LM2575T-3.3/NOPB TI Simple Switcher | TO-220-5 | 3.3V Fixed Output, 1A Step-Down

Product Overview

The LM2575T-3.3/NOPB is a monolithic integrated circuit from Texas Instruments (TI) that provides all the active functions for a step-down (buck) switching regulator. It is capable of driving a 1A load with excellent line and load regulation. This device is available in a fixed 3.3V output voltage version and is housed in a TO-220-5 package. The LM2575 series is part of the Simple Switcher family, which requires only a minimum number of external components for operation. The device features internal frequency compensation, a fixed-frequency oscillator, and a standard inductor, simplifying the design process. The LM2575T-3.3/NOPB is designed to operate with a wide input voltage range from 4.75V to 40V, making it suitable for a variety of applications including industrial control, automotive electronics, and telecommunications equipment. The NOPB suffix indicates lead-free (RoHS compliant) packaging.

Detailed Technical Specifications

Key Features

• Fixed 3.3V output voltage
• 1A output current capability
• Wide input voltage range: 4.75V to 40V
• 52 kHz fixed-frequency internal oscillator
• Internal frequency compensation
• Thermal shutdown and current limit protection
• Requires only 4 external components
• High efficiency up to 88%
• Low standby current
• Lead-free (RoHS compliant) packaging

Target Applications

• Industrial control systems: PLCs, motor drives
• Automotive electronics: infotainment systems, dashboard displays, ADAS sensors
• Telecommunications: 5G base station power supplies, network switches
• Consumer electronics: set-top boxes, gaming consoles
• Battery-powered equipment: portable instruments, medical devices
• Distributed power systems: point-of-load regulation

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM2575T-3.3/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

LM2575T-3.3/NOPB 是德州儀器（TI）生產的單片集成電路，提供降壓型開關穩壓器的所有有源功能。它能夠驅動 1A 負載，具有優異的線性和負載調節率。該器件提供固定的 3.3V 輸出電壓版本，封裝為 TO-220-5。LM2575 系列屬於 Simple Switcher 系列，只需最少的外部元件即可工作。器件具有內部頻率補償、固定頻率振盪器和標準電感，簡化了設計過程。LM2575T-3.3/NOPB 設計用於 4.75V 至 40V 的寬輸入電壓範圍，適用於工業控制、汽車電子和電信設備等多種應用。NOPB 後綴表示無鉛（符合 RoHS）封裝。

詳細技術參數

核心特性

• 固定 3.3V 輸出電壓
• 1A 輸出電流能力
• 寬輸入電壓範圍：4.75V 至 40V
• 52 kHz 固定頻率內部振盪器
• 內部頻率補償
• 熱關斷和電流限制保護
• 僅需 4 個外部元件
• 高效率高達 88%
• 低待機電流
• 無鉛（符合 RoHS）封裝

典型應用場景

• 工業控制系統：PLC、電機驅動
• 汽車電子：信息娛樂系統、儀表板顯示、ADAS 傳感器
• 電信：5G 基站電源、網絡交換機
• 消費電子：機頂盒、遊戲主機
• 電池供電設備：便攜式儀器、醫療設備
• 分布式電源系統：點負載調節

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM2575T-3.3/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]