TPS62221DDCT TI Step-Down Converter | SOT-23-THIN | 2.25MHz, 400mA

Product Overview

The TPS62221DDCT from Texas Instruments is a high-efficiency, synchronous step-down DC-DC converter optimized for battery-powered portable applications. It delivers up to 400 mA output current from a 2.5V to 6V input voltage range. With a 2.25 MHz fixed switching frequency, it allows the use of small inductors and capacitors, minimizing solution size. The device integrates low RDS(on) switches, achieving up to 95% efficiency. It features automatic PFM/PWM mode transition for light-load efficiency, output voltage accuracy of ±1.5%, and a typical quiescent current of 15 µA. The TPS62221DDCT is available in a thin SOT-23 package, making it ideal for space-constrained designs.

Detailed Technical Specifications

Key Features

• High efficiency: up to 95%
• 2.25 MHz fixed switching frequency for small external components
• Automatic PFM/PWM mode transition for light-load efficiency
• Low quiescent current: 15 µA
• Output voltage accuracy: ±1.5%
• Integrated synchronous rectifier
• Short-circuit and thermal protection
• Available in thin SOT-23 package

Target Applications

The TPS62221DDCT is ideal for battery-powered portable devices, such as smartphones, tablets, and wearables. It is also suitable for powering sensors in IoT modules, wireless headsets, and portable medical devices. In industrial applications, it can be used in handheld instruments, data loggers, and remote monitoring systems. Specific examples include powering the core voltage of a 5G base station control module, supplying a dashboard display in automotive infotainment systems, and providing a regulated supply for Bluetooth Low Energy (BLE) modules in smart home devices.

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for TPS62221DDCT. 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

TPS62221DDCT 是德州儀器推出的一款高效同步降壓 DC-DC 轉換器，專為電池供電的便攜式應用而優化。它在 2.5V 至 6V 的輸入電壓範圍內可提供高達 400 mA 的輸出電流。憑藉 2.25 MHz 的固定開關頻率，可使用小型電感和電容，從而最大限度地減小解決方案尺寸。該器件集成了低導通電阻 (RDS(on)) 開關，效率高達 95%。它支持自動 PFM/PWM 模式轉換以實現輕負載高效率，輸出電壓精度為 ±1.5%，典型靜態電流為 15 µA。TPS62221DDCT 採用薄型 SOT-23 封裝，非常適合空間受限的設計。

詳細技術參數

核心特性

• 高效率：高達 95%
• 2.25 MHz 固定開關頻率，支持小型外部元件
• 自動 PFM/PWM 模式轉換，實現輕負載高效率
• 低靜態電流：15 µA
• 輸出電壓精度：±1.5%
• 集成同步整流器
• 短路和熱保護
• 採用薄型 SOT-23 封裝

典型應用場景

TPS62221DDCT 非常適合電池供電的便攜式設備，如智能手機、平板電腦和可穿戴設備。它還適用於為物聯網模塊、無線耳機和便攜式醫療設備中的傳感器供電。在工業應用中，可用於手持儀器、數據記錄器和遠程監控系統。具體示例包括為 5G 基站控制模塊的核心電壓供電、為汽車信息娛樂系統的儀表顯示屏供電，以及為智能家居設備中的藍牙低功耗 (BLE) 模塊提供穩壓電源。

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 TPS62221DDCT 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。
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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。
• 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
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