EV3900DK-00F
High Efficiency
Boost Controller EV Board
EV3900DK-00F Rev. 1.0 www.MonolithicPower.com 1
9/22/2008 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2008 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The EV3900DK-00F is an evaluation board for the
MP3900DK. It is configured to provide a regulated
25V output at up to 2A load current from a 12V
input. The output is adjustable by changing
feedback resistors on the evaluation board.
MOSFET Rds,on can be directly used for current
sense purpose without an external sense resistor.
Although the demo board uses the external
20mΩ to sense the current, it also provides the
stuffing option for users who want to use the R
DS(ON)
as the sense element.
ELECTRICAL SPECIFICATIONS
Parameter Symbol Value Units
Input voltage V
IN
10~20 V
Input current I
IN
0~6 A
Output voltage V
O
25 V
Output Current I
O
2 A
FEATURES
• Current Mode Control
• Undervoltage Lockout
• Cycle-by-Cycle Current Limiting
• Lossless Current Sense (VISENSE<30V)
• 10µA Shutdown Current
• 180µA Quiescent Current
• 330KHz Constant Frequency Operation
APPLICATIONS
• TV CCFL Power Generation
• Telecom Isolated Power
• Brick Modules
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks
of Monolithic Power Systems, Inc.
EV3900DK-00F EVALUATION BOARD
(L x W x H) 1.8” x 1.8” x 0.4”
4.6cm x 4.6cm x 1.0cm
Board Number MPS IC Number
EV3900DK-00F MP3900DK
88
89
90
91
92
93
94
96
98
97
95
100
99
0 0.5 1.0 1.5 2.0
2.5
EFFICIENCY (%)
OUTPUT CURRENT (A)
Efficiency vs.
Output Current