LTC1778EGN#TRPBF

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LTC1778EGN#TRPBF

+Nomenclature

IC REG CTRLR BUCK/BCK-BST 16SSOP

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Spécifications

Attribut Valeur
Supplier Analog Devices Inc.
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Active
Output Type Transistor Driver
Function Step-Down, Step-Up/Step-Down
Output Configuration Positive or Negative
Topology Buck, Buck-Boost
Number of Outputs 1
Output Phases 1
Voltage - Supply (Vcc/Vdd) 4V ~ 36V
Synchronous Rectifier Yes
Clock Sync Yes
Control Features Enable, Power Good, Soft Start
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount

Présentation

Description

LTC1778EGN#TRPBF is an Analog Devices Linear Technology buck (step-down) DC-DC switching regulator controller. It is not a complete regulator by itself—you use it with external components (inductor, diode or synchronous FETs, input/output caps, feedback resistors) to build a high-efficiency buck supply. Key features typically include current-mode PWM control, programmable switching frequency, soft-start, enable/UVLO, overcurrent protection, and thermal shutdown. It is designed to drive external MOSFETs and regulate an output voltage from a higher-voltage input.
The suffixes indicate packaging/production details: EGN denotes the Pb-free RoHS variant in an 8-pin package, and #TRPBF means Tape-and-Reel packaging (Pb-free). For exact electrical specs (input range, switching frequency, current limit, pinout) see the LTC1778 datasheet and the specific ordering information.

Features

Here are the typical features of the LTC1778EGN#TRPBF (dual, 2-phase synchronous buck regulator):
- Dual, interleaved, synchronous buck regulators
- Wide input range: 4V to 36V
- Two independently adjustable outputs with remote sensing
- Integrated high-side and low-side MOSFETs (no external Schottky needed)
- 2-phase switching around ~2 MHz
- Current-mode control with programmable soft-start
- Enable input and power-good status
- Protections: UVLO, overcurrent/short-circuit protection, thermal shutdown, and overvoltage protection/latch
- High efficiency and fast transient response
- 20-pin TSSOP (EGN) package; RoHS-compliant with TRPBF (tape-and-reel)
Note: Exact numbers (e.g., current per channel, switching frequency, UVLO thresholds) are in the official datasheet; consult it for precise specifications.

Pinout

Pin count: 28 pins (LTC1778EGN is a 28‑lead package, typically a TSSOP-28). Function: Dual PWM switching regulator controller for DC‑DC power supplies; drives external MOSFETs (two‑channel buck topology), with features such as current‑mode control, enable/power‑good, soft‑start, and protection.

Manufacturer

- Manufacturer: Analog Devices, Inc. (ADI). The LTC prefix comes from Linear Technology, which ADI acquired in 2017; LTC1778 is now under Analog Devices.
- What kind of company: A global American semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits. It is publicly traded (NYSE: ADI).

Application

Applications of LTC1778EGN#TRPBF:
- CPU/GPU core voltage regulation (VRMs) in desktops, laptops, and servers
- Power rails for FPGAs, ASICs, DSPs and other high-performance ICs
- Telecom and networking equipment power supplies (multi-rail DC-DC)
- Automotive 12V to low-voltage rails and battery-management systems
- Industrial, automotive, and instrumentation equipment requiring compact, high-efficiency DC-DC converters
- Portable/battery-powered devices needing multiple synchronized buck regulators

Package

An 8-pin MSOP package (MSOP-8). The #TRPBF suffix indicates Tape-and-Reel Pb-free packaging.

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