LTC3850EGN#TRPBF

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LTC3850EGN#TRPBF

IC REG CTRLR BUCK 28SSOP

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Specifications

Part Status Active
Base Product Number LTC3850
Output Type Transistor Driver
Function Step-Down
Output Configuration Positive
Topology Buck
Number of Outputs 2
Output Phases 2
Voltage - Supply (Vcc/Vdd) 4V ~ 24V
Frequency - Switching 250kHz ~ 780kHz
Duty Cycle (Max) 97.2%
Synchronous Rectifier Yes
Clock Sync No
Control Features Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package 28-SSOP (0.154", 3.90mm Width)
Supplier Device Package 28-SSOP
Packaging Cut Tape (CT), Tape & Reel (TR)

Overview

Description

The LTC3850EGN#TRPBF is a high‑current, multiphase synchronous buck controller from Linear Technology (now Analog Devices). It drives external N‑channel MOSFETs to form a high‑efficiency DC‑DC converter and supports multiple phases for increased output current and reduced ripple. Key features include programmable switching frequency, current sharing across phases, current‑limit protection, soft‑start, enable/shutdown, and over/under voltage protection. It’s used in high‑power power supplies (e.g., telecom, data center, automotive) that require robust, efficient step‑down regulation from higher input voltages. The EGN suffix denotes the package/revision, and TRPBF indicates Tape‑and‑Reel packaging with Pb‑free (lead‑free) certification.

Features

Here are the key features of LTC3850EGN#TRPBF (datasheet-level summary):
- Wide input voltage range with buck-mode operation
- Integrated switching regulator controller with current‑mode control
- Internal switching element for efficient high‑voltage buck conversion (no external FETs required in basic use)
- Fixed/factory-set switching frequency with stable operation
- Soft-start to limit inrush and output overshoot
- Adjustable output voltage via external feedback resistors
- Enable/shutdown control
- Comprehensive protection: overcurrent/short-circuit protection, overvoltage protection, and thermal shutdown
- Power-good/status feedback
- Optional remote sense/feedback for accurate regulation
- 16‑lead package (EGN), RoHS-compliant, Tape & Reel packaging (TRPBF)
Note: Exact electrical numbers (input range, current capability, switching frequency, etc.) are in the full datasheet.

Package

LTC3850EGN#TRPBF is the Pb-free, Tape-and-Reel version in a 28-pin QFN (leadless) package with exposed pad.

Pinout

- Pin count: 28 pins (in LTC3850EGN package).
- Function: A dual, two-phase multiphase buck regulator controller that drives two external N-channel MOSFETs. It uses current‑mode control with programmable switching frequency, includes soft-start, current/overcurrent protection, undervoltage lockout, and phase-current sensing for high‑current DC‑DC conversion.

Manufacturer

Manufacturer: Linear Technology Corporation (LTC), now part of Analog Devices, Inc. (ADI).
Company type: A U.S. semiconductor company specializing in analog, mixed-signal, and power-management integrated circuits.

Application

Applications:
- High-current multiphase buck regulators (VRMs)
- Core voltage regulation for CPUs, GPUs, FPGAs
- Point-of-load (POL) power in servers, motherboards, telecom/datacom equipment
- Industrial/embedded power supplies requiring stable low-voltage rails

Shipping

Shipping MethodsWe

offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.


Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

Currently, we only accept the below payment methods:

1. PayPal

2. Credit/ Debit Card

3. Wire Transfer

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