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Product Overview
The LM5121MHX/NOPB is a high-performance, wide input voltage range boost controller from Texas Instruments. It is designed for applications requiring efficient power conversion from a low-voltage source to a higher output voltage. The device operates from an input voltage range of 3V to 65V, making it suitable for automotive, industrial, and telecom systems. The LM5121 features a 1.2MHz fixed switching frequency, which allows for small external components and reduced solution size. It includes a high-side gate driver for synchronous rectification, enabling high efficiency over a wide load range. The device is available in a 20-pin HTSSOP package with an exposed pad for enhanced thermal performance.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
3V to 65V |
| Output Voltage Range |
Up to 65V (boost) |
| Switching Frequency |
1.2MHz (fixed) |
| Maximum Duty Cycle |
90% |
| Output Current |
Up to 10A (external FET) |
| Efficiency |
Up to 95% |
| Operating Temperature |
-40°C to +125°C |
| Package |
20-HTSSOP |
Key Features
- Wide input voltage range: 3V to 65V
- 1.2MHz fixed switching frequency
- Synchronous rectification for high efficiency
- Programmable soft-start
- Overvoltage protection (OVP)
- Overcurrent protection (OCP)
- Thermal shutdown
- Low shutdown current: 2.5µA
- Enable and synchronization capability
Target Applications
- Automotive: 48V mild-hybrid systems, infotainment, dashboard power supplies
- Industrial: 24V/48V industrial power supplies, motor drives
- Telecom: 5G base station power amplifiers, remote radio units
- Consumer: USB-C power delivery, battery chargers
- LED lighting: High-power LED drivers
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LM5121MHX/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
LM5121MHX/NOPB 是德州儀器推出的一款高性能、寬輸入電壓範圍的升壓控制器。它專為需要從低電壓源高效轉換到更高輸出電壓的應用而設計。該器件的工作輸入電壓範圍為 3V 至 65V,適用於汽車、工業和電信系統。LM5121 具有 1.2MHz 固定開關頻率,允許使用小型外部元件並減小解決方案尺寸。它包含一個用於同步整流的 high-side 柵極驅動器,可在寬負載範圍內實現高效率。該器件採用 20 引腳 HTSSOP 封裝,帶有裸露焊盤以增強熱性能。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
3V 至 65V |
| 輸出電壓範圍 |
最高 65V(升壓) |
| 開關頻率 |
1.2MHz(固定) |
| 最大佔空比 |
90% |
| 輸出電流 |
最高 10A(外部 FET) |
| 效率 |
最高 95% |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
20-HTSSOP |
核心特性
- 寬輸入電壓範圍:3V 至 65V
- 1.2MHz 固定開關頻率
- 同步整流實現高效率
- 可編程軟啟動
- 過壓保護 (OVP)
- 過流保護 (OCP)
- 熱關斷
- 低關斷電流:2.5µA
- 使能和同步功能
典型應用場景
- 汽車:48V 輕度混合動力系統、信息娛樂系統、儀表板電源
- 工業:24V/48V 工業電源、電機驅動
- 電信:5G 基站功率放大器、遠程射頻單元
- 消費類:USB-C 供電、電池充電器
- LED 照明:大功率 LED 驅動器
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 LM5121MHX/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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