LM61440AASQRJRRQ1 TI Step-Down Converter | 14-VQFN-HR (4x3.5) | 36V, 4A

Product Overview

The LM61440AASQRJRRQ1 is a high-performance step-down (buck) DC-DC converter from Texas Instruments, designed for automotive and industrial applications. It operates over a wide input voltage range of 3V to 36V and delivers up to 4A of continuous output current. Housed in a compact 14-pin VQFN-HR package (4mm x 3.5mm), this device integrates high-side and low-side MOSFETs, minimizing external component count and solution size. With advanced features such as frequency synchronization, spread spectrum for EMI reduction, and programmable soft-start, the LM61440AASQRJRRQ1 offers robust and efficient power conversion for demanding environments.

Detailed Technical Specifications

Key Features

• Wide input voltage range: 3V to 36V (42V transient)
• 4A continuous output current
• Integrated high-side and low-side MOSFETs
• Adjustable switching frequency with external synchronization
• Spread spectrum for low EMI
• Programmable soft-start and power-good indicator
• Overcurrent, overvoltage, and thermal protection
• Low quiescent current for battery-powered applications

Target Applications

• Automotive: ADAS, infotainment, dashboard clusters, and body electronics
• Industrial: 5G base stations, factory automation, and test equipment
• Communications: PoE (Power over Ethernet) and telecom power supplies
• General purpose: Point-of-load regulation for FPGAs, ASICs, and microcontrollers

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM61440AASQRJRRQ1. 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

LM61440AASQRJRRQ1 是德州儀器（TI）推出的一款高性能降壓（buck）DC-DC轉換器，專為汽車和工業應用設計。它支援3V至36V的寬輸入電壓範圍，並可提供高達4A的連續輸出電流。該器件採用緊湊的14引腳VQFN-HR封裝（4mm x 3.5mm），內部整合了高側和低側MOSFET，最大限度地減少了外部元件數量和解決方案尺寸。憑藉頻率同步、展頻（降低EMI）和可編程軟啟動等先進功能，LM61440AASQRJRRQ1 可在惡劣環境中提供穩定高效的電源轉換。

詳細技術參數

核心特性

• 寬輸入電壓範圍：3V 至 36V（瞬態42V）
• 4A 連續輸出電流
• 整合高側和低側MOSFET
• 可調開關頻率，支援外部同步
• 展頻技術，降低EMI
• 可編程軟啟動和電源正常指示
• 過流、過壓和過熱保護
• 低靜態電流，適合電池供電應用

典型應用場景

• 汽車：ADAS、資訊娛樂系統、儀表盤和車身電子
• 工業：5G基站、工廠自動化和測試設備
• 通訊：PoE（乙太網供電）和電信電源
• 通用：FPGA、ASIC和微控制器的負載點穩壓

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM61440AASQRJRRQ1 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]