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Product Overview
The UCC39421N from Texas Instruments is a high-performance BiCMOS step-down (buck) DC/DC controller designed for low-power applications. It operates from an input voltage range of 2.2V to 18V and delivers up to 1A of output current. The device features a fixed 400kHz switching frequency, internal soft-start, and current-mode control for excellent line and load regulation. Housed in a 16-pin PDIP package, it is ideal for space-constrained designs requiring high efficiency and reliability.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
2.2V to 18V |
| Output Current |
Up to 1A |
| Switching Frequency |
400kHz (fixed) |
| Output Voltage Accuracy |
±1.5% |
| Efficiency |
Up to 95% |
| Operating Temperature |
-40°C to +85°C |
| Package |
16-PDIP |
Key Features
- Current-mode control for fast transient response
- Internal soft-start reduces inrush current
- Low shutdown current (<1µA)
- Built-in overcurrent and thermal shutdown protection
- External synchronization capability
Target Applications
- 5G base station power supplies
- Automotive dashboard displays
- Industrial sensor modules
- Portable battery-powered devices
- Distributed power systems
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
UCC39421N. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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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.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
UCC39421N 是德州仪器 (TI) 的一款高性能 BiCMOS 降压 (buck) DC/DC 控制器,专为低功耗应用设计。其输入电压范围为 2.2V 至 18V,可提供高达 1A 的输出电流。该器件具有固定的 400kHz 开关频率、内部软启动和电流模式控制,可实现出色的线性调整率和负载调整率。采用 16 引脚 PDIP 封装,非常适合需要高效率和可靠性的空间受限设计。
詳細技術參數
| 参数 |
数值 |
| 输入电压范围 |
2.2V 至 18V |
| 输出电流 |
高达 1A |
| 开关频率 |
400kHz (固定) |
| 输出电压精度 |
±1.5% |
| 效率 |
高达 95% |
| 工作温度 |
-40°C 至 +85°C |
| 封装 |
16-PDIP |
核心特性
- 电流模式控制,实现快速瞬态响应
- 内部软启动,减少浪涌电流
- 低关断电流 (<1µA)
- 内置过流和热关断保护
- 外部同步功能
典型應用場景
- 5G 基站电源
- 汽车仪表盘显示器
- 工业传感器模块
- 便携式电池供电设备
- 分布式电源系统
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 UCC39421N 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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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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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。
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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。
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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。
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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
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