Analog Devices Inc. DC2727A Demo Board for LTC3892 DC/DC Controllers is a high-input voltage, high-efficiency dual-output DC/DC converter. The DC2727A features the LTC®3892‑2, a low IQ, dual output, 2-phase synchronous step-down DC/DC controller. This Analog Devices board operates over a 6V to 40V input voltage range and produces 3.3V at 10A and 12V at 3A output.
12V output is designed using a SEPIC converter for a stable output voltage from an input voltage that can be above, below or equal to the output voltage
3.3V is provided using a synchronous step-down converter
Output voltages can easily be changed with certain modifications
Gate drive voltage can be adjusted from 5V to 10V allowing the use of logic or standard level MOSFETs
DC2727A supports three operation modes: forced continuous mode, pulse-skipping and Burst Mode® operation during light loads
Forced continuous mode reduces output voltage ripple and yields a low noise switching spectrum
Pulse-skipping and burst modes increased efficiency at light loads
Both outputs of the DC2727A switch out of phase to reduce input filtering
DC2727A supports selectable current limit and provides very low dropout operation with its 99% duty cycle capability
Standard operating frequency of 250kHz, but can be adjusted in a range between 75kHz and as high as 850kHz
Integrates the bootstrap diodes which simplifies the design
Designed to support multiple footprints of input/output capacitors and inductors to accommodate variety of applications
Analog Devices Inc. LTC389x Synchronous DC/DC Controllers
150V low IQ, synchronous step-down DC/DC controllers that can operate from voltages up to 150V.