20V, Dual 5A or Single 10A Step-Down DC/DC μModule Regulator

The LTM4705 is a complete dual 5A step-down switching mode μModule® (micromodule) regulator in a tiny 6.25mm × 7.5mm × 3.22mm BGA package. Included in the package are the switching controller, power MOSFETs, inductor and support components. Operating over an input voltage range of 3.1V to 20V, the LTM4705 supports an output voltage range of 0.6V to 5.5V, set by a single external resistor. Its high efficiency design delivers dual 5A continuous output current. Only a few ceramic input and output capacitors are needed.

The LTM4705 supports selectable Burst Mode operation and output voltage tracking for supply rail sequencing. Its high switching frequency and current mode control enable a very fast transient response to line and load changes without sacrificing stability.

Fault protection features include input overvoltage, output overcurrent and overtemperature protection.

The LTM4705 is available with RoHS compliant terminal finish.

APPLICATIONS

* General Purpose Point-of-Load Conversion

* Telecom, Networking and Industrial Equipment

* Medical Diagnostic Equipment

* Test and Debug Systems

* Complete Solution in <1cm2 (Single-Sided PCB) or 0.5cm2 (Dual-Sided PCB)

* Wide Input Voltage Range: 3.1V to 20V

* 0.6V to 5.5V Output Voltage

* Dual 5A or Single 10A Output Current

* ±1.5% Maximum Total Output Voltage Regulation Error Over Load, Line and Temperature

* Current Mode Control, Fast Transient Response