Date: 26/08/2009

Dual 4A DC/DC uModule regulator from Linear

Linear has released the LTM4619, a dual step-down DC/DC uModule regulator that regulates two output voltages ranging from 0.8V to 5V at up to 4A each from an input supply of 4.5V to 26.5V (28V abs max). This dual DC/DC system includes all the necessary components for two point-of-load regulator circuits: inductors, bypass capacitors, DC/DC controllers, compensation circuitry and power switches.

The LTM4619 is a single part dual DC/DC solution in an IC form factor, designed for systems requiring localized multirail regulation from input supplies such as 5V, 12V or 24V.Applications range from avionics and medical systems to datacom and enterprise equipment.

Key features are,

Standalone power supply
Dual 180° out-of-phase outputs with 4A DC typical, 5A peak output current for each
Output voltage tracking & margining
±1.5% total DC output error
Current mode control/fast transient response
Power good
Phase-lockable fixed frequency 250kHz to 780kHz
On board frequency synchronization
Parallel current sharing
Selectable burst mode operation
Output overvoltage protection
RoHS compliant

Operating temperature range: -40ºC to 125ºC

Package: Small surface mount footprint, low profile (15mm × 15mm × 2.8mm) LGA
package.
Price: Each $16.75 for 1k pieces
Availability: Now
For more details visit www.linear.com