LTC3850EGN#TRPBF

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LTC3850EGN#TRPBF

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IC REG CTRLR BUCK 28SSOP

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  • データシート LTC3850EGN#TRPBF DataSheet

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仕様

属性
PartStatus Active
BaseProductNumber LTC3850
OutputType Transistor Driver
Function Step-Down
OutputConfiguration Positive
Topology Buck
NumberofOutputs 2
OutputPhases 2
Voltage-Supply(Vcc/Vdd) 4V ~ 24V
Frequency-Switching 250kHz ~ 780kHz
DutyCycle(Max) 97.2%
SynchronousRectifier Yes
ClockSync No
ControlFeatures Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package 28-SSOP (0.154", 3.90mm Width)
SupplierDevicePackage 28-SSOP
Packaging Cut Tape (CT), Tape & Reel (TR)

概要

Description

LTC3850EGN#TRPBF is Linear Technology (now Analog Devices) part number for the LTC3850, a dual, 2‑phase synchronous buck DC‑DC controller.
- Function: It drives two external MOSFET pairs to build high‑current voltage rails (VRMs). It does not include power MOSFETs.
- Operation: Two PWM/current‑mode channels with phase sharing for multi‑phase regulation; programmable switching frequency and protection features.
- Packaging/ordering: The EGN suffix denotes the device package; #TRPBF means Tape‑And‑Reel Pb‑Free packaging.
- Typical use: CPU/GPU core voltage regulators, multi‑phase power supplies in telecom and other high‑current applications.
- What you need: external power MOSFETs, inductors, sense resistors, and feedback components; reference designs and the datasheet provide exact pinout and operating ranges.
For exact electrical specs and pinout, consult the LTC3850 datasheet on Analog Devices’ website.

Features

Here are the key features of LTC3850EGN#TRPBF:
- Dual, interleaved synchronous buck DC-DC controller
- Wide input voltage range (suitable for automotive/industrial applications)
- Current-mode PWM control with cycle-by-cycle current limiting
- Programmable switching frequency
- Soft-start and voltage tracking for each channel
- Independent feedback for dual outputs
- Protections: overcurrent/short-circuit, overvoltage, thermal shutdown
- Undervoltage lockout and an enable control
- Power-good/diagnostic status output
- Integrated control logic optimized for multi-phase, high-current supplies
- 28-pin EGN package with Tape & Reel (TRPBF) packaging
Note: This summary provides typical features for LTC3850-series controllers; always refer to the product data sheet for exact specifications and pinout.

Pinout

- Pin count: 28 pins
- Function: LTC3850EGN is a dual, multiphase synchronous buck regulator controller. It drives two external N-channel MOSFETs in interleaved buck converters to generate a regulated output, with features such as PWM/current-mode regulation, soft-start, enable, and protection elements suitable for VRMs.

Manufacturer

- Manufacturer: Analog Devices, Inc. (ADI). The LTC3850EGN part comes from ADI (formerly Linear Technology).
- What kind of company: A global American semiconductor company that designs and manufactures analog, mixed-signal, and power-management integrated circuits.

Application

LTC3850EGN#TRPBF is used in:
- High‑current, multi‑output DC–DC converters (buck/buck‑boost) for telecom/datacom power systems and servers
- Point‑of‑load regulators for CPUs, GPUs, FPGAs, and ASICs
- Industrial automation and motor‑control power supplies requiring efficient multi‑phase operation
- Automotive and rugged environments needing reliable high‑efficiency DC‑DC power
- Battery‑powered and renewable‑energy applications (energy storage, solar/battery systems) needing compact, efficient regulation
- General multi‑phase, high‑current converter designs across data centers, networking, and computing

Package

LTC3850EGN#TRPBF is in a 28‑lead plastic TSSOP (Thin Shrink Small Outline) package, Pb‑free, Tape & Reel version.

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