LTC3787IUFD#TRPBF

The LTC3787IUFD#TRPBF is Linear Technology (Analog Devices)’s LTC3787 dual-channel, interleaved, synchronous buck controller in a specific Pb‑free, industrial-temperature package shipped in tape-and-reel. In short, it’s a high-voltage controller that drives external MOSFETs to produce two regulated DC rails from one input rail, using current‑mode control and interleaved operation for lower ripple and higher efficiency.
Key points:
- Dual buck channels with interleaved operation
- Current-mode control, programmable switching frequency, soft-start
- Cycle-by-cycle current limit and various protections (UVLO/OVP/thermal)
- Suitable for multi-rail power supplies in servers, telecom, and embedded systems
Packaging note: IUFD#TRPBF indicates the exact package, temperature range, and Pb-free, tape-and-reel delivery. For exact electrical specs, pinout, and limitations, refer to the LTC3787 datasheet and packaging table.

There isn’t an exact one-for-one equivalent to LTC3787IUFD#TRPBF. For replacements, look for similar 42V, multi‑phase synchronous buck controllers from Analog Devices/Linear Technology; closest families include the LTC387x and LTC389x series. Use distributor cross-reference tools (Digi‑Key, Mouser) or contact ADI support to identify exact substitutes with matching pinout and package.

LTC3787IUFD#TRPBF Features (concise):
- Dual, multiphase, synchronous buck controller for VRMs
- Wide input range up to 60V
- Two independent current-mode PWM controllers with gate-drive outputs for external N-channel MOSFETs
- Programmable switching frequency with spread-spectrum option
- Soft-start, tracking, and phase-shedding for multi-phase operation
- Remote sense and adjustable output via resistor networks
- Overcurrent (cycle-by-cycle) protection with hiccup option
- Overvoltage / undervoltage protection (UVLO/OVLO) and thermal shutdown
- Enable input and Power-Good status/output fault reporting
- Programmable fault handling and latch capability
- Paralleling capability for higher current in multiphase designs
- Pb-free, tape-and-reel packaging (TRPBF)
Note: These features reflect typical LTC3787 family capabilities; refer to the exact datasheet for precise electrical specs and pinout.

- Pin count: 32 pins
- Function: High‑voltage, multi‑output buck/boost DC‑DC controller with integrated gate drivers for synchronous switching regulators; provides PWM control, feedback/voltage sensing, current limit, undervoltage lockout, and soft‑start for multi‑rail power supplies.

- Manufacturer: Analog Devices, Inc. (ADI). The LTC prefix originally came from Linear Technology, which ADI acquired in 2017, and continues to supply LTC parts under the Analog Devices umbrella.
- What kind of company: A multinational American semiconductor company specializing in analog, mixed-signal, and power-management integrated circuits and related technologies.

Applications of LTC3787IUFD#TRPBF:
- Wide-input, high-efficiency DC-DC conversion (buck, boost, and buck-boost)
- Automotive power supplies and battery-management systems
- Industrial and telecom DC-DC regulators
- Solar/battery-charging and energy-storage power electronics
- High-efficiency point-of-load regulators in complex power modules
- Designs needing dual interleaved channels, fast transient response, and wide Vin-to-Vout regulation

LTC3787IUFD#TRPBF is in a 28‑lead QFN package (5×5 mm body). Pb‑free, Tape & Reel packaging.