STBB1-APUR ST Step-Down Converter | 10-DFN(3x3) | 1.2A Output, 2.3-5.5V Input

Product Overview

The STBB1-APUR is a high-efficiency step-down (buck) DC-DC converter from STMicroelectronics, designed for space-constrained applications. Housed in a compact 10-DFN (3x3 mm) package, it delivers up to 1.2A output current from an input voltage range of 2.3V to 5.5V. The device features a fixed 1.8V output voltage with ±2% accuracy, making it ideal for powering low-voltage digital cores, I/O rails, and sensor modules.

Detailed Technical Specifications

Key Features

• High efficiency up to 95% reduces thermal dissipation
• Low quiescent current (40 µA) extends battery life
• 1.5 MHz switching frequency enables small external components
• Internal compensation and soft-start simplify design
• Overcurrent and thermal protection for robust operation
• Enable pin for power sequencing

Target Applications

• 5G base station control boards (e.g., powering FPGA cores)
• Automotive dashboard displays (e.g., infotainment processors)
• Portable medical devices (e.g., glucose meters)
• IoT sensor nodes (e.g., environmental monitors)
• Industrial automation (e.g., PLC I/O modules)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for STBB1-APUR. 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

STBB1-APUR 是意法半導體推出的一款高效率降壓型 DC-DC 轉換器，專為空間受限的應用設計。採用緊湊的 10-DFN（3x3 mm）封裝，在 2.3V 至 5.5V 輸入電壓範圍內可提供高達 1.2A 的輸出電流。器件具有固定的 1.8V 輸出電壓，精度為 ±2%，非常適合為低壓數字內核、I/O 電源軌和傳感器模塊供電。

詳細技術參數

核心特性

• 高達 95% 的效率，降低熱耗散
• 低靜態電流（40 µA），延長電池壽命
• 1.5 MHz 開關頻率，支持小型外部元件
• 內部補償和軟啟動，簡化設計
• 過流和熱保護，確保可靠運行
• 使能引腳，支持電源時序控制

典型應用場景

• 5G 基站控制板（例如為 FPGA 內核供電）
• 汽車儀表盤顯示（例如信息娛樂處理器）
• 便攜式醫療設備（例如血糖儀）
• 物聯網傳感器節點（例如環境監測器）
• 工業自動化（例如 PLC I/O 模塊）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 STBB1-APUR 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]