EV28115DQ-00B
4A, 6V, Synchronous
Step-Down Switching Regulator EV Board
EV28115DQ-00B Rev. 1.0 www.MonolithicPower.com 1
10/12/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The EV28115DQ-00B is an evaluation board for
the MP28115. The MP28115 delivers 4A
continuous load current over an operating input
voltage 2.7V to 6.0V. The output is adjustable over
a range of 0.8V to 0.9xV
IN
by means of an external
resistor from FB pin to ground.
The current mode control used in MP28115
provides fast transient response and cycle-by-
cycle current limiting. The EV board will go into
hiccup mode to protect against over current/short
circuit.
This EV board can be turned on or shut down via a
remote ON/OFF input that is referenced to ground.
This input is compatible with popular logic devices.
This EV board also has power good indicator. The
output of POK is pulled to ground when output
voltage is under or over 10% of its setting voltage.
ELECTRICAL SPECIFICATIONS
Parameter Symbol Value Units
Input Voltage V
IN
2.7 – 6.0 V
Output Voltage V
OUT
1.8 V
Output Current I
OUT
4 A
FEATURES
• 4A Output Current
• 2.7V to 6.0V Operating Input Range
• Built-in Soft Start
• Adjustable Output from 0.8V to 0.9xV
IN
• Fully Assembled and Tested
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 Registered Trademarks of
Monolithic Power Systems, Inc.
EV28115DQ–00B EVALUATION BOARD
(L x W x H) 2.4” x 2.0” x 0.5”
(6.1cm x 5.1cm x 1.4 cm)
Board Number MPS IC Number
EV28115DQ-00B MP28115DQ
70
65
60
75
80
85
90
95
100
OUTPUT CURRENT (A)
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
