TPS54521RHLR TI Step-Down Converter | 14-VQFN (3.5x3.5) | 5A, 4.5V-18V

Product Overview

The TPS54521RHLR is a high-performance, 5A step-down (buck) converter from Texas Instruments, designed for space-constrained applications. It operates over a wide input voltage range of 4.5V to 18V and provides a regulated output voltage as low as 0.8V with excellent transient response. Housed in a compact 14-pin VQFN package (3.5mm x 3.5mm), this device integrates high-side and low-side MOSFETs, minimizing external component count and solution size. The TPS54521RHLR features Eco-mode for high efficiency at light loads, making it ideal for power-sensitive designs.

Detailed Technical Specifications

Key Features

• Integrated 5A MOSFETs for compact design
• Wide input voltage range (4.5V to 18V)
• Adjustable switching frequency (300kHz to 2.2MHz)
• Eco-mode for high light-load efficiency
• Power Good output for sequencing
• Cycle-by-cycle current limit and thermal shutdown
• Small 14-pin VQFN package (3.5mm x 3.5mm)

Target Applications

• 5G base station power supplies
• Automotive dashboard and infotainment systems
• Industrial control and automation
• Networking and telecom equipment
• Point-of-load (POL) regulators for FPGAs and ASICs

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for TPS54521RHLR. 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

TPS54521RHLR 是德州儀器（TI）推出的一款高性能、5A 降壓轉換器，專為空間受限的應用設計。它支持 4.5V 至 18V 的寬輸入電壓範圍，並提供低至 0.8V 的穩壓輸出，具有出色的瞬態響應。該器件採用緊湊的 14 引腳 VQFN 封裝（3.5mm x 3.5mm），內部集成高側和低側 MOSFET，減少了外部元件數量和解決方案尺寸。TPS54521RHLR 具有 Eco-mode 功能，可在輕負載下實現高效率，非常適合對功耗敏感的設計。

詳細技術參數

核心特性

• 集成 5A MOSFET，設計緊湊
• 寬輸入電壓範圍（4.5V 至 18V）
• 可調開關頻率（300kHz 至 2.2MHz）
• Eco-mode 實現輕負載高效率
• Power Good 輸出，便於時序控制
• 逐週期電流限制和熱關斷
• 小型 14 引腳 VQFN 封裝（3.5mm x 3.5mm）

典型應用場景

• 5G 基站電源
• 汽車儀表盤和信息娛樂系統
• 工業控制與自動化
• 網絡和電信設備
• FPGA 和 ASIC 的負載點（POL）穩壓器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 TPS54521RHLR 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]