Product DetailsDemonstration circuit 1254A is a polyphase 3-output step-down supply with tracking featuring the LTC3853EUJ. The input voltage range is 6.5V to 24V. For applications with narrow, 5V ±0.5V input range, the board has an optional resistor to tie the INTVCC pin to the VIN pin. The demo board provides three 5A outputs, with output voltages of 2.5V, 1.8V and 3.3V.
The main features of the board include rail tracking, an internal 5V linear regulator for bias, RUN pins for each output, two PGOOD signals and a Mode selector that allow the converter to run in CCM, pulse skip or Burst Mode operation. Synchronization to an external clock is also possible through some minor component changes.
Documentation & Resources
DC1254A - Schematic9/24/2009112K
DC1254A - Demo Manual9/24/2009550K
DC1254A - Design File9/24/2009ZIP3M
Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.