主頁(yè) 電源管理 AC/DC 和 DC/DC 轉(zhuǎn)換器（集成 FET）

TPS54528

正在供貨

具有 Eco-Mode? 的 4.5V 至 18V 輸入，5A 同步降壓轉(zhuǎn)換器

產(chǎn)品詳情

Rating Catalog Topology Buck Iout (max) (A) 5 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 6 Vout (min) (V) 0.76 Features Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Switching frequency (min) (kHz) 650 Switching frequency (max) (kHz) 650 Operating temperature range (°C) -40 to 85 Iq (typ) (μA) 900 Duty cycle (max) (%) 85 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 5 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 6 Vout (min) (V) 0.76 Features Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Switching frequency (min) (kHz) 650 Switching frequency (max) (kHz) 650 Operating temperature range (°C) -40 to 85 Iq (typ) (μA) 900 Duty cycle (max) (%) 85 Type Converter
HSOIC (DDA) 8 29.4 mm2 4.9 x 6
  • D-CAP2 Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 6 V
  • Highly Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    – 65 mΩ (High Side) and 36 mΩ (Low Side)
  • High Efficiency, less than 10 μA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 650-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • Auto-Skip Eco-mode for High Efficiency at Light
    Load
  • D-CAP2 Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 6 V
  • Highly Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    – 65 mΩ (High Side) and 36 mΩ (Low Side)
  • High Efficiency, less than 10 μA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 650-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • Auto-Skip Eco-mode for High Efficiency at Light
    Load

The TPS54528 is an adaptive on-time D-CAP2 mode synchronous buck converter. The TPS54528 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54528 uses the D-CAP2 mode control that provides a fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54528 to maintain high efficiency during lighter load conditions. The TPS54528 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 6 V. The device also features an adjustable soft start time. The TPS54528 is available in the 8-terminal DDA package, and designed to operate from –40°C to 85°C.

The TPS54528 is an adaptive on-time D-CAP2 mode synchronous buck converter. The TPS54528 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54528 uses the D-CAP2 mode control that provides a fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54528 to maintain high efficiency during lighter load conditions. The TPS54528 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 6 V. The device also features an adjustable soft start time. The TPS54528 is available in the 8-terminal DDA package, and designed to operate from –40°C to 85°C.
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類(lèi)型 標(biāo)題 下載最新的英語(yǔ)版本 日期
* 數(shù)據(jù)表 具有 Eco-mode(tm) 的 4.5V 至 18V 輸入、5A 同步降壓轉(zhuǎn)換器 數(shù)據(jù)表 (Rev. C) 2014年 2月 24日
EVM 用戶指南 TPS54528 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 8月 25日
選擇指南 電源管理指南 2018 (Rev. K) 2018年 7月 31日
選擇指南 電源管理指南 2018 (Rev. R) 2018年 6月 25日
應(yīng)用手冊(cè) Optimize Output Filter on D-CAP2 for Stability Improvement 2017年 6月 13日
應(yīng)用手冊(cè) TPS54X28 應(yīng)用指導(dǎo) 2015年 9月 2日
應(yīng)用手冊(cè) 基于帶有紋波注入谷底檢測(cè)定導(dǎo)通時(shí)間頻域分析的D-CAP2?頻率響應(yīng)模型 英語(yǔ)版 2015年 9月 2日

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評(píng)估板

TPS54528EVM-052 — 用于 TPS54528 同步降壓轉(zhuǎn)換器（具有 D-CAP2 模式和自動(dòng)跳過(guò)）的評(píng)估模塊

TPS54528EVM-052 評(píng)估模塊是一塊完全組裝且經(jīng)過(guò)測(cè)試的電路板，用于評(píng)估 TPS54528 同步降壓 DC-DC 轉(zhuǎn)換器。該 TPS54528EVM-052 由 4.5V 至 18V 電源供電，在電流為 5A 時(shí)提供 1.05V 的輸出電壓。TPS54528EVM-052 的主要控制環(huán)路采用 D-CAP2 模式，無(wú)需外部組件即可提供非?？焖俚乃矐B(tài)響應(yīng)。集成的“自動(dòng)跳過(guò)” Eco 模式功能可在輕載時(shí)提供更高的效率。
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仿真模型

TPS54528 PSpice Transient Model

SLVMA25.ZIP (113 KB) - PSpice Model
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HSOIC (DDA) 8 Ultra Librarian

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