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MP28259 Datasheet(PDF) 5 Page - Monolithic Power Systems

Part # MP28259
Description  High Efficiency, Fast Transient, 2A, 4.2V-20V Input Synchronous Step-down Converter in QFN12
PDF  18 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP28259 Datasheet(HTML) 5 Page - Monolithic Power Systems

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MP28259 – 2A, 4.2V-20V INPUT, FAST TRANSIENT SYNCHRONOUS STEP-DOWN CONVERTER
MP28259 Rev. 1.34
www.MonolithicPower.com
5
4/27/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 12V, VOUT = 1.2V, L = 2μH, TA = 25°C, unless otherwise noted.
Line Regulation
IOUT=2A
Load Regulation
IOUT (A)
IOUT (A)
IOUT (A)
VIN (V)
IOUT (A)
IOUT (A)
VIN (V)
Efficiency vs.
Load Current
FSW=500kHz
50
55
60
65
70
75
80
85
90
95
0.01
0.1
1
10
70
75
80
85
90
95
100
0.01
0.1
1
10
-1.2
-1
-0.8
-0.6
-0.4
-0.2
0
57
9 11 13 15 17 19 21
-2
-1.5
-1
-0.5
0
0.5
0
0.5
1
1.5
2
0
2
4
6
8
10
12
14
0
0.5
1
1.5
2
0
5
10
15
20
0
0.5
1
1.5
2
360
380
400
420
440
460
480
500
-40 -20 0 20 40 60 80 100 120 140
400
420
440
460
480
500
5
9
13
17
21
VIN=5V
VIN=12V
VIN=16V
VIN=12V
VIN=16V
VIN=8V
VIN=12V
VIN=12V
VIN=12V
VOUT VS. IOUT
VOUT=1.2V, Freq=500kHz
1.1
1.12
1.14
1.16
1.18
1.2
1.22
1.24
0.01
0.1
1
10
IOUT(A)
VIN=12V
VIN=16V
VIN=8V
VIN=5V



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