MP2208
16V, 4A, 600kHz Synchronous
Step-Down Converter
The Future of Analog IC Technology
DESCRIPTION
The MP2208 is an internally compensated
600kHz fixed frequency PWM synchronous
step-down regulator. With a 3V to 6V bias
supply, MP2208 operates from a 3V to 16V
input and generates an adjustable output
voltage from 0.8V to 0.9xV
IN
at up to 4A load
current.
The MP2208 integrates a 80mΩ high-side
switch and a 80mΩ synchronous rectifier for
high efficiency without an external Schottky
diode. With peak current mode control and
internal compensation, it can be stabilized with
ceramic capacitors and small inductors. Fault
condition protection includes short-circuit
protection, cycle-by-cycle current limiting and
thermal shutdown.
The MP2208 is available in small 3mmx4mm
14-lead QFN packages.
FEATURES
4A Output Current
Input Supply Range: 3V to 16V
80mΩ Internal Power MOSFET Switches
Stable with Ceramic Output Capacitors
High Efficiency
600kHz Fixed Switching Frequency
Adjustable Output from 0.8V to 0.9xV
IN
Frequency Synchronization
Power Good Pin
Thermal Shutdown
Cycle-by-Cycle Current Limiting
Short Circuit Protection
3mmx4mm 14-lead QFN Package
µP/ASIC/DSP/FPGA Core and I/O Supplies
Printers and LCD TVs
Network and Telecom Equipment
Point of Load Regulators
APPLICATIONS
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
Efficiency vs.
Load Current
V
IN
3V to 16V
V
CC
3V to 6V
IN
8
13
VCC
BS
SW
4, 11
100
EFFICIENCY (%)
5, 10
7
V
IN
=8V
V
IN
=12V
95
90
V
IN
=16V
85
80
75
MP2208
FB
14
V
OUT
1.8V / 4A
EN/SYNC
9
POK
SS
2
C6
10nF
AGND/PGND
1, 3, 12
V
OUT
=3.3V
V
CC
=5V
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
LOAD CURRENT (A)
MP2208 Rev. 0.92
5/7/2012
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
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