TM
EV1542DK-TFT-00A
MP1542 TFT Applications
Evaluation Board
EVALUATION BOARD
The Future of Analog IC Technology
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.
FEATURES
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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
Handheld Computers and PDAs
Digital Still and Video Cameras
Small LCD Displays
APPLICATIONS
ELECTRICAL SPECIFICATIONS
Parameter
Input Voltage
Output Voltage 1
Output Current 1
Output Voltage 2
Output Current 2
Output Voltage 3
Output Current 3
Symbol
V
IN
V
OUT1
I
OUT1
V
OUT2
I
OUT2
V
OUT3
I
OUT3
Value
3 – 3.6
9
150
–8
10
26
5
Units
V
V
mA
V
mA
V
mA
“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
EV1542DK-TFT-00A
MPS IC Number
MP1542DK
1
EV1542DK-TFT-00A Rev. 1.0
www.MonolithicPower.com
6/22/2005
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
MPS [ MONOLITHIC POWER SYSTEMS ]
