MP2208 Datasheet, PDF (1/14 Pages) Monolithic Power Systems – 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.
MP2208
16V, 4A, 600kHz Synchronous
Step-Down Converter
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
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.
TYPICAL APPLICATION
V_IN
3V to 16V
V_CC
3V to 6V
5, 10
7
IN
BS
8 _VCC
SW
MP2208
13 _EN/SYNC
9 _POK
FB
4, 11
14
SS AGND/PGND
2
C6
10nF
1, 3, 12
V_OUT
1.8V / 4A
Efficiency vs.
Load Current
100
VIN=8V
95
VIN=12V
90
VIN=16V
85
80
75
0
VOUT=3.3V
VCC=5V
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
LOAD CURRENT (A)
MP2208 Rev. 0.92
www.MonolithicPower.com
1
5/7/2012
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