LT4276AHUFD#PBF vs LT4276AIUFD Comparison
Detailed side-by-side comparison of LT4276AHUFD#PBF by Analog Devices and LT4276AIUFD by Analog Devices. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Analog Devices
LT4276AHUFD#PBF - LTPoE++ PoE PD Controller 90W | Analog Devices
LT4276AHUFD#PBF ✓ ActiveAnalog Devices
LT4276AIUFD - LTPoE++/PoE+/PoE PD Forward/Flyback Controller | Analog Devices
LT4276AIUFD ✓ ActiveSpecification Comparison
| Parameter | LT4276AHUFD#PBF | LT4276AIUFD |
|---|---|---|
| Brand | Analog Devices | Analog Devices |
| Category | Voltage Regulators | Power Over Ethernet (PoE) Controllers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.58 | $2.28 |
| Function | LTPoE++/PoE+/PoE Powered Device Controller with integrated switching regulator | — |
| Supported Standards | IEEE 802.3at (PoE+), 802.3af (PoE), LTPoE++ | — |
| Maximum PD Power | 90 W (LTPoE++ class) | — |
| Classification Levels | 38.7W / 52.7W / 70W / 90W | — |
| VPORT Rating | 60 V | — |
| Operating Current | 2 mA typical | — |
| Switching Frequency | 300 kHz | — |
| Supported Topologies | Forward, Flyback (synchronous, isolated) | — |
| Auxiliary Power Support | Yes | — |
| Package | QFN-28 (4x5 mm) with exposed pad | 28-QFN (4x5 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +125C | -40C to +85C |
| MSL Level | 2 | 1 (unlimited) |
| RoHS Status | Compliant (Pb-free #PBF suffix) | Compliant (#PBF suffix) |
| Pin/Package Compatibility | Pin-for-pin with LT4276B (PoE+) and LT4276C (PoE) | — |
| Product Type | — | Powered Device (PD) Controller |
| PoE Standard | — | IEEE 802.3af/at, LTPoE++ |
| LTPoE++ Power Levels | — | 38.7W / 52.7W / 70W / 90W |
| PoE+ Power | — | 25.5W |
| PoE Power | — | 12.95W |
| Number of Channels | — | 1 |
| Topology Support | — | Forward / Flyback |
| Auxiliary Supply Support | — | Yes (auto takeover) |
| Integrated Hot Swap FET | — | Yes, 100V |
| Lead-Free | — | Yes |
| Halogen Free | — | Yes |
| 1ku List Price (Starting) | — | $2.47 USD |