Product Summary

The LT4180 solves the problem of providing tight load regulation over long, highly resistive cables without requiring an additional pair of remote sense wires. This Virtual Remote Sense device continuously interrogates the line impedance and corrects the power supply output voltage via its feedback loop to maintain a steady voltage at the load regardless of current changes.

The LT4180 is a full-featured controller with 5mA optoisolator sink capability, under/overvoltage lockout, soft-start and a ±1% internal voltage reference. The Virtual Remote Sense feature set includes user-programmable dither frequency and optional spread spectrum dither.

The LT4180 works with any topology and type of isolated or nonisolated power supply, including DC/DC converters and adjustable linear regulators.

The LT4180 is available in a 24-pin, SSOP package.

Features

Tight Load Regulation with Highly Resistive Cables without Requiring Remote Sense Wiring

Compatible with Isolated and Nonisolated Power Supplies
±1% Internal Voltage Reference

5mA Sink Current Capability
Soft-Correct Reduces Turn-On Transients
Undervoltage and Overvoltage Protection
Pin-Programmable Dither Frequency
Optional Spread Spectrum Dither
Wide VIN Range: 3.1V to 50V
24-Pin SSOP Package

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LT4180EGN#PBF
LT4180EGN#PBF


IC PWR SUPPLY CONTROLLER 24SSOP

Data Sheet

0-1: $3.77
1-25: $2.53
25-100: $2.15
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LT4180EGN#PBF
LT4180EGN#PBF


IC PWR SUPPLY CONTROLLER 24SSOP

Data Sheet

0-1: $3.77
1-25: $2.53
25-100: $2.15
LT4180EGN#TRPBF
LT4180EGN#TRPBF


IC CTLR REMOTE SENSOR 24SSOP

Data Sheet

0-2500: $2.18
LT4180IGN#PBF
LT4180IGN#PBF


IC PWR SUPPLY CONTROLLER 24SSOP

Data Sheet

0-1: $4.37
1-25: $2.92
25-100: $2.48
LT4180IGN#TRPBF
LT4180IGN#TRPBF


IC CTLR REMOTE SENSOR 24SSOP

Data Sheet

0-2500: $2.51
LT4180MPGN#PBF
LT4180MPGN#PBF


IC PWR SUPPLY CONTROLLER 24SSOP

Data Sheet

0-1: $10.10
1-25: $6.76
25-100: $5.74
LT4180MPGN#TRPBF
LT4180MPGN#TRPBF


IC CTLR REMOTE SENSOR 24SSOP

Data Sheet

0-2500: $5.77