LMR66420R5RXBR TI Step-Down Converter | 14-VQFN (2.6x2.6) | 4.2V-65V Input, 2A Output

Product Overview

The LMR66420R5RXBR is a high-performance step-down (buck) DC-DC converter from Texas Instruments, designed for industrial and automotive applications. It operates over a wide input voltage range of 4.2V to 65V, delivering up to 2A of continuous output current. Housed in a compact 14-pin VQFN package (2.6mm x 2.6mm), it offers excellent thermal performance and space savings. The device integrates high-side and low-side MOSFETs, requiring minimal external components. With features like frequency synchronization, power-good indicator, and adjustable soft-start, it is ideal for powering sensitive loads in harsh environments.

Detailed Technical Specifications

Key Features

• Wide input voltage range: 4.2V to 65V
• Integrated 2A MOSFETs
• Adjustable switching frequency (200kHz to 2.2MHz)
• Low quiescent current: 17 µA
• Power-good output
• Adjustable soft-start
• Overcurrent and overtemperature protection
• Small 14-VQFN package (2.6mm x 2.6mm)

Target Applications

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

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LMR66420R5RXBR. 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

LMR66420R5RXBR 是德州儀器（TI）推出的一款高性能降壓（buck）DC-DC轉換器，專為工業和汽車應用設計。它支援 4.2V 至 65V 的寬輸入電壓範圍，可提供高達 2A 的連續輸出電流。採用緊湊的 14 引腳 VQFN 封裝（2.6mm x 2.6mm），具有出色的熱性能和節省空間的優勢。該器件集成了高側和低側 MOSFET，所需外部元件極少。具備頻率同步、電源正常指示和可調軟啟動等功能，非常適合在惡劣環境中為敏感負載供電。

詳細技術參數

核心特性

• 寬輸入電壓範圍：4.2V 至 65V
• 集成 2A MOSFET
• 可調開關頻率（200kHz 至 2.2MHz）
• 低靜態電流：17 µA
• 電源正常輸出
• 可調軟啟動
• 過流和過溫保護
• 小型 14-VQFN 封裝（2.6mm x 2.6mm）

典型應用場景

• 5G 基站電源
• 汽車信息娛樂系統和儀表板
• 工業傳感器和執行器
• 電池供電設備
• 分布式電源架構

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LMR66420R5RXBR 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。
• 現貨庫存，即日發貨：確保現貨充足。下午 4 點前確認訂單，即可安排當天寄出。
• 深港聯動，結算靈活：深圳直發全球，物流高效可靠；支援香港銀行戶口轉賬及多幣種結算。
• 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]