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Analog Devices LT4256-3CGN#PBF — Discrete Semiconductors
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RoHS Compliant · Lead-Free EIA-481 Standard
Analog Devices / Discrete Semiconductors

LT4256-3CGN#PBF Hot Swap Controller, 10.8-80V, SSOP-16

MPN LT4256-3CGN#PBF
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Analog Devices LT4256-3CGN#PBF Hot Swap Controller, 1-channel, 10.8V to 80V supply, 1.8 mA supply current, programmable UVLO/OVP/current limit/slew rate, SSOP-16 package, tube.

In Stock: 5 pcs
MOQ: 1 pcs
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Dispatch: Shenzhen / HK
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$7.67 / pc
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$7.67 / ea

5 in stock — maximum per order · 3–4 days lead time
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100% Original Sealed 45x Microscope QC 30-Day Warranty · COC USD T/T & PI · DAP/DDP
[SPEC] Essential Parameters Snapshot Full Specifications (11)
Package / Case 16-SSOP (0.154", 3.90mm Width)
Supply Voltage 10.8V ~ 80V

Full Technical Specifications

11 Parameters
LT4256-3CGN#PBF specifications
Parameter / AttributeSpecification / Value
TypeHot Swap Controller
MountingSurface Mount
Supply voltage10.8V ~ 80V
Current - supply1.8 mA
Operating temperature0°C ~ 70°C
PackageTube
ApplicationsGeneral Purpose
Case16-SSOP (0.154\", 3.90mm Width)
Internal switchNo
Channels1
Programmable featuresAuto Retry, Current Limit, Fault Timeout, Latched Fault, OVP, Slew Rate, UVLO
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Technical Details & Description

Hot swap controller for 10.8V to 80V backplanes

The LT4256-3CGN#PBF: It operates from a 10.8V to 80V supply, drawing 1.8 mA quiescent current.

Programmable protection set and board-fit considerations

Programmable features include auto retry, current limit, fault timeout, latched fault, overvoltage protection (OVP), slew rate control, and undervoltage lockout (UVLO). This set allows the designer to tailor the startup ramp, fault response, and voltage thresholds to the specific load capacitance and supply characteristics of the target backplane. The controller does not integrate an internal switch — it drives an external N-channel MOSFET. The Rds(on) of that external FET at operating junction temperature, not the 25°C headline, sets the conduction loss and must stay inside the SOA during the inrush event.

Sourcing posture and lifecycle

Active lifecycle status and ROHS3 compliance mean the LT4256-3CGN#PBF is a current-production part.

Frequently asked questions

What is the closest functional second-source to LT4256-3CGN#PBF?

It is a drop-in replacement for the LT4256-3CGN#PBF in terms of footprint and function, differing only in temperature grade.

What compliance documentation does Analog Devices provide for LT4256-3CGN#PBF?

The part is ROHS3 compliant. No UL, IEC, or REACH documentation is listed in the available record.

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