LMR51420YFDDCR TI Step-Down Converter | SOT-23-THIN | 4.5V-36V Input, 2A Output

Product Overview

The LMR51420YFDDCR is a high-performance step-down (buck) DC-DC converter from Texas Instruments, designed for compact and efficient power conversion. Housed in a thin SOT-23 package, it delivers up to 2A continuous output current from a wide input voltage range of 4.5V to 36V. With integrated high-side and low-side MOSFETs, the device minimizes external component count and simplifies design. Its peak current-mode control architecture ensures fast transient response and stable operation. The LMR51420YFDDCR is ideal for space-constrained applications requiring high efficiency and reliability.

Detailed Technical Specifications

Key Features

• Wide input voltage range: 4.5V to 36V
• 2A continuous output current
• Integrated 150mΩ high-side and 100mΩ low-side MOSFETs
• 500kHz fixed switching frequency
• Peak current-mode control for fast transient response
• Internal compensation and soft-start
• Protection: overcurrent, overvoltage, undervoltage lockout, thermal shutdown
• Small SOT-23-THIN package for space-saving designs

Target Applications

• 5G base station power supplies
• Automotive dashboard and infotainment systems
• Industrial control and automation
• Portable and battery-powered devices
• Networking and telecom equipment
• General-purpose point-of-load regulation

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LMR51420YFDDCR. 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

LMR51420YFDDCR 是德州儀器（TI）推出的一款高性能降壓型 DC-DC 轉換器，採用薄型 SOT-23 封裝，專為緊湊高效的電源轉換設計。該器件可在 4.5V 至 36V 的寬輸入電壓範圍內提供高達 2A 的連續輸出電流。集成高側和低側 MOSFET，減少了外部元件數量並簡化了設計。其峰值電流模式控制架構確保了快速的瞬態響應和穩定運行。LMR51420YFDDCR 非常適合需要高效率和高可靠性的空間受限應用。

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
• 集成 150mΩ 高側和 100mΩ 低側 MOSFET
• 500kHz 固定開關頻率
• 峰值電流模式控制，快速瞬態響應
• 內部補償和軟啟動
• 保護功能：過流、過壓、欠壓鎖定、熱關斷
• 小型 SOT-23-THIN 封裝，節省空間

典型應用場景

• 5G 基站電源
• 汽車儀表盤和信息娛樂系統
• 工業控制與自動化
• 便攜式和電池供電設備
• 網絡和電信設備
• 通用點負載穩壓

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LMR51420YFDDCR 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]