LD57100J105R ST LDO Voltage Regulator | 6-覆晶（0.78x1.18） | 1A, 0.8V~5.5V

Product Overview

The LD57100J105R from STMicroelectronics is a high-performance, low-dropout (LDO) voltage regulator designed for space-constrained applications. Housed in a compact 6-覆晶 (Flip Chip) package measuring 0.78x1.18 mm, this device delivers up to 1A of output current with excellent accuracy and low noise. It operates over an input voltage range of 0.8V to 5.5V, making it suitable for battery-powered and low-voltage systems. The LD57100J105R features a fixed output voltage of 1.05V, with a typical dropout voltage of only 200mV at full load, ensuring efficient power conversion even under heavy loads.

Detailed Technical Specifications

Key Features

• Ultra-low dropout voltage: 200mV at 1A
• High output voltage accuracy: ±1%
• Low quiescent current: 55 µA
• Excellent PSRR: 70 dB at 1 kHz
• Low output noise: 30 µVrms
• Stable with ceramic capacitors
• Overcurrent and thermal protection
• Enable function for power sequencing

Target Applications

The LD57100J105R is ideal for powering sensitive analog and digital circuits in applications such as:

• 5G base stations: Powering RF transceivers and PLLs
• Automotive dashboards: Supplying clean power to infotainment and display modules
• Portable devices: Smartphones, tablets, and wearables
• Industrial sensors: Low-noise power for precision measurement
• Medical devices: Implantable and portable equipment requiring high reliability

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LD57100J105R. 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.
• HK-SZ Synergy, Flexible Settlement: Direct global shipping from Shenzhen with support for HK bank transfers and multi-currency.
• Escrow Secured Transactions: We support Escrow.com for secure transactions, ensuring peace of mind for batch orders.
• 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.
• RoHS Compliant: All electronic components comply with international environmental and safety standards.
• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

LD57100J105R 是意法半導體（STMicroelectronics）推出的一款高性能低壓差線性穩壓器（LDO），專為空間受限的應用設計。該器件採用緊湊的 6-覆晶封裝，尺寸僅為 0.78x1.18 mm，可提供高達 1A 的輸出電流，具有出色的精度和低噪聲特性。其輸入電壓範圍為 0.8V 至 5.5V，適用於電池供電和低電壓系統。LD57100J105R 的固定輸出電壓為 1.05V，在滿載時典型壓差僅為 200mV，確保即使在重負載下也能高效轉換。

詳細技術參數

核心特性

• 超低壓差：200mV @ 1A
• 高輸出電壓精度：±1%
• 低靜態電流：55 µA
• 優異的 PSRR：70 dB @ 1 kHz
• 低輸出噪聲：30 µVrms
• 可與陶瓷電容穩定工作
• 過流和過熱保護
• 使能功能，支持電源時序控制

典型應用場景

LD57100J105R 適用於為敏感模擬和數字電路供電，典型應用包括：

• 5G 基站：為射頻收發器和鎖相環供電
• 汽車儀表盤：為信息娛樂和顯示模塊提供清潔電源
• 便攜設備：智能手機、平板電腦和可穿戴設備
• 工業傳感器：為精密測量提供低噪聲電源
• 醫療設備：植入式和便攜式設備，要求高可靠性

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LD57100J105R 提供全面的供應鏈與批發解決方案。 我們的核心優勢包括：

• 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。
• 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。
• 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。
• 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。
• 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。

• 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。
• 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。
• 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。

HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]