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Product Overview
The LMR604303SRAKRQ1 is a high-performance step-down DC-DC converter from Texas Instruments, designed for automotive and industrial applications. It delivers up to 3A continuous output current from a 2.5V to 5.5V input supply. Housed in a compact 9-pin WQFN-HR package (2.5mm x 2.0mm), it offers excellent thermal performance and space savings. The device integrates low RDS(on) MOSFETs and operates at a fixed 2.2MHz switching frequency, enabling small external components.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
2.5V to 5.5V |
| Output Voltage Range |
0.6V to VIN |
| Output Current |
3A |
| Switching Frequency |
2.2MHz (fixed) |
| Efficiency |
Up to 95% |
| Quiescent Current |
17µA (typical) |
| Operating Temperature |
-40°C to +125°C |
| Package |
9-WQFN-HR (2.5mm x 2.0mm) |
Key Features
- Integrated 45mΩ high-side and 25mΩ low-side MOSFETs
- Power Good output with open-drain
- Overcurrent, overvoltage, and thermal shutdown protection
- Adjustable soft-start time
- Spread spectrum for EMI reduction
- AEC-Q100 qualified for automotive applications
Target Applications
- Automotive infotainment and cluster (e.g., Tesla Model 3 dashboard display)
- Advanced driver-assistance systems (ADAS) cameras and radar modules
- 5G base station power management
- Industrial sensors and actuators
- Portable battery-powered devices
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LMR604303SRAKRQ1. 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
LMR604303SRAKRQ1 是德州儀器推出的一款高性能降壓 DC-DC 轉換器,專為汽車和工業應用設計。它可在 2.5V 至 5.5V 輸入電壓範圍內提供高達 3A 的連續輸出電流。採用緊湊的 9 引腳 WQFN-HR 封裝(2.5mm x 2.0mm),具有出色的熱性能和節省空間的優勢。該器件集成了低導通電阻 MOSFET,並以 2.2MHz 固定開關頻率工作,從而實現小型外部元件。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
2.5V 至 5.5V |
| 輸出電壓範圍 |
0.6V 至 VIN |
| 輸出電流 |
3A |
| 開關頻率 |
2.2MHz(固定) |
| 效率 |
高達 95% |
| 靜態電流 |
17µA(典型值) |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
9-WQFN-HR(2.5mm x 2.0mm) |
核心特性
- 集成 45mΩ 高側和 25mΩ 低側 MOSFET
- 開漏輸出的電源正常指示
- 過流、過壓和熱關斷保護
- 可調軟啟動時間
- 展頻功能以降低 EMI
- 通過 AEC-Q100 汽車級認證
典型應用場景
- 汽車信息娛樂和儀表盤(例如特斯拉 Model 3 儀表顯示)
- 高級駕駛輔助系統(ADAS)攝像頭和雷達模塊
- 5G 基站電源管理
- 工業傳感器和執行器
- 便攜式電池供電設備
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 LMR604303SRAKRQ1 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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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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