LP3923TL/NOPB TI PMIC | 2.7-5.5V, 1.5A Step-Down Converter, 300mA LDO

Product Overview

The LP3923TL/NOPB is a high-performance power management IC (PMIC) from Texas Instruments, designed for portable and battery-powered applications. It integrates a 1.5A step-down DC-DC converter and a 300mA low-dropout (LDO) linear regulator in a compact 12-pin DSBGA package. The device operates from an input voltage range of 2.7V to 5.5V, making it suitable for single-cell Li-Ion, Li-Polymer, or multi-cell alkaline/NiMH battery-powered systems. The step-down converter delivers up to 95% efficiency, while the LDO provides low-noise output for sensitive analog circuits.

Detailed Technical Specifications

Key Features

• High-efficiency step-down converter with up to 95% efficiency
• Low-noise LDO with 120mV dropout at 300mA
• 2.25MHz switching frequency allows small external components
• Low quiescent current (40µA) extends battery life
• Shutdown current less than 1µA
• Internal soft-start reduces inrush current
• Over-current and thermal protection
• Small footprint DSBGA package saves board space

Target Applications

• Smartphones and tablets
• Portable media players
• Wireless headsets and wearables
• IoT modules and sensors
• Battery-powered industrial equipment
• 5G small cell base stations (power management for RF transceivers)
• Automotive dashboard displays and infotainment systems

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LP3923TL/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

LP3923TL/NOPB 是德州儀器（TI）推出的一款高性能電源管理IC（PMIC），專為便攜式和電池供電應用設計。它集成了1.5A降壓DC-DC轉換器和300mA低壓差（LDO）線性穩壓器，採用緊湊的12引腳DSBGA封裝。器件工作輸入電壓範圍為2.7V至5.5V，適用於單節鋰離子、鋰聚合物或多節鹼性/NiMH電池供電系統。降壓轉換器效率高達95%，而LDO為敏感模擬電路提供低噪聲輸出。

詳細技術參數

核心特性

• 高效降壓轉換器，效率高達95%
• 低噪聲LDO，300mA時壓差僅120mV
• 2.25MHz開關頻率，可使用小型外部元件
• 低靜態電流（40µA），延長電池壽命
• 關斷電流小於1µA
• 內部軟啟動，減小浪湧電流
• 過流和過熱保護
• 小尺寸DSBGA封裝，節省電路板空間

典型應用場景

• 智能手機和平板電腦
• 便攜式媒體播放器
• 無線耳機和可穿戴設備
• 物聯網模塊和傳感器
• 電池供電的工業設備
• 5G小型基站（射頻收發器的電源管理）
• 汽車儀表盤顯示和信息娛樂系統

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LP3923TL/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]