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Product Overview
The LDL1117S15R is a low dropout linear voltage regulator from STMicroelectronics, offering a fixed output voltage of 1.5V with a maximum output current of 1.2A. Housed in a compact SOT-223 package, this device is designed for space-constrained applications requiring high efficiency and low noise. Its low dropout voltage (typically 0.35V at 1A) ensures stable operation even when the input voltage is close to the output, making it ideal for battery-powered systems and post-regulation stages.
Detailed Technical Specifications
| Parameter |
Value |
| Output Voltage |
1.5V (fixed) |
| Output Current |
1.2A (max) |
| Dropout Voltage |
0.35V typ @ 1A |
| Input Voltage Range |
2.5V to 18V |
| Line Regulation |
0.2% typ |
| Load Regulation |
0.4% typ |
| Quiescent Current |
5mA typ |
| PSRR |
75dB @ 120Hz |
| Operating Temperature |
-40°C to +125°C |
| Package |
SOT-223 |
Key Features
- Fixed 1.5V output voltage with ±1% accuracy
- Low dropout voltage: 0.35V typical at 1A load
- High output current capability: up to 1.2A
- Wide input voltage range: 2.5V to 18V
- Excellent line and load regulation
- High power supply rejection ratio (PSRR): 75dB at 120Hz
- Internal current limit and thermal shutdown protection
- Stable with low ESR ceramic capacitors (≥1µF)
- RoHS compliant and halogen-free
Target Applications
- 5G base station power management modules
- Automotive dashboard and infotainment systems
- Industrial sensors and actuators
- Portable battery-powered devices
- Post-regulation for switching power supplies
- Medical equipment requiring low noise
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LDL1117S15R. Our core advantages include:
-
24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
-
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.
-
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
LDL1117S15R 是意法半導體(STMicroelectronics)推出的一款低壓差線性穩壓器,固定輸出電壓為 1.5V,最大輸出電流 1.2A。採用緊湊的 SOT-223 封裝,適用於空間受限且需要高效率、低噪聲的應用。其低壓差電壓(典型值 0.35V @ 1A)確保了在輸入電壓接近輸出電壓時仍能穩定工作,非常適合電池供電系統和後級穩壓。
詳細技術參數
| 參數 |
數值 |
| 輸出電壓 |
1.5V(固定) |
| 輸出電流 |
1.2A(最大) |
| 壓差電壓 |
典型 0.35V @ 1A |
| 輸入電壓範圍 |
2.5V 至 18V |
| 線性調整率 |
典型 0.2% |
| 負載調整率 |
典型 0.4% |
| 靜態電流 |
典型 5mA |
| 電源抑制比 |
75dB @ 120Hz |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
SOT-223 |
核心特性
- 固定 1.5V 輸出電壓,精度 ±1%
- 低壓差電壓:1A 負載時典型值 0.35V
- 高輸出電流能力:最高 1.2A
- 寬輸入電壓範圍:2.5V 至 18V
- 優異的線性和負載調整率
- 高電源抑制比:120Hz 時 75dB
- 內置電流限制和熱關斷保護
- 可使用低 ESR 陶瓷電容(≥1µF)穩定工作
- 符合 RoHS 標準,無滷素
典型應用場景
- 5G 基站電源管理模塊
- 汽車儀表盤及信息娛樂系統
- 工業傳感器和執行器
- 便攜式電池供電設備
- 開關電源後級穩壓
- 醫療設備(低噪聲需求)
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 LDL1117S15R 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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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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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。
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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
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