LTM4644IY

LTM4644IY

FEATURES

Quad Output Step-Down μModule® Regulator with 4Aper Output @

Wide input Voltage Range: 4V to 14V2.375V to 14V with External Bias

0.6V to 5.5V Output Voltage

4A DC, 5A Peak Output Current Each ChannelUp to 5.5W Power Dissipation (TA= 60°C, 200 LFM,No Heat Sink)

+1.5% Total Output Voltage RegulationCurrent Mode Control, Fast Transient ResponseParallelable for Higher Output Current

Output Voltage TrackingInternal Temperature Sensing Diode Output @External Frequency SynchronizationOvervoltage, Current and Temperature Protection9mm x 15mm x 5.01mm BGA Package

APPLICATIONS

Multirail Point of Load Regulation

FPGAs, DSPs and ASICs Applications

DESCRIPTION

The LTM®4644/LTM4644-1 is a quad DC/DC step-down µModule (micromodule) regulator with 4A per output. Outputs can be paralleled in an array for up to 16A capabil ity. Included in the package are the switching controllers, power FETs, inductors and support components. Operating over an input voltage range of 4V to 14V or 2.375V to 14V with an external bias supply, the LTM4644/LTM4644-1 supports an output voltage range of 0.6V to 5.5V. Its high efficiency design delivers 4A continuous (5A peak) output current per channel. Only bulk input and output capacitors are needed.