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Product Overview
The LM2670T-ADJ from Texas Instruments is a high-efficiency, adjustable step-down (buck) switching voltage regulator capable of delivering up to 8A of output current. It operates over a wide input voltage range of 4.5V to 40V and provides an adjustable output voltage from 1.2V to 37V. Housed in a TO-220-7 package, this device integrates a 260kHz fixed-frequency oscillator, internal compensation, and a high-side N-channel MOSFET, minimizing external component count and simplifying design.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
4.5V to 40V |
| Output Voltage Range |
1.2V to 37V (adjustable) |
| Output Current |
Up to 8A |
| Switching Frequency |
260 kHz (typical) |
| Efficiency |
Up to 90% |
| Line Regulation |
0.01% / V (typical) |
| Load Regulation |
0.1% (typical) |
| Operating Temperature |
-40°C to +125°C |
| Package |
TO-220-7 |
Key Features
- High output current capability (8A) for demanding loads
- Wide input voltage range suitable for industrial and automotive applications
- Adjustable output voltage provides design flexibility
- Integrated high-side N-channel MOSFET reduces external components
- Fixed 260kHz switching frequency allows for small filter components
- Internal compensation simplifies design
- Thermal shutdown and current limit protection
- Low standby current (80 µA typical)
Target Applications
- 5G base station power supplies (e.g., remote radio unit power rails)
- Automotive infotainment and dashboard power systems (e.g., 12V to 3.3V conversion)
- Industrial control systems (e.g., PLC power modules)
- Telecommunications equipment (e.g., line cards, routers)
- Battery-powered systems (e.g., portable instruments)
- Distributed power architectures
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LM2670T-ADJ. 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
LM2670T-ADJ 是德州儀器(TI)推出的一款高效率、可調節降壓型開關穩壓器,能夠提供高達 8A 的輸出電流。其輸入電壓範圍為 4.5V 至 40V,輸出電壓可在 1.2V 至 37V 之間調節。採用 TO-220-7 封裝,內部集成 260kHz 固定頻率振盪器、內部補償和高側 N 溝道 MOSFET,最大限度地減少了外部元件數量,簡化了設計。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
4.5V 至 40V |
| 輸出電壓範圍 |
1.2V 至 37V(可調節) |
| 輸出電流 |
高達 8A |
| 開關頻率 |
260 kHz(典型值) |
| 效率 |
高達 90% |
| 線性調整率 |
0.01% / V(典型值) |
| 負載調整率 |
0.1%(典型值) |
| 工作溫度範圍 |
-40°C 至 +125°C |
| 封裝 |
TO-220-7 |
核心特性
- 高輸出電流能力(8A),滿足高負載需求
- 寬輸入電壓範圍,適用於工業和汽車應用
- 可調節輸出電壓,提供設計靈活性
- 集成高側 N 溝道 MOSFET,減少外部元件
- 固定 260kHz 開關頻率,允許使用小型濾波元件
- 內部補償,簡化設計
- 熱關斷和電流限制保護
- 低待機電流(典型值 80 µA)
典型應用場景
- 5G 基站電源(例如遠端射頻單元電源軌)
- 汽車資訊娛樂和儀表板電源系統(例如 12V 轉 3.3V)
- 工業控制系統(例如 PLC 電源模組)
- 電信設備(例如線卡、路由器)
- 電池供電系統(例如可攜式儀器)
- 分散式電源架構
環球供應鏈與批發合作夥伴方案
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我們的核心優勢包括:
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