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PDF MP2120 Data sheet ( Hoja de datos )
| Número de pieza | MP2120 | |
| Descripción | 5.5V Synchronous Step-Down Switching Regulator | |
| Fabricantes | MPS | |
| Logotipo |  |
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The Future of Analog IC Technology
DESCRIPTION
The MP2120 is an internally compensated
1.5MHz fixed frequency PWM synchronous
step-down regulator. MP2120 operates from a
2.7V to 5.5V input and generates an output
voltage as low as 0.8V.
The MP2120 integrates an 80mΩ high-side
switch and a 60mΩ synchronous rectifier for
high efficiency without an external Schottky
diode. With peak current mode control and
internal compensation, the MP2120 based
solution delivers a very compact footprint with a
minimum component count.
The MP2120 is available in a small 3mm x 3mm
10-lead QFN package.
TYPICAL APPLICATION
VIN
POK
OFF ON
IN
POK
BS
SW
MP2120
EN/SYNC
GND
FB
C3
10nF 1.2
MP2120
2.5A, 5.5V Synchronous
Step-Down Switching Regulator
FEATURES
2.5A Output Current
Input Operation Range: 2.7V to 5.5V
All Ceramic Capacitor Design
Up to 95% Efficiency
1.5MHz Fixed Switching Frequency
Adjustable Output from 0.8V to 0.9xVIN
Internal Soft-Start
Frequency Synchronization Input
Power Good Output
Cycle-by-Cycle Current Limiting
Hiccup Short Circuit Protection
Thermal Shutdown
3mm x 3mm 10-lead QFN Package
APPLICATIONS
µP/ASIC/DSP/FPGA Core and I/O Supplies
Printers and LCD TVs
Network and Telecom Equipment
Point of Load Regulators
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
VOUT
1.8V / 2.5A
Efficiency vs.
Output Current
95
90
85 5V to 1.8V 5V to 3.3V
5V to 2.5V
80
75
70
0 0.5 1 1.5 2 2.5
OUTPUT CURRENT (A)
MP2120 Rev. 0.92
9/7/2011
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
1
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1 page  
MP2120 – 2.5A, 5.5V SYNCHRONOUS STEP-DOWN CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS(continued)
VIN = 5V, VOUT = 1.8V, TA = +25ºC, unless otherwise noted.
Start Up through Enable
Full Load
Shut Down through Enable
No Load
Shut Down through Enable
Full Load
VOUT
1V/div.
VPOK
2V/div.
VEN
2V/div.
VOUT
1V/div.
2VV/dEiNv.
VOUT
2V/div.
VEN
5V/div.
VPOK
5V/div.
VPOK
2V/div.
v
400ms/div
1ms/div
Short Circut Protection
VIN=5V,VOUT=1.8V
Short Circuit Recovery
VIN=5V,VOUT=1.8V
VOUT
1V/div.
VSW
5V/div.
Inductor
2A/div.
400 s/div
VOUT
1V/div.
VSW
5V/div.
Inductor
1A/div.
1ms/div
MP2120 Rev. 0.92
9/7/2011
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
5
Free Datasheet http://www.datasheet4u.com/
5 Page 
MP2120 – 2.5A, 5.5V SYNCHRONOUS STEP-DOWN CONVERTER
PACKAGE INFORMATION
PIN 1 ID
MARKING
2.90
3.10
PIN 1 ID
INDEX AREA
3mm x 3mm QFN10
0.30
0.50
0.18
0.30
10
2.90
3.10
0.50
BSC
6
1.45
1.75
PIN 1 ID
SEE DETAIL A
1
2.25
2.55
5
TOP VIEW
BOTTOM VIEW
0.20 REF
SIDE VIEW
0.80
1.00
0.00
0.05
PIN 1 ID OPTION A
R0.20 TYP.
PIN 1 ID OPTION B
R0.20 TYP.
DETAIL A
0.70
0.25
0.50
2.90
1.70
NOTE:
1) ALL DIMENSIONS ARE IN MILLIMETERS.
2) EXPOSED PADDLE SIZE DOES NOT INCLUDE MOLD FLASH.
3) LEAD COPLANARITY SHALL BE 0.10 MILLIMETER MAX.
4) DRAWING CONFORMS TO JEDEC MO-229, VARIATION VEED-5.
5) DRAWING IS NOT TO SCALE.
2.50
RECOMMENDED LAND PATTERN
NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third
party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not
assume any legal responsibility for any said applications.
MP2120 Rev. 0.92
9/7/2011
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
11
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet MP2120.PDF ] | |
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