MP2107 Datasheet, PDF (1/14 Pages) Monolithic Power Systems – 4A, 6V Synchronous Step-Down Switching Regulator

The Future of Analog IC Technology
DESCRIPTION
The MP2107 is an internally compensated
1.5MHz fixed-frequency PWM synchronous
step-down regulator. MP2107 operates from a
2.7V to 6V input and generates an output
voltage as low as 0.8V.
The MP2107 integrates a 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 MP2107 based
solution delivers a very compact footprint with a
minimum component count.
The MP2107 is available in a small 3mm x 3mm
10-pin QFN package and the MP2107A is
available in an 8-pin SOIC package with an
exposed pad.
TYPICAL APPLICATION
V_IN
5V
POK
(MP2107)
OFF ON
IN
POK
BS
SW
EN/SYNC
FB
GND
C3
100nF
MP2107/MP2107A
4A, 6V Synchronous
Step-Down Switching Regulator
FEATURES
• 4A Output Current
• Input Operation Range: 2.7V to 6V
• 60mΩ Internal Power MOSFET Switches
• All Ceramic Capacitor Design
• Up to 95% Efficiency
• 1.5MHz Fixed Switching Frequency
• Adjustable Output from 0.8V to 0.9xV_IN
• Internal Soft-Start
• Frequency Synchronization Input
• Power Good Output
• Cycle-by-Cycle Current Limiting
• Hiccup Short Circuit Protection
• Thermal Shutdown
• 3mm x 3mm 10-pin QFN (MP2107) and
8-pin SOIC (MP2107A) Packages
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.
V_OUT
1.8V / 4A
Efficiency vs
Output Current
95
90
5V to 1.8V
85
5V to 3.3V
5V to 2.5V
80
75
70
0
1
2
3
4
OUTPUT CURRENT (A)
MP2107/MP2107A Rev. 1.1
www.MonolithicPower.com
1
10/13/2010
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