LTM4601HVV

Product Summary

The LTM4601HV is a complete 12A step-down switch mode DC/DC power supply with onboard switching controller, MOSFETs, inductor and all support components. The Module is housed in a small surface mount 15mm 15mm 2.8mm LGA package. Operating over an input voltage range of 4.5 to 28V, the LTM4601HV supports an output voltage range of 0.6V to 5V as well as output voltage tracking and margining. The high ef? ciency design delivers 12A continuous current (14A peak). Only bulk input and output capacitors are needed to complete the design. The low profile (2.8mm) and light weight (1.7g) package easily mounts in unused space on the back side of PC boards for high density point of load regulation. The Module can be synchronized with an external clock for reducing undesirable frequency harmonics and allows PolyPhase operation for high load currents. A high switching frequency and adaptive on-time current mode architecture deliver a very fast transient response to line and load changes without sacri? cing stability. An onboard differential remote sense ampli er can be used to accurately regulate an output voltage independent of load current.

Parametrics

INTVCC, DRVCC, VOUT_LCL, VOUT (VOUT 3.3V with Remote Sense Amp) .......... .3V to 6V
PLLIN, TRACK/SS, MPGM, MARG0, MARG1, PGOOD, fSET ................ .3V to INTVCC + 0.3V
RUN........................................... .3V to 5V
VFB, COMP .................................. .3V to 2.7V
VIN ......................................... .3V to 28V
VOSNS+, VOSNS................... .3V to INTVCC 1V
Operating Temperature Range (Note 2) ... 0C to 85C
Junction Temperature ............................... 125C
Storage Temperature Range ................... 5C to 125

Features

(1) Complete Switch Mode Power Supply;
(2) Wide Input Voltage Range: 4.5V to 28V;
(3) 12A DC Typical, 14A Peak Output Current;
(4) Small Footprint, Low Pro? le (15mm 15mm ,2.8mm Surface Mount LGA Packag
(5) Output Voltage Tracking and Margining;
(6) Parallel Multiple ModulesTM for Current Sharing;
(7) Differential Remote Sensing for Precision Regulation;
(8) PLL Frequency Synchronization;
(9) Ultrafast Transient Response;
(10) Current Foldback Protection (Disabled at Start-Up);
(11) Pb-Free (e4) RoHS Compliant Package with Gold Finish Pads;
(12) 1.5% Regulation;
(13) Current Mode Control;
(14) Up to 95% Ef? ciency at 5VIN, 3.3VOUT;
(15) Programmable Soft-Start;
(16) Output Overvoltage Protection;
(17) 0.6V to 5V Output Voltage;