TPS73643DBVT TI LDO Regulator | SOT-23-5 | 4.3V Output, 400mA

Product Overview

The TPS73643DBVT from Texas Instruments is a low-dropout (LDO) linear voltage regulator designed to deliver a fixed output voltage of 4.3V with a maximum output current of 400mA. Housed in a compact SOT-23-5 package, this device offers excellent line and load regulation, making it ideal for space-constrained applications requiring stable power. The TPS73643DBVT features a low dropout voltage of typically 75mV at 400mA, enabling efficient operation even when the input voltage is close to the output. It also includes a logic-enabled shutdown mode to reduce quiescent current to less than 1µA, extending battery life in portable devices.

Detailed Technical Specifications

Key Features

• Fixed 4.3V output with ±2% accuracy
• Low dropout voltage: 75mV typical at 400mA
• Low quiescent current: 400µA typical
• Shutdown mode with <1µA quiescent current
• High PSRR: 65dB at 1kHz
• Low output noise: 30µV RMS
• Thermal shutdown and overcurrent protection
• Stable with ceramic output capacitors (1µF minimum)
• Small SOT-23-5 package

Target Applications

• 5G base station power management (e.g., for RF transceiver modules)
• Automotive dashboard displays and infotainment systems
• Portable medical devices (e.g., blood glucose monitors)
• Industrial sensor nodes and IoT modules
• Battery-powered equipment (e.g., wireless headsets, smartwatches)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for TPS73643DBVT. 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

TPS73643DBVT 是德州儀器 (TI) 推出的低壓差線性穩壓器 (LDO)，提供固定的 4.3V 輸出電壓和最大 400mA 輸出電流。採用緊湊的 SOT-23-5 封裝，具有出色的線性和負載調節能力，非常適合需要穩定電源的空間受限應用。典型壓差僅 75mV (400mA 時)，即使輸入電壓接近輸出也能高效工作。內置邏輯關斷模式可將靜態電流降至 1µA 以下，延長便攜設備的電池壽命。

詳細技術參數

核心特性

• 固定 4.3V 輸出，精度 ±2%
• 低壓差：400mA 時典型值 75mV
• 低靜態電流：典型 400µA
• 關斷模式靜態電流 <1µA
• 高 PSRR：1kHz 時 65dB
• 低輸出噪聲：30µV RMS
• 熱關斷和過流保護
• 可使用陶瓷輸出電容 (最小 1µF) 穩定工作
• 小型 SOT-23-5 封裝

典型應用場景

• 5G 基站電源管理 (例如射頻收發模塊)
• 汽車儀表盤顯示和信息娛樂系統
• 便攜醫療設備 (例如血糖監測儀)
• 工業傳感器節點和物聯網模塊
• 電池供電設備 (例如無線耳機、智能手錶)

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 TPS73643DBVT 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。
• 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。
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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]