DEMO BOARD QUICK START GUIDE DC480 HIGH EFFICIENCY, THINSOT SYNCHRONOUS BUCK REGULATOR LTC3405A DESCRIPTION Demonstration circuit DC480 is a constant-frequency tions, grounding the MODE pin enables Burst Mode step-down converter that uses the LTC3405A monolithic operation. These features, plus the LTC3405A coming in synchronous buck regulator. The DC480 has an input a tiny 6-Pin SOT-23 package and having an operating voltage range of 2.5V to 5.5V, and is capable of deliver- frequency of 1.5 MHz (allowing the exclusive use of low ing up to 300mA of output current at 3.0V minimum in- profile surface mount components), make the DC480 put voltage. In Burst Mode operation, the DC supply demo board an ideal circuit for use in battery-powered, current is typically only 25A at no load, and less than hand-held applications. Gerber files for this circuit are 1A in shutdown. In switching-noise sensitive applica- available. Call the LTC Factory. QUICK START The DC480 demonstration board is easy to set up to NOTE: Do not hot-plug V or increase V over the IN IN evaluate the performance of the LTC3405A. Refer to Fig- rated maximum supply voltage of 6V, or th e part may ure 1 for proper measurement equipment setup. be damaged. NOTE: When the board is right-side up (the title is 2. Connect the load between the V and GND termi- OUT legible at the top of the board), the output voltage tur- nals on the left side of the board. Refer to figure 1 for ret is on the left side of the board, and the input volt- the proper measurement equipment setup. age turret is on the right side of the board. Set up the 3. Select the desired operating mode using JP1. To se- circuit appropriately. lect pulse-skipping mode, tie the MODE pin to V by IN Please follow the procedure outlined below for proper inserting the jumper into the lower position. Inserting operation. the jumper into the upper position connects the pin to ground, which causes Burst Mode operation. Do 1. Connect the input power supply to the V and GND IN not leave this pin floating. terminals on the right-side of the board. 4. To shut down the circuit, connect the RUN pin to ground by inserting the JP2 jumper into the upper position. Do not leave this pin floating. Figure 1. Proper Measurement Equipment Setup 1 X-ON Electronics Largest Supplier of Electrical and Electronic Components Click to view similar products for Power Management IC Development Tools category: Click to view products by Analog Devices manufacturer: Other Similar products are found below : EVAL-ADM1168LQEBZ EVB-EP5348UI MIC23451-AAAYFL EV MIC5281YMME EV DA9063-EVAL ADP122-3.3-EVALZ ADP130- 0.8-EVALZ ADP130-1.2-EVALZ ADP130-1.5-EVALZ ADP130-1.8-EVALZ ADP1714-3.3-EVALZ ADP1716-2.5-EVALZ ADP1740-1.5- EVALZ ADP1752-1.5-EVALZ ADP1828LC-EVALZ ADP1870-0.3-EVALZ ADP1871-0.6-EVALZ ADP1873-0.6-EVALZ ADP1874-0.3- EVALZ ADP1882-1.0-EVALZ ADP199CB-EVALZ ADP2102-1.25-EVALZ ADP2102-1.875EVALZ ADP2102-1.8-EVALZ ADP2102-2- EVALZ ADP2102-3-EVALZ ADP2102-4-EVALZ ADP2106-1.8-EVALZ ADP2147CB-110EVALZ AS3606-DB BQ24010EVM BQ24075TEVM BQ24155EVM BQ24157EVM-697 BQ24160EVM-742 BQ24296MEVM-655 BQ25010EVM BQ3055EVM NCV891330PD50GEVB ISLUSBI2CKIT1Z LM2744EVAL LM2854EVAL LM3658SD-AEV/NOPB LM3658SDEV/NOPB LM3691TL- 1.8EV/NOPB LM4510SDEV/NOPB LM5033SD-EVAL LP38512TS-1.8EV EVAL-ADM1186-1MBZ EVAL-ADM1186-2MBZ