Complete dual 8A output switch mode DC/DC power supply

The LTM4628 is a complete dual 8A output switch mode DC/DC power supply that can be easily configured to provide a single 2-phase 16A output. Included in the package are switching controllers, power FETs, inductors and all supporting components. From an input voltage range of 4.5V to 26.5V, the LTM4628 supports two outputs, each in a range of 0.6V to 5.5V, set by a single external resistor.

Its high efficiency design delivers 8A continuous current per output. Only a small number of input and output capacitors are required. The device supports frequency synchronization, polyphase operation, burst mode operation and output voltage tracking of supply track sequencing.

It has an onboard temperature diode for device temperature monitoring. High switching frequency and current mode architectures enable very fast transient responses to line and load changes without sacrificing stability. The fault protection function includes overvoltage protection and overcurrent protection.

Power modules are available in space-saving and heat-enhanced 15mm x 15mm x 4.32mm LGA and 15mm x 15mm x 4.92mm BGA packages. The LTM4628 is available in SnPb (BGA) or RoHs-compliant terminal processing.

Features

● Complete independent dual power supply
● Single-channel 16A or dual-channel 8A output
● Wide Input voltage range :4.5V to 26.5V
● Output voltage range :0.6V to 5.5V
●±1.5% total DC output error
● Differential remote sensing amplifier
● Current mode control/fast transient response
● The switching frequency is adjustable
● Overcurrent folding protection
● Multiphase parallel current sharing Multiple LTM4628s
● frequency synchronization
● Internal temperature sensor diode output
● Optional burst mode  operation
● Soft start/voltage tracking
● Output overvoltage protection
● Surface mounting covers a small area, low-key
-   15mm x 15mm x 4.32mm LGA and
-   15mm x 15mm x 4.92mm BGA package

Applications

● Telecommunications and network equipment
● Memory card and ATCA card
● Industrial equipment