LMR70503TMX/NOPB TI Step-Down Converter | 8-DSBGA | 3A, 5.5V Input

Product Overview

The LMR70503TMX/NOPB from Texas Instruments is a high-efficiency, 3A step-down (buck) DC-DC converter designed for space-constrained applications. Housed in a compact 8-DSBGA package (1.6mm x 1.6mm), it integrates high-side and low-side MOSFETs to deliver up to 3A continuous output current. With an input voltage range of 2.7V to 5.5V, it is ideal for low-voltage systems powered by single-cell Li-Ion batteries or 3.3V/5V rails. The device features a fixed 2.2MHz switching frequency, enabling small external components and fast transient response.

Detailed Technical Specifications

Key Features

• 3A continuous output current from tiny 8-DSBGA package
• Wide input voltage range: 2.7V to 5.5V
• High efficiency up to 95% reduces thermal dissipation
• 2.2MHz fixed switching frequency minimizes external inductor and capacitor size
• Internal compensation simplifies design
• Power-good output for sequencing and fault indication
• Over-current, over-voltage, and thermal shutdown protection
• Low quiescent current (40 µA) extends battery life

Target Applications

• 5G base station: powering FPGA cores and SerDes transceivers
• Automotive dashboard: supplying 1.8V/1.2V rails for infotainment processors
• Portable medical devices: battery-powered patient monitors
• Industrial sensors: 3.3V to 1.8V conversion for wireless IoT nodes
• Networking equipment: point-of-load regulation for switch ASICs

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LMR70503TMX/NOPB. 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

LMR70503TMX/NOPB 是德州儀器（TI）推出的一款高效率、3A 降壓型 DC-DC 轉換器，專為空間受限的應用設計。採用緊湊的 8-DSBGA 封裝（1.6mm x 1.6mm），內部集成高側和低側 MOSFET，可提供高達 3A 的連續輸出電流。輸入電壓範圍為 2.7V 至 5.5V，非常適合由單節鋰離子電池或 3.3V/5V 供電的低壓系統。器件具有固定的 2.2MHz 開關頻率，可實現小型外部元件和快速瞬態響應。

詳細技術參數

核心特性

• 從微型 8-DSBGA 封裝提供 3A 連續輸出電流
• 寬輸入電壓範圍：2.7V 至 5.5V
• 高達 95% 的效率，降低熱耗散
• 2.2MHz 固定開關頻率，最小化外部電感和電容尺寸
• 內部補償簡化設計
• 電源正常輸出，用於時序和故障指示
• 過流、過壓和熱關斷保護
• 低靜態電流（40 µA）延長電池壽命

典型應用場景

• 5G 基站：為 FPGA 內核和 SerDes 收發器供電
• 汽車儀表盤：為信息娛樂處理器提供 1.8V/1.2V 電源軌
• 便攜式醫療設備：電池供電的病人監護儀
• 工業傳感器：無線 IoT 節點的 3.3V 至 1.8V 轉換
• 網絡設備：交換機 ASIC 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 LMR70503TMX/NOPB 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]