EV0043 Datasheet, PDF (3/3 Pages) Monolithic Power Systems – 3A, 25V, 1.1MHz Step-Up Converter for WLED Applications

EV0043 (MP1517) – 3A, 25V, 1.1MHz STEP-UP CONVERTER FOR WLED APPLICATIONS
EVALUATION BOARD
PRINTED CIRCUIT BOARD LAYOUT
Figure 1—Top Silk Layer
Figure 2—Top Layer
Figure 3—Bottom Layer
QUICK START GUIDE
1. Connect LEDs to LED1 to LED4 terminals.
2. Connect positive and negative terminals of the 2.5V to 5.5V power supply to the IN and GND
pins, respectively.
3. Drive GATE of Q1 with a pulsed signal to switch between two (2) LED currents.
4. The device is automatically enabled because EN is connected to IN through a 0Ω resistor (R2).
It will be disabled only if V_IN is removed.
NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications.
Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS
products into any application. MPS will not assume any legal responsibility for any said applications.
EV0043 (MP1517) Rev. 1.1
www.MonolithicPower.com
3
2/17/2005
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© 2005 MPS. All Rights Reserved.