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Product Overview
The LM5574QMTX/NOPB is a high-voltage, 0.5A step-down switching regulator from Texas Instruments, designed for automotive and industrial applications. It operates over a wide input voltage range of 6V to 75V, making it suitable for harsh environments. The device integrates a 0.5A N-channel MOSFET and features a fixed 500kHz switching frequency. Housed in a 16-pin TSSOP package, it offers a compact solution for power conversion.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
6V to 75V |
| Output Current |
0.5A |
| Switching Frequency |
500kHz (fixed) |
| Output Voltage Accuracy |
±2% |
| Operating Temperature |
-40°C to +125°C |
| Package |
16-TSSOP |
| Quiescent Current |
1.5mA (typical) |
| Shutdown Current |
15µA (typical) |
| Enable Logic |
Active High |
| Protection Features |
Thermal Shutdown, Current Limit, UVLO |
Key Features
- Wide input voltage range: 6V to 75V
- 0.5A continuous output current
- Integrated 0.5A N-channel MOSFET
- Fixed 500kHz switching frequency
- High efficiency up to 90%
- Internal compensation
- Enable pin for power sequencing
- Thermal shutdown and current limit protection
- Undervoltage lockout (UVLO)
- Automotive qualified (AEC-Q100)
Target Applications
- Automotive infotainment and dashboard power supplies
- 5G base station power management
- Industrial sensor and actuator power
- Battery-powered equipment
- Distributed power systems
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LM5574QMTX/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
LM5574QMTX/NOPB 是德州儀器推出的一款高壓、0.5A 降壓開關穩壓器,專為汽車和工業應用設計。它支持 6V 至 75V 的寬輸入電壓範圍,適用於惡劣環境。該器件集成了 0.5A N 溝道 MOSFET,並具有固定的 500kHz 開關頻率。採用 16 引腳 TSSOP 封裝,提供緊湊的電源轉換解決方案。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
6V 至 75V |
| 輸出電流 |
0.5A |
| 開關頻率 |
500kHz(固定) |
| 輸出電壓精度 |
±2% |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
16-TSSOP |
| 靜態電流 |
1.5mA(典型值) |
| 關斷電流 |
15µA(典型值) |
| 使能邏輯 |
高電平有效 |
| 保護功能 |
熱關斷、電流限制、欠壓鎖定 |
核心特性
- 寬輸入電壓範圍:6V 至 75V
- 0.5A 連續輸出電流
- 集成 0.5A N 溝道 MOSFET
- 固定 500kHz 開關頻率
- 高效率,最高可達 90%
- 內部補償
- 使能引腳用於電源排序
- 熱關斷和電流限制保護
- 欠壓鎖定 (UVLO)
- 通過汽車級認證 (AEC-Q100)
典型應用場景
- 汽車信息娛樂系統和儀表板電源
- 5G 基站電源管理
- 工業傳感器和執行器電源
- 電池供電設備
- 分布式電源系統
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 LM5574QMTX/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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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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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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深港聯動,結算靈活:深圳直發全球,物流高效可靠;支援香港銀行戶口轉賬及多幣種結算。
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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。
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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。
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。
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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。
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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。
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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。
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。
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