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MP2120DQ-LF-Z Datasheet, PDF (1/11 Pages) MPS Industries, Inc. – 2.5A, 5.5V Synchronous Step-Down Switching Regulator | |||
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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 80m⦠high-side
switch and a 60m⦠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
FB
GND
C3
10nF 1.2
MP2120
2.5A, 5.5V Synchronous
Step-Down Switching Regulator
FEATURES
ï· 2.5A Output Current
ï· Input Operation Range: 2.7V to 5.5V
ï· All Ceramic Capacitor Design
ï· Up to 95% Efficiency
ï· 1.5MHz Fixed Switching Frequency
ï· Adjustable Output from 0.8V to 0.9xVIN
ï· Internal Soft-Start
ï· Frequency Synchronization Input
ï· Power Good Output
ï· Cycle-by-Cycle Current Limiting
ï· Hiccup Short Circuit Protection
ï· Thermal Shutdown
ï· 3mm x 3mm 10-lead QFN Package
APPLICATIONS
ï· ÂµP/ASIC/DSP/FPGA Core and I/O Supplies
ï· Printers and LCD TVs
ï· Network and Telecom Equipment
ï· Point of Load Regulators
âMPSâ and âThe Future of Analog IC Technologyâ 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
www.MonolithicPower.com
1
9/7/2011
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
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