DC1859A

DC1859A demonstration circuit is a dual phase single output DC/DC boost converter featuring the LTC®3124. TheLTC3124 has a 2% precise voltage reference, which can generate an output voltage with 2.2% tolerance if 0.1% voltage divider resistors are used. The 1MHz switching frequency operation results in small and efficient circuit. The converter operates with only one phase in Burst Mode® operation and achieves over 90% efficiency with a 100mA load. The demonstration circuit can be easily modified to generate different output voltages. It is a high performance and cost effective solution for generating output voltages up to 15V from inputs as low as 1.8V.

• Operates over 1.8V to 5.5V input and generates 12V at up to 1.5A from a 5V input
• Maximum output current for a 1.8V input is 750mA
• DC1859 has small circuit footprint
• 100mVP-P typ output voltage ripple at VIN = 5V, IOUT = 1.5A
• 1MHz typ nominal switching frequency