EV3900DK-00B
High Efficiency
Boost Controller
EV3900DK-00B Rev. 1.1 www.MonolithicPower.com 1
10/18/2007 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2007 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The EV3900DK-00B 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
10mΩ 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-00B 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-00B MP3900DK
Efficiency (%)
0 0.5 1.0 1.5 2.0 2.5 3.0
Current (A)
Efficiency
V
IN
=13V, V
OUT
=25V
V
OUT
=25V
91
92
93
94
95
96
97
98
