LTC4263CDE-1#PBF

The LTC4263CDE-1#PBF is a Linear Technology/Analog Devices hot‑swap/power‑path controller. It drives an external MOSFET to provide a controlled, protected power path, enabling safe insertion/removal of a supply and preventing transients, back‑feeding, and faults from propagating to the rest of the system.
Key features (typical):
- Programmable current limit via sense resistor
- Soft‑start to limit inrush
- Overvoltage and undervoltage protection
- Reverse‑current blocking
- Overcurrent/thermal fault protection with a fault/status output
- Simple analog/gate‑drive control (no MCU required)
Package/suffix notes:
- CDE denotes the package variant
- -PBF indicates Pb‑free (lead‑free) finish
- -1 is a specific device revision
Typical applications: telecom/network gear, data centers, servers, and automotive or any system needing safe power insertion and fault isolation.
For exact electrical specs, pinout, and programming details, refer to the LTC4263CDE‑1#PBF datasheet.

Direct 1:1 equivalents for LTC4263CDE-1#PBF do not exist, due to packaging/feature differences. For cross-references, use Analog Devices’ cross-reference tool. Closest substitutes are other IEEE 802.3af/at PoE PD controllers from major vendors, such as TI TPS2375/TPS2376, STMicroelectronics PoE controllers, and Onsemi NCP‑series devices. Ensure pinout, input range, power class, and protection features match your design; contact ADI for an official cross-reference.

Key features of LTC4263CDE-1#PBF:
- High-side hot-swap/power-path controller with built-in current limit
- Programmable current limit using an external resistor
- Soft-start/inrush control for gentle turn-on
- Reverse-current protection (ideal-diode/ORing capability)
- Overvoltage and undervoltage protection on the input
- Over-temperature/shutdown protection
- Fault and status reporting (open-drain/flag outputs) for MCU monitoring
- Enable input with defined POR behavior and fault latch/reset
- Suitable for hot-swap, power-path/ORing applications with fast protection response
- 8-pin package (CDE) and lead-free (PBF) compliant
Note: For exact electrical specs (voltage range, current limit range, timings), refer to the datasheet.

- Pin count: 16 pins (MSOP-16 package, CDE-1 variant)
- Function: High-side hot-swap / power-path controller. Drives an external MOSFET to protect and manage a supply path, providing current limiting, overvoltage protection, and reverse-current blocking for safe power insertion and fault protection.

- Manufacturer: Analog Devices, Inc. (ADI) (owns the Linear Technology LTC line; LTC4263 is one of its parts).
- What kind of company: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits.

Applications areas for LTC4263CDE-1#PBF:
- PoE PD front-end controllers for IEEE 802.3af/at powered devices
- End devices powered over Ethernet (IP cameras, VoIP phones, wireless access points)
- Industrial Ethernet-powered sensors and actuators
- PoE-powered equipment in enterprise/industrial networks requiring controlled power delivery, protection, and startup sequencing

16-lead TSSOP (thin Shrink Small-Outline Package), Pb-free (#PBF).