Exar adds field programmable power regulator
IC to its PowerXR portfolio
Exar has expanded its PowerXR family of digital step down
controllers with the introduction of XRP7708, a new high-integrated
field programmable power regulator IC that is optimized
to provide 8Amps per channel capability while offering a
pin and function compatible option to the existing members.
Exar's PowerXR products fuse digital power-supply control
and monitoring technology with high-performance analog circuitry
in a digital power-management products that enable to create
products with advanced, integrated, switching power supplies,
which reduce wasted energy compared to linear power-supply
regulators.
The key features of the XRP7708 IC are,
Operating input voltage range from 6.5V to 20V
Operating output voltage range from 0.9V to 5.0V, with a
built-in Low-Drop Out (LDO) for standby power, power sequencing
capability, and integrated gate drivers
Configure the power supply's voltage setting and current
thresholds
Fault monitoring and response
Soft start and active shut down timing
Channel sequencing, phase shift management, and loop response
This XRP7708 IC contains four digital pulse width modulator
(DPWM) controlled power supplies with a 12-bit resolution.
It contains an integrated LDO regulator that provides a
fifth voltage supply, which can also be employed as a standby-voltage
source and is fully configurable via an I²C interface
for monitoring, control and management of DC/DC point-of-load
power conversion. The device contains integrated gate drivers
for the high-current outputs and up to six General Purpose
Input/Output (GPIO) pins.
The XRP7708 IC uses a digital PID (proportional, integral,
differential) control algorithm that performs full-digital
loop control at switching frequencies of 1.5 MHz.
"Exar is redefining the concept of scalability,"
said Tim Maloney, senior director Marketing. "While
our PowerXR family already offers an unprecedented level
of programmability and flexibility for applications requiring
up to 5Amps or 15Amps, we are yet adding another dimension
to the scalability of these products with an optimized 8Amp
version which is drop-in pin and function compatible. Exar's
PowerXR family represents today's state of the art evolutionary
and scalable power solution for up to 15Amps."
Operating temperature range: -40ºC to +85ºC
Package: "green"/halogen free 40-pin QFN package
Price: Each $5.00 for 1k pieces
Availability: Now
For more details visit www.exar.com
