LM2853MH-1.8/NOPB TI DC-DC Converter | 14-HTSSOP | 3A, 1.8V Output

Product Overview

The LM2853MH-1.8/NOPB is a high-performance step-down (buck) DC-DC converter from Texas Instruments, designed to deliver up to 3A of continuous output current at a fixed 1.8V output voltage. Housed in a compact 14-lead HTSSOP package with an exposed pad for enhanced thermal dissipation, this device integrates a low RDS(on) N-channel MOSFET switch and synchronous rectifier to achieve high efficiency over a wide load range. The LM2853 operates from an input voltage range of 3V to 5.5V, making it ideal for point-of-load regulation in 3.3V and 5V systems. With a switching frequency of 550 kHz, it allows for small external components while maintaining excellent transient response. The device features internal soft-start, current limit, and thermal shutdown protection, ensuring reliable operation in demanding environments.

Detailed Technical Specifications

Key Features

• Integrated 3A synchronous buck regulator with low RDS(on) MOSFETs
• Fixed 1.8V output with ±2% accuracy over line, load, and temperature
• Wide input voltage range: 3V to 5.5V
• 550 kHz switching frequency enables small inductor and capacitor values
• Internal soft-start reduces inrush current
• Cycle-by-cycle current limit and hiccup mode short-circuit protection
• Thermal shutdown with automatic recovery
• Exposed pad package for improved thermal performance
• Enable pin for power sequencing
• Undervoltage lockout (UVLO)

Target Applications

• 5G base station power supplies (e.g., for FPGA core voltage)
• Automotive dashboard infotainment systems
• Industrial control systems (PLC, motor drives)
• Networking equipment (routers, switches)
• Point-of-load regulation for DSPs and ASICs
• Battery-powered devices (portable instruments)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM2853MH-1.8/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

LM2853MH-1.8/NOPB 是德州儀器（TI）推出的一款高性能降壓（buck）DC-DC 轉換器，能夠在固定 1.8V 輸出電壓下提供高達 3A 的連續輸出電流。器件採用緊湊的 14 引腳 HTSSOP 封裝，帶有裸露焊盤以增強散熱性能，內部集成了低導通電阻（RDS(on)）的 N 溝道 MOSFET 開關和同步整流器，可在寬負載範圍內實現高效率。LM2853 的工作輸入電壓範圍為 3V 至 5.5V，非常適合 3.3V 和 5V 系統中的負載點穩壓。其 550 kHz 的開關頻率允許使用小型外部元件，同時保持出色的瞬態響應。器件具有內部軟啟動、電流限制和熱關斷保護功能，確保在苛刻環境中的可靠運行。

詳細技術參數

核心特性

• 集成 3A 同步降壓穩壓器，帶低 RDS(on) MOSFET
• 固定 1.8V 輸出，在線路、負載和溫度範圍內精度 ±2%
• 寬輸入電壓範圍：3V 至 5.5V
• 550 kHz 開關頻率，可使用小型電感和電容
• 內部軟啟動，減小浪湧電流
• 逐週期電流限制和打嗝模式短路保護
• 熱關斷並自動恢復
• 裸露焊盤封裝，改善熱性能
• 使能引腳，用於電源排序
• 欠壓鎖定（UVLO）

典型應用場景

• 5G 基站電源（例如 FPGA 核心電壓）
• 汽車儀表板信息娛樂系統
• 工業控制系統（PLC、電機驅動）
• 網絡設備（路由器、交換機）
• DSP 和 ASIC 的負載點穩壓
• 電池供電設備（便攜式儀器）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM2853MH-1.8/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]