600
700
0
5
10
15
20
No Load Supply Current vs.
Input Voltage
Enable Supply Current vs.
Input Voltage
Disable Supply Current vs.
Input Voltage
4.7
4.8
4.9
5
5.1
5.2
5.3
510
15
20
IO=1.5A
IO=3A
IO=0A
VCC vs. Input Voltage
5
5.04
5.08
5.12
5.16
5.2
0 0.5
1
1.5
2
2.5
3
VCC vs. Io
400
410
420
430
440
450
460
470
480
4
8
12
16
20
Fs vs. Input Voltage
0
50
100
150
200
250
300
350
400
450
500
0
0.5
1
1.5
2
2.5
3
2.5
3
3.5
4
4.5
5
5.5
4
8
12
16
20
No Load
BST vs. Vin
Fs vs.Output Current
0
1
2
3
4
5
6
7
-40 -20 0
20
40
60
80 100
Vin=4.5V
Vin=12V
Vin=20V
Current Limit vs. Temperature
Full Load


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