LMQ66430R5RXBR TI DC-DC Converter | 14-VQFN (2.6X2.6) | 36V, 3A, Low IQ

Product Overview

The LMQ66430R5RXBR is a high-performance synchronous buck converter from Texas Instruments, designed for space-constrained and power-sensitive applications. It operates over a wide input voltage range of 3V to 36V, delivering up to 3A of continuous output current. The device is housed in a compact 14-pin VQFN package measuring 2.6mm x 2.6mm, making it ideal for dense PCB layouts. With ultra-low quiescent current (IQ) of 2.5µA (typical) in PFM mode, it excels in battery-powered and always-on systems. The LMQ66430R5RXBR integrates high-side and low-side MOSFETs, requires minimal external components, and offers features such as power-good output, enable pin, and thermal shutdown protection.

Detailed Technical Specifications

Key Features

• Wide input voltage range: 3V to 36V, suitable for 12V/24V bus systems
• Ultra-low quiescent current: 2.5 µA in PFM mode, extending battery life
• High efficiency: up to 95% at light loads
• Small solution size: 2.6mm x 2.6mm VQFN package with integrated MOSFETs
• Fixed 2.2 MHz switching frequency minimizes output ripple and external component size
• Power-good output for sequencing and fault indication
• Enable pin for precise on/off control
• Comprehensive protection: overcurrent, overvoltage, undervoltage lockout, thermal shutdown

Target Applications

• 5G base stations: powering RF transceivers and digital processing units
• Automotive dashboard and infotainment systems: providing regulated power for displays and sensors
• Industrial automation: PLCs, motor drives, and sensor modules
• Battery-powered equipment: portable medical devices, handheld instruments
• Networking equipment: routers, switches, and optical modules

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LMQ66430R5RXBR. 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

LMQ66430R5RXBR 是德州儀器（TI）推出的一款高性能同步降壓轉換器，專為空間受限和對功耗敏感的應用而設計。它支持 3V 至 36V 的寬輸入電壓範圍，可提供高達 3A 的連續輸出電流。器件採用緊湊的 14 引腳 VQFN 封裝，尺寸僅為 2.6mm x 2.6mm，非常適合高密度 PCB 佈局。在 PFM 模式下，靜態電流典型值低至 2.5µA，使其在電池供電和常開系統中表現出色。LMQ66430R5RXBR 集成了高側和低側 MOSFET，所需外部元件極少，並提供電源正常輸出、使能引腳和熱關斷保護等功能。

詳細技術參數

核心特性

• 寬輸入電壓範圍：3V 至 36V，適用於 12V/24V 總線系統
• 超低靜態電流：PFM 模式下僅 2.5 µA，延長電池壽命
• 高效率：輕載時高達 95%
• 小型化解決方案：2.6mm x 2.6mm VQFN 封裝，集成 MOSFET
• 固定 2.2 MHz 開關頻率，降低輸出紋波和外部元件尺寸
• 電源正常輸出，用於時序控制和故障指示
• 使能引腳，實現精確的開/關控制
• 全面保護：過流、過壓、欠壓鎖定、熱關斷

典型應用場景

• 5G 基站：為射頻收發器和數字處理單元供電
• 汽車儀表盤和信息娛樂系統：為顯示器和傳感器提供穩壓電源
• 工業自動化：PLC、電機驅動和傳感器模塊
• 電池供電設備：便攜式醫療設備、手持儀器
• 網絡設備：路由器、交換機和光模塊

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LMQ66430R5RXBR 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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• 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。
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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
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