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Product Overview
The LP38859SX-1.2/NOPB is a high-performance, low-dropout (LDO) voltage regulator from Texas Instruments, designed to deliver a fixed 1.2V output with a maximum current of 3A. Housed in a TO-263 (DDPAK-5) package, this device offers excellent line and load regulation, making it ideal for power-sensitive applications. With a dropout voltage as low as 420mV at full load, it ensures efficient operation even with minimal input-to-output voltage differential. The LP38859SX-1.2/NOPB features enable/shutdown functionality, overcurrent protection, and thermal shutdown, providing robust performance in demanding environments.
Detailed Technical Specifications
| Parameter |
Value |
| Output Voltage |
1.2V (Fixed) |
| Output Current |
3A (Max) |
| Dropout Voltage |
420mV (Typical at 3A) |
| Input Voltage Range |
1.5V to 5.5V |
| Line Regulation |
0.04% (Typical) |
| Load Regulation |
0.1% (Typical) |
| Quiescent Current |
3mA (Typical) |
| Shutdown Current |
0.01µA (Typical) |
| Operating Temperature Range |
-40°C to +125°C |
| Package |
TO-263 (DDPAK-5) |
| Protection Features |
Overcurrent, Thermal Shutdown |
Key Features
- Fixed 1.2V output with ±2% accuracy
- Low dropout voltage: 420mV at 3A
- Wide input voltage range: 1.5V to 5.5V
- Enable pin for power sequencing
- Excellent transient response
- Stable with low ESR output capacitors (10µF ceramic)
- Overcurrent and thermal protection
- Industry-standard TO-263 package for easy thermal management
Target Applications
- 5G base station power supplies (e.g., for FPGA core voltages)
- Automotive infotainment and dashboard systems (e.g., powering ADAS processors)
- Industrial control systems (e.g., PLC modules)
- Networking equipment (e.g., routers, switches)
- Medical devices (e.g., portable monitors)
- Test and measurement equipment
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LP38859SX-1.2/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.
-
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
LP38859SX-1.2/NOPB 是德州儀器(TI)推出的一款高性能低壓差線性穩壓器(LDO),提供固定的 1.2V 輸出,最大輸出電流為 3A。採用 TO-263(DDPAK-5)封裝,具有優異的線性和負載調整率,非常適合對電源敏感的應用。在滿載條件下,其壓差電壓低至 420mV,確保即使在輸入輸出電壓差很小的情況下也能高效運行。該器件具備使能/關斷功能、過流保護和熱關斷保護,可在惡劣環境中提供穩健性能。
詳細技術參數
| 參數 |
數值 |
| 輸出電壓 |
1.2V(固定) |
| 輸出電流 |
3A(最大) |
| 壓差電壓 |
420mV(典型值,3A 時) |
| 輸入電壓範圍 |
1.5V 至 5.5V |
| 線性調整率 |
0.04%(典型值) |
| 負載調整率 |
0.1%(典型值) |
| 靜態電流 |
3mA(典型值) |
| 關斷電流 |
0.01µA(典型值) |
| 工作溫度範圍 |
-40°C 至 +125°C |
| 封裝 |
TO-263(DDPAK-5) |
| 保護功能 |
過流保護、熱關斷 |
核心特性
- 固定 1.2V 輸出,精度 ±2%
- 低壓差:420mV(3A 時)
- 寬輸入電壓範圍:1.5V 至 5.5V
- 使能引腳,支持電源排序
- 優異的瞬態響應
- 可使用低 ESR 輸出電容(10µF 陶瓷電容)穩定工作
- 過流和熱保護
- 業界標準 TO-263 封裝,易於散熱管理
典型應用場景
- 5G 基站電源(例如為 FPGA 內核供電)
- 汽車信息娛樂和儀表板系統(例如為 ADAS 處理器供電)
- 工業控制系統(例如 PLC 模塊)
- 網絡設備(例如路由器、交換機)
- 醫療設備(例如便攜式監護儀)
- 測試與測量設備
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 LP38859SX-1.2/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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