LM27952SD/NOPB TI LED Driver | 14-WSON (4x3) | 2.7-5.5V, 1.2A

Product Overview

The LM27952SD/NOPB is a high-efficiency, low-noise step-up DC-DC converter from Texas Instruments, designed to drive up to 10 series white LEDs with a constant current. It operates from an input voltage range of 2.7V to 5.5V, making it suitable for single-cell Li-Ion or multi-cell alkaline/NiMH battery-powered applications. The device integrates a 1.2A, 0.35Ω internal switch and uses a fixed-frequency, current-mode PWM architecture for excellent line and load regulation. The output voltage can be set up to 20V, enabling series LED configurations. The LM27952SD/NOPB is available in a compact 14-pin WSON (4x3mm) package, ideal for space-constrained designs.

Detailed Technical Specifications

Key Features

• Integrated 1.2A, 0.35Ω switch
• 1.2MHz fixed switching frequency minimizes external components
• True shutdown isolation (output disconnected from input)
• Over-temperature and over-current protection
• Low shutdown current (<1μA)
• Small 14-pin WSON package (4x3mm)

Target Applications

• Smartphone and tablet backlighting
• Portable media players
• Digital cameras
• GPS navigation systems
• 5G base station indicator LEDs
• Automotive dashboard backlighting

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM27952SD/NOPB. 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

LM27952SD/NOPB 是德州儀器（TI）推出的一款高效率、低噪聲升壓 DC-DC 轉換器，專為驅動多達 10 顆串聯白光 LED 而設計，提供恆定電流。其輸入電壓範圍為 2.7V 至 5.5V，適用於單節鋰離子電池或多節鹼性/NiMH 電池供電的應用。器件內部集成 1.2A、0.35Ω 的開關管，採用固定頻率、電流模式 PWM 架構，具有優異的線性和負載調節能力。輸出電壓最高可達 20V，支持串聯 LED 配置。LM27952SD/NOPB 採用緊湊的 14 引腳 WSON（4x3mm）封裝，適合空間受限的設計。

詳細技術參數

核心特性

• 集成 1.2A、0.35Ω 開關管
• 1.2MHz 固定開關頻率，減小外部元件
• 真正的關斷隔離（輸出與輸入斷開）
• 過溫和過流保護
• 低關斷電流（<1μA）
• 小型 14 引腳 WSON 封裝（4x3mm）

典型應用場景

• 智能手機和平板電腦背光
• 便攜式媒體播放器
• 數碼相機
• GPS 導航系統
• 5G 基站指示燈
• 汽車儀表盤背光

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM27952SD/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：

• 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]