LM5149RGYR TI Buck Controller | 24-VQFN (3.5x5.5) | 4.5V-65V Input, 1A Gate Driver

Product Overview

The LM5149RGYR is a high-performance synchronous buck controller from Texas Instruments, designed for step-down DC-DC conversion in demanding applications. It operates over a wide input voltage range of 4.5V to 65V, making it suitable for industrial, automotive, and telecom power systems. The device integrates a 1A gate driver for external N-channel MOSFETs, enabling efficient power delivery up to 20A output current. Packaged in a compact 24-VQFN (3.5x5.5mm) package, the LM5149RGYR offers excellent thermal performance and space savings.

Detailed Technical Specifications

Key Features

• Wide input voltage range: 4.5V to 65V
• Adjustable switching frequency up to 2.2MHz
• Integrated 1A gate driver for high efficiency
• Peak current mode control for fast transient response
• Comprehensive protection: overvoltage, overcurrent, undervoltage lockout, thermal shutdown
• Low shutdown current (< 2µA)
• External synchronization capability
• Compact 24-VQFN package for space-constrained designs

Target Applications

• 5G base station power supplies
• Automotive infotainment and dashboard systems
• Industrial motor drives and PLCs
• Telecom and networking equipment
• Battery management systems
• LED lighting drivers

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM5149RGYR. 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

LM5149RGYR 是德州儀器（TI）推出的一款高性能同步降壓控制器，專為要求嚴苛的降壓 DC-DC 轉換應用而設計。其輸入電壓範圍為 4.5V 至 65V，適用於工業、汽車和電信電源系統。該器件集成了 1A 柵極驅動器，可驅動外部 N 溝道 MOSFET，實現高達 20A 的輸出電流。LM5149RGYR 採用緊湊的 24-VQFN（3.5x5.5mm）封裝，具有出色的熱性能和節省空間的優勢。

詳細技術參數

核心特性

• 寬輸入電壓範圍：4.5V 至 65V
• 可調開關頻率高達 2.2MHz
• 集成 1A 柵極驅動器，實現高效率
• 峰值電流模式控制，快速瞬態響應
• 全面保護：過壓、過流、欠壓鎖定、熱關斷
• 低關斷電流（< 2µA）
• 外部同步功能
• 緊湊的 24-VQFN 封裝，適合空間受限設計

典型應用場景

• 5G 基站電源
• 汽車信息娛樂系統和儀表板
• 工業電機驅動和 PLC
• 電信和網絡設備
• 電池管理系統
• LED 照明驅動器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM5149RGYR 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]