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Analog Devices LTC4257IS8-1#PBF — Power Management (PMIC / Gate Driver)
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RoHS Compliant · Lead-Free EIA-481 Standard
Analog Devices / Power Management (PMIC / Gate Driver)

LTC4257IS8-1#PBF PoE PD Controller, 12.95 W, 8-SOIC

MPN LTC4257IS8-1#PBF
End of Life Spot Stock · 24-48h Dispatch 100% Original Sealed

Analog Devices LTC4257IS8-1#PBF PoE PD controller, single-channel, 12.95 W max, internal switch, 802.3af compliant, 8-SOIC package, tube.

In Stock: 158 pcs
MOQ: 1 pcs
Logistics: DHL / FedEx DAP (Global Express · 3-7d) Russia & CIS DDP (Door-to-Door Cleared)
Dispatch: Shenzhen / HK
Unit Price (USD)
$3.56 / pc
Direct Purchase Ready
Volume Pricing Breaks Confirmed upon quotation
1+ pcs
$3.56
10+ pcs
$3.20
30+ pcs
$2.92
100+ pcs
$2.63
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$3.56 / ea

158 in stock — maximum per order · 3–4 days lead time

$3.20 / ea from 10 pcs
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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 (12)
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supply Voltage 57V (Max)

Full Technical Specifications

12 Parameters
LTC4257IS8-1#PBF specifications
Parameter / AttributeSpecification / Value
TypeController (PD)
MountingSurface Mount
Supply voltage57V (Max)
Current - supply3mA
Power - max12.95 W
Operating temperature-40°C ~ 85°C
Standards802.3af (PoE)
PackageTube
Case8-SOIC (0.154\", 3.90mm Width)
Auxiliary senseNo
Internal switchYes
Channels1
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[01] Emergency Shortage 24-48h Shenzhen Dispatch

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[02] Industrial Packaging Tape & Reel / Tray / Tube

Standard factory-sealed packaging compliant with EIA-481 standards for automated high-speed SMT pick-and-place lines.

[03] WhatsApp QC Proof 45x Microscope QC Photos

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Technical Details & Description

PoE PD controller with integrated FET

The LTC4257IS8-1#PBF is a single-channel Power over Ethernet Powered Device controller compliant with IEEE 802.3af, delivering up to 12.95 W to the load — the Class 0 power ceiling for PoE. An internal 100 V, 0.4 Ω switch FET integrates the power path, eliminating the external MOSFET and sense resistor typical in discrete implementations.

Industrial temperature and surface-mount footprint

Supply current is 3 mA typical, keeping the quiescent overhead low in systems where the PD's own consumption subtracts from the 12.95 W budget. The maximum input voltage is 57 V, matching the 802.3af PSE output ceiling.

Active production, ROHS3 compliant

Marked as Active in production status, with ROHS3 compliance.

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