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Product Overview
The LP3988IMF-3.3/NOPB is a high-performance, low-dropout (LDO) linear voltage regulator from Texas Instruments (TI). It delivers a fixed output voltage of 3.3V with a maximum output current of 150mA. Housed in a compact SOT-23-5 package, this device is designed for space-constrained applications requiring low noise, high PSRR, and fast transient response. The LP3988 series is known for its ultra-low dropout voltage (typically 80mV at 150mA load) and excellent line and load regulation, making it ideal for powering sensitive analog and digital circuits.
Detailed Technical Specifications
| Parameter |
Value |
| Output Voltage |
3.3V (Fixed) |
| Output Current (Max) |
150mA |
| Dropout Voltage (Typical) |
80mV @ 150mA |
| Input Voltage Range |
2.5V to 6.5V |
| PSRR |
60dB @ 1kHz |
| Output Noise |
30µVrms (10Hz to 100kHz) |
| Quiescent Current |
100µA (Typical) |
| Operating Temperature |
-40°C to +125°C |
| Package |
SOT-23-5 |
Key Features
- Ultra-low dropout voltage: 80mV typical at 150mA load
- High PSRR: 60dB at 1kHz, reducing ripple from input supply
- Low output noise: 30µVrms, suitable for RF and audio applications
- Fast transient response: ±1% deviation for 1mA to 150mA load step
- Stable with ceramic output capacitors (1µF to 10µF)
- Thermal shutdown and current limit protection
- Fixed 3.3V output with ±2% accuracy
Target Applications
- 5G base station: Powering RF transceiver PLLs and low-noise amplifiers
- Automotive dashboard: Clean supply for infotainment processors and display drivers
- Portable medical devices: Low-noise bias for sensor analog front-ends
- Industrial IoT: Powering wireless modules (e.g., LoRa, BLE) with low quiescent current
- Consumer electronics: Noise-sensitive audio codecs and camera modules
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LP3988IMF-3.3/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
LP3988IMF-3.3/NOPB 是德州儀器 (TI) 生產的高性能低壓差線性穩壓器 (LDO)。它提供固定的 3.3V 輸出電壓,最大輸出電流為 150mA。採用緊湊的 SOT-23-5 封裝,適用於需要低噪聲、高電源抑制比 (PSRR) 和快速瞬態響應的空間受限應用。LP3988 系列以其超低壓差(150mA 負載時典型值 80mV)和優異的線性與負載調節率而聞名,非常適合為敏感的模擬和數字電路供電。
詳細技術參數
| 參數 |
數值 |
| 輸出電壓 |
3.3V (固定) |
| 最大輸出電流 |
150mA |
| 典型壓差 |
80mV @ 150mA |
| 輸入電壓範圍 |
2.5V 至 6.5V |
| 電源抑制比 |
60dB @ 1kHz |
| 輸出噪聲 |
30µVrms (10Hz 至 100kHz) |
| 靜態電流 |
100µA (典型值) |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
SOT-23-5 |
核心特性
- 超低壓差:150mA 負載時典型值 80mV
- 高電源抑制比:1kHz 時 60dB,有效降低輸入紋波
- 低輸出噪聲:30µVrms,適用於射頻和音頻應用
- 快速瞬態響應:1mA 至 150mA 負載跳變時偏差 ±1%
- 與陶瓷輸出電容 (1µF 至 10µF) 穩定工作
- 熱關斷和電流限制保護
- 固定 3.3V 輸出,精度 ±2%
典型應用場景
- 5G 基站:為射頻收發器 PLL 和低噪聲放大器供電
- 汽車儀表盤:為信息娛樂處理器和顯示驅動器提供乾淨電源
- 便攜醫療設備:為傳感器模擬前端提供低噪聲偏置
- 工業物聯網:為無線模組 (如 LoRa、BLE) 提供低靜態電流供電
- 消費電子:噪聲敏感的音頻編解碼器和攝像頭模組
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 LP3988IMF-3.3/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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