LTM4604

V_IN, PGOOD ................................................. 0.3V to 6V
COMP, RUN/SS, FB, TRACK .........................0.3V to V_IN
SW, V_OUT ........................................0.3V to (V_IN + 0.3V)
Operating Temperature Range (Note 2) ... 40 to 85
Junction Temperature ........................................... 125
Storage Temperature Range ................... 55 to 125
Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime.
Note 2: The LTM4604E is guaranteed to meet performance specifi cations from 0 to 85. Specifi cations over the 40 to 85 operating temperature range are assured by design, characterization and correlation with statistical process controls. The LTM4604I is guaranteed over the full 40 to 85 temperature range.

The LTM^®4604 is a complete 4A switch mode DC/DC power supply. Included in the package are the switching controller, power FETs, inductor and all support components. Operating over an input voltage range of 2.375V to 5.5V, the LTM4604 supports an output voltage range of 0.8V to 5V, set by a single resistor. This high effi ciency design delivers up to 4A continuous current (5A peak). Only bulk output capacitors are needed to complete the design.

The low profi le package (2.3mm) of LTM4608A enables utilization of unused space on the bottom of PC boards for high density point of load regulation. High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrifi cing stability. The device supports output voltage tracking for supply rail sequencing.

Fault protection features include foldback current protection, thermal shutdown and a programmable soft-start function. The LTM4604 is offered in a space saving and thermally enhanced 15mm × 9mm × 2.3mm LGA package and is Pb free and RoHS compliant.