LM34919CQSD/NOPB TI Step-Down Regulator | 12-WSON (4x4) | 4.5V-55V Input, 1.25A Output

Product Overview

The LM34919CQSD/NOPB is a high-voltage, step-down (buck) switching regulator from Texas Instruments, designed for applications requiring a wide input voltage range and high efficiency. Housed in a compact 12-WSON (4x4) package, this device integrates a 1.25A peak current limit switch and operates at a fixed 600 kHz switching frequency, enabling small external components. The regulator supports input voltages from 4.5V to 55V, making it suitable for industrial, automotive, and telecom power systems.

Detailed Technical Specifications

Key Features

• Wide input voltage range: 4.5V to 55V
• 1.25A peak current limit
• Fixed 600 kHz switching frequency
• Integrated high-side N-channel MOSFET
• Internal compensation and soft-start
• Thermal shutdown and current limit protection
• Small 12-WSON (4x4) package

Target Applications

• 5G base station power supplies
• Automotive infotainment and dashboard systems
• Industrial control and automation
• Telecom and networking equipment
• Battery-powered systems

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM34919CQSD/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

LM34919CQSD/NOPB 是德州儀器（TI）推出的一款高壓降壓型開關穩壓器，專為需要寬輸入電壓範圍和高效率的應用而設計。該器件採用緊湊的 12-WSON（4x4）封裝，集成 1.25A 峰值電流限制開關，並以固定的 600 kHz 開關頻率工作，從而實現小型外部元件。穩壓器支持 4.5V 至 55V 的輸入電壓，適用於工業、汽車和電信電源系統。

詳細技術參數

核心特性

• 寬輸入電壓範圍：4.5V 至 55V
• 1.25A 峰值電流限制
• 固定 600 kHz 開關頻率
• 集成高側 N 溝道 MOSFET
• 內部補償和軟啟動
• 熱關斷和電流限制保護
• 小型 12-WSON（4x4）封裝

典型應用場景

• 5G 基站電源
• 汽車信息娛樂和儀表板系統
• 工業控制和自動化
• 電信和網絡設備
• 電池供電系統

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM34919CQSD/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]