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Product Overview
The LM2673T-ADJ/NOPB is a high-efficiency 3A step-down (buck) switching voltage regulator from Texas Instruments' Simple Switcher family. It operates over a wide input voltage range of 8V to 40V and provides an adjustable output voltage from 1.2V to 37V. Housed in a TO-220-7 package, this device integrates a 260 mΩ N-channel MOSFET switch, requiring minimal external components. With a fixed 260 kHz switching frequency, it offers excellent line and load regulation, making it suitable for various power conversion applications.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
8V to 40V |
| Output Voltage Range |
1.2V to 37V (Adjustable) |
| Output Current |
3A (Max) |
| Switching Frequency |
260 kHz (Fixed) |
| Efficiency |
Up to 92% |
| Dropout Voltage |
2.5V (Typical at 3A) |
| Quiescent Current |
4.2 mA (Typical) |
| Operating Temperature |
-40°C to +125°C |
| Package |
TO-220-7 |
Key Features
- 3A continuous output current capability
- Wide input voltage range: 8V to 40V
- Adjustable output voltage down to 1.2V
- High efficiency up to 92%
- Fixed 260 kHz switching frequency minimizes external filter components
- Internal compensation and soft-start
- Thermal shutdown and current limit protection
- Simple external component count (only 4 external components required)
Target Applications
- 5G base station power supplies
- Automotive infotainment and dashboard systems
- Industrial control systems
- Telecommunications equipment
- Point-of-load regulation for FPGAs and DSPs
- Battery-powered devices
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LM2673T-ADJ/NOPB. 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
LM2673T-ADJ/NOPB 是德州儀器 Simple Switcher 系列的高效率 3A 降壓開關穩壓器。它支持 8V 至 40V 的寬輸入電壓範圍,並提供 1.2V 至 37V 的可調輸出電壓。採用 TO-220-7 封裝,內部集成 260 mΩ N 溝道 MOSFET 開關,所需外部元件極少。固定 260 kHz 開關頻率,具有優異的線性和負載調整率,適用於各種電源轉換應用。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
8V 至 40V |
| 輸出電壓範圍 |
1.2V 至 37V(可調) |
| 輸出電流 |
3A(最大) |
| 開關頻率 |
260 kHz(固定) |
| 效率 |
高達 92% |
| 壓差電壓 |
2.5V(典型值,3A 時) |
| 靜態電流 |
4.2 mA(典型值) |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
TO-220-7 |
核心特性
- 3A 連續輸出電流能力
- 寬輸入電壓範圍:8V 至 40V
- 可調輸出電壓低至 1.2V
- 高效率高達 92%
- 固定 260 kHz 開關頻率,減少外部濾波元件
- 內部補償和軟啟動
- 熱關斷和電流限制保護
- 簡單的外部元件數量(僅需 4 個外部元件)
典型應用場景
- 5G 基站電源
- 汽車信息娛樂和儀表板系統
- 工業控制系統
- 電信設備
- FPGA 和 DSP 的負載點穩壓
- 電池供電設備
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 LM2673T-ADJ/NOPB 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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