LMQ66420R5RXBR TI DC-DC Converter | 14-VQFN (2.6X2.6) | 4.5V-36V Input, 2A Output

Product Overview

The LMQ66420R5RXBR is a high-performance step-down DC-DC converter from Texas Instruments, designed for space-constrained applications. It operates over a wide input voltage range of 4.5V to 36V and delivers up to 2A of continuous output current. Housed in a compact 14-VQFN (2.6mm x 2.6mm) package, this device integrates high-side and low-side MOSFETs, minimizing external component count and solution size. The LMQ66420R5RXBR features peak current-mode control with internal compensation, ensuring stable operation and fast transient response. Its low quiescent current of 17 µA makes it ideal for battery-powered systems.

Detailed Technical Specifications

Key Features

• Wide input voltage range: 4.5V to 36V
• 2A continuous output current
• Integrated MOSFETs with low RDS(on)
• Adjustable switching frequency (400kHz to 2.2MHz)
• Peak current-mode control with internal compensation
• Low quiescent current: 17 µA
• Power-good output
• Overcurrent, overvoltage, and thermal protection
• Small 14-VQFN package (2.6mm x 2.6mm)

Target Applications

• 5G base station power supplies
• Automotive dashboard and infotainment systems
• Industrial sensors and actuators
• Battery-powered IoT devices
• Portable medical equipment
• Distributed power architectures

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LMQ66420R5RXBR. Our core advantages include:

• 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
• In-stock Inventory, Same-day Shipping: We maintain localized stock; orders confirmed before 4 PM are shipped the same day.
• HK-SZ Synergy, Flexible Settlement: Direct global shipping from Shenzhen with support for HK bank transfers and multi-currency.
• Escrow Secured Transactions: We support Escrow.com for secure transactions, ensuring peace of mind for batch orders.
• BOM Kitting & Sampling Services: Specialized sourcing for testing samples and urgent shortage components.

Quality Assurance & Compliance

Jasin Chip guarantees that all delivered products are 100% original factory stock with full quality assurance and traceability.

• 100% Original & Authentic: All components are guaranteed to be authentic with strict quality control.
• RoHS Compliant: All electronic components comply with international environmental and safety standards.
• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

LMQ66420R5RXBR 是德州儀器（TI）推出的一款高性能降壓型 DC-DC 轉換器，專為空間受限的應用設計。它支援 4.5V 至 36V 的寬輸入電壓範圍，並可提供高達 2A 的連續輸出電流。該器件採用緊湊的 14-VQFN（2.6mm x 2.6mm）封裝，內部整合了高側和低側 MOSFET，從而減少了外部元件數量和解決方案尺寸。LMQ66420R5RXBR 採用峰值電流模式控制並內置補償，確保穩定運行和快速瞬態響應。其 17 µA 的低靜態電流使其非常適合電池供電系統。

詳細技術參數

核心特性

• 寬輸入電壓範圍：4.5V 至 36V
• 2A 連續輸出電流
• 整合低導通電阻 MOSFET
• 可調開關頻率（400kHz 至 2.2MHz）
• 峰值電流模式控制，內置補償
• 低靜態電流：17 µA
• 電源正常輸出
• 過流、過壓和過熱保護
• 小型 14-VQFN 封裝（2.6mm x 2.6mm）

典型應用場景

• 5G 基站電源
• 汽車儀表盤和資訊娛樂系統
• 工業感測器和執行器
• 電池供電的 IoT 設備
• 可攜式醫療設備
• 分散式電源架構

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LMQ66420R5RXBR 提供全面的供應鏈與批發解決方案。 我們的核心優勢包括：

• 全天候環球客戶支援：專業團隊為您提供即時報價及技術支援，無需漫長等待。
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• Escrow 擔保交易：支援 Escrow.com 平台交易，保障買賣雙方權益，小批量訂單亦可安心在線下單。
• BOM 配單與樣板服務：提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。

品質保證與合規

Jasin Chip 承諾所有出貨產品均為原廠正貨，具備完善的品質保證及產品可追溯性。

• 100% 原廠正貨：承諾所有供應零件均為原裝現貨，品質嚴格把關，來源清晰可追溯。
• 符合 RoHS 認證：所有電子元器件均符合國際環保標準及相關安全認證。
• 原廠封裝保護：嚴格保留原廠原始包裝及封條，確保物流過程中的靜電防護 (ESD) 與物理安全。

以上產品均為原廠正貨，提供 BOM 配單及現貨庫存支援，歡迎查詢。

HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]