EV1542DK-TFT-00A
MP1542 TFT Applications
Evaluation Board
EVALUATION BOARD
EV1542DK-TFT-00A Rev. 1.0 www.MonolithicPower.com 1
6/22/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
The Future of Analog IC Technology
TM
TM
GENERAL DESCRIPTION
The EV1542DK-TFT-00A is the evaluation
board for TFT applications using the MP1542.
The MP1542 can be operated at 700KHz or
1.3MHz allowing for easy filtering and low
noise. An external compensation pin gives the
user flexibility in setting loop dynamics, which
allows the use of small, low-ESR ceramic
output capacitors. Soft-start results in small
inrush current and can be programmed with an
external capacitor. The MP1542 operates from
an input voltage as low as 2.5V and can
generate 12V at up to 500mA from a 5V supply.
The EV1542DK-TFT-00A provides V
OUT1
from
the boost output and also derives V
OUT3
(positive) and V
OUT2
(negative) from the charge
pumps off of the boost switching node.
ELECTRICAL SPECIFICATIONS
Parameter Symbol Value Units
Input Voltage V
IN
3 – 3.6 V
Output Voltage 1 V
OUT1
9 V
Output Current 1 I
OUT1
150 mA
Output Voltage 2 V
OUT2
–8 V
Output Current 2 I
OUT2
10 mA
Output Voltage 3 V
OUT3
26 V
Output Current 3 I
OUT3
5 mA
FEATURES
• 3 Outputs in a Single Package: Boost
Converter for 9V, Positive Charge Pump for
26V and Negative Charge Pump for –8V
• 3V to 3.6V Operating Input Range
• Uses Tiny Capacitors and Inductors
• 700KHz/1.3MHz Fixed Switching Frequency
• Externally Compensated
• Programmable Soft-Start
• UVLO, Thermal Shutdown
• Internal Current Limit
APPLICATIONS
• Handheld Computers and PDAs
• Digital Still and Video Cameras
• Small LCD Displays
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
EV1542DK-TFT-00A EVALUATION BOARD
Dimensions (2.0”X x 2.0”Y x 0.4”Z)
Board Number MPS IC Number
EV1542DK-TFT-00A MP1542DK
