The MAX77540 is a high-efficiency step-down converter
with two 3A switching phases. It uses an adaptive COT
(constant on-time) current-mode control architecture and
the two 3A switching phases can be configured as either
one (2Φ, 6A) or two (1Φ, 3A each) outputs. Its wide input
voltage range enables a direct conversion for sub-1V outputs
from 3-cell Li+ batteries, USB PD, and 12VDC supply
rails. The output voltages are preset with resistors and
are further adjustable through an I2C-compatible interface.
With 94% peak efficiency, low quiescent current, and compact
solution size, the MAX77540 is ideal for battery powered,
space-constraint equipment.
Programmable switching frequency, frequency tracking,
and spread-spectrum allow easier system
optimization for noise-sensitive applications. Dedicated
EN, POK, and FPWM pins provide options for direct
hardware control, while more programmable options, such
as soft-start/stop and ramp-up/down slew-rates, are available
through I2C. An array of built-in protections insures
safe operation under abnormal operating conditions.
Applications
- 2/3-Cell Li+ and USB-C Power Delivery Systems
- Audio and Video Equipment
- Microprocessors, field-programmable gate arrays (FPGAs), digital signal processors (DSPs),andapplication-specific integrated circuits (ASICs)
- Networking and PCIe®/redundant array of inexpensive disks (RAID) Cards
.svg?rev=fd385c90e2cf4716ae9a8c8d20e6b8e3&la=en&h=24&w=24&hash=A302DF48F94BAAA11877AF223F27157A){kind=icon}
