LM53603AMPWPT TI Step-Down Converter | 16-HTSSOP | 3.5V-36V Input, 3A Output

Product Overview

The LM53603AMPWPT is a high-performance synchronous step-down (buck) DC-DC converter from Texas Instruments, designed for automotive and industrial applications. It operates over a wide input voltage range of 3.5V to 36V (42V transient) and delivers up to 3A of continuous output current. The device is housed in a compact 16-pin HTSSOP package with PowerPAD for enhanced thermal performance. With integrated high-side and low-side MOSFETs, the LM53603A achieves high efficiency and reduces external component count. The device features a fixed switching frequency of 2.1 MHz, enabling small inductor and capacitor sizes. It also includes a precision enable input, adjustable soft-start, and a power-good output for sequencing.

Detailed Technical Specifications

Key Features

• Wide input voltage range: 3.5V to 36V (42V transient)
• 3A continuous output current
• Integrated high-side and low-side MOSFETs
• Fixed 2.1 MHz switching frequency
• Adjustable output voltage from 0.8V
• Precision enable and power-good output
• Adjustable soft-start to limit inrush current
• Low quiescent current: 25 µA
• Thermal shutdown and overcurrent protection
• Available in 16-HTSSOP package with PowerPAD

Target Applications

• Automotive infotainment and cluster systems (e.g., dashboard displays, head units)
• Advanced driver-assistance systems (ADAS) cameras and sensors
• Industrial power supplies for factory automation
• 5G base station power management
• Telecommunications equipment
• General-purpose step-down regulation

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM53603AMPWPT. 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

LM53603AMPWPT 是德州儀器 (TI) 推出的一款高性能同步降壓 (buck) DC-DC 轉換器，專為汽車和工業應用設計。它支援 3.5V 至 36V 的寬輸入電壓範圍 (可承受 42V 瞬態)，並提供高達 3A 的連續輸出電流。該器件採用緊湊的 16 引腳 HTSSOP 封裝，帶有 PowerPAD 以增強散熱性能。通過集成高側和低側 MOSFET，LM53603A 實現了高效率並減少了外部元件數量。器件具有 2.1 MHz 的固定開關頻率，可實現小型電感和電容器。它還包括精密使能輸入、可調軟啟動和電源正常輸出，用於電源排序。

詳細技術參數

核心特性

• 寬輸入電壓範圍：3.5V 至 36V (42V 瞬態)
• 3A 連續輸出電流
• 集成高側和低側 MOSFET
• 固定 2.1 MHz 開關頻率
• 可調輸出電壓，最低 0.8V
• 精密使能和電源正常輸出
• 可調軟啟動，限制浪湧電流
• 低靜態電流：25 µA
• 熱關斷和過流保護
• 採用 16-HTSSOP 封裝，帶 PowerPAD

典型應用場景

• 汽車信息娛樂和儀表系統 (例如儀表板顯示、主機)
• 高級駕駛輔助系統 (ADAS) 攝像頭和傳感器
• 工業自動化電源
• 5G 基站電源管理
• 電信設備
• 通用降壓穩壓

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM53603AMPWPT 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。
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• 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。
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品質保證與合規

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• 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。
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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]