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Product Overview
The LP3891EMR-1.2 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 1A. Housed in an 8-pin SO-PowerPAD package, this device offers excellent thermal performance and is ideal for space-constrained applications requiring precise voltage regulation. The LP3891EMR-1.2 features low dropout voltage, fast transient response, and low quiescent current, making it suitable for powering sensitive analog and digital loads.
Detailed Technical Specifications
| Parameter |
Value |
| Output Voltage |
1.2V (Fixed) |
| Output Current |
1A (Max) |
| Dropout Voltage |
300mV (Typical at 1A) |
| Input Voltage Range |
2.5V to 5.5V |
| Quiescent Current |
85µA (Typical) |
| PSRR |
60dB at 1kHz |
| Output Noise |
30µVrms (10Hz to 100kHz) |
| Operating Temperature |
-40°C to +125°C |
| Package |
8-SO-POWERPAD |
Key Features
- Fixed 1.2V output with ±2% accuracy
- Low dropout voltage: 300mV at 1A
- Low quiescent current: 85µA
- Fast transient response
- Thermal shutdown and current limit protection
- Stable with ceramic output capacitors
- PowerPAD package for enhanced thermal dissipation
Target Applications
- 5G base station power management
- Automotive dashboard and infotainment systems
- Industrial sensor modules
- Portable and battery-powered devices
- FPGA and DSP core voltages
- Medical equipment
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LP3891EMR-1.2. 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
LP3891EMR-1.2 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輸出電壓,最大輸出電流為1A。該器件採用8引腳SO-PowerPAD封裝,具有出色的熱性能,適用於對空間有嚴格要求且需要精確電壓調節的應用。LP3891EMR-1.2 具有低壓差、快速瞬態響應和低靜態電流等特點,非常適合為敏感的模擬和數字負載供電。
詳細技術參數
| 參數 |
數值 |
| 輸出電壓 |
1.2V(固定) |
| 輸出電流 |
1A(最大) |
| 壓差電壓 |
300mV(典型值,1A時) |
| 輸入電壓範圍 |
2.5V 至 5.5V |
| 靜態電流 |
85µA(典型值) |
| 電源抑制比 |
60dB(1kHz) |
| 輸出噪聲 |
30µVrms(10Hz 至 100kHz) |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
8-SO-POWERPAD |
核心特性
- 固定1.2V輸出,精度±2%
- 低壓差:1A時典型值300mV
- 低靜態電流:85µA
- 快速瞬態響應
- 熱關斷和電流限制保護
- 可與陶瓷輸出電容穩定工作
- PowerPAD封裝增強散熱
典型應用場景
- 5G基站電源管理
- 汽車儀表盤和信息娛樂系統
- 工業傳感器模塊
- 便攜式和電池供電設備
- FPGA和DSP核心電壓
- 醫療設備
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 LP3891EMR-1.2 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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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。
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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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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。
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