首頁 電源管理 DC/DC 切換穩壓器 DC/DC 轉換器
首頁
電源管理
DC/DC 切換穩壓器
DC/DC 轉換器

LM25576-Q1

現行

42V、3A 降壓切換穩壓器

立即訂購
產品規格表

LM25576-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Iout (max) (A) 3 Vin (max) (V) 42 Vin (min) (V) 6 Vout (max) (V) 40 Vout (min) (V) 1.23 Features Frequency synchronization, Over Current Protection, Soft Start Adjustable Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.001 Duty cycle (max) (%) 95
Rating Automotive Iout (max) (A) 3 Vin (max) (V) 42 Vin (min) (V) 6 Vout (max) (V) 40 Vout (min) (V) 1.23 Features Frequency synchronization, Over Current Protection, Soft Start Adjustable Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.001 Duty cycle (max) (%) 95
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Integrated 42V, 170mΩ N-channel MOSFET
  • Ultra-wide input voltage range from 6V to 42V
  • Adjustable output voltage as low as 1.225V
  • 1.5% feedback reference accuracy
  • Operating frequency adjustable between 50kHz and 1MHz with single resistor
  • Controller or peripheral frequency synchronization
  • Adjustable soft-start
  • Emulated current mode control architecture
  • Wide bandwidth error amplifier
  • Built-in protection
  • HTSSOP-20 EP (exposed pad)
  • Create a custom design using the LM25576-Q1 with the WEBENCH Power Designer
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Integrated 42V, 170mΩ N-channel MOSFET
  • Ultra-wide input voltage range from 6V to 42V
  • Adjustable output voltage as low as 1.225V
  • 1.5% feedback reference accuracy
  • Operating frequency adjustable between 50kHz and 1MHz with single resistor
  • Controller or peripheral frequency synchronization
  • Adjustable soft-start
  • Emulated current mode control architecture
  • Wide bandwidth error amplifier
  • Built-in protection
  • HTSSOP-20 EP (exposed pad)
  • Create a custom design using the LM25576-Q1 with the WEBENCH Power Designer

The LM25576-Q1 is an easy-to-use buck regulator which allows users to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6V to 42V, the LM25576-Q1 delivers 3A of continuous output current with an integrated 170mΩ N-Channel MOSFET. The regulator uses an Emulated Current Mode architecture which provides inherent line regulation, tight load transient response, and ease of loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50kHz to 1MHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple ICs from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM25576-Q1 establishes robustness with a cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a power enhanced HTSSOP-20 package featuring an exposed die attach pad for thermal dissipation. The LM25576-Q1 is supported by the full suite of WEBENCH On-Line design tools.

The LM25576-Q1 is an easy-to-use buck regulator which allows users to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6V to 42V, the LM25576-Q1 delivers 3A of continuous output current with an integrated 170mΩ N-Channel MOSFET. The regulator uses an Emulated Current Mode architecture which provides inherent line regulation, tight load transient response, and ease of loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50kHz to 1MHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple ICs from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM25576-Q1 establishes robustness with a cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a power enhanced HTSSOP-20 package featuring an exposed die attach pad for thermal dissipation. The LM25576-Q1 is supported by the full suite of WEBENCH On-Line design tools.
filter 尋找其它 DC/DC 轉換器
下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
LMR33630-Q1 現行 3.8V 至 36V、3A 同步降壓轉換器 Next-generation 3.8-V to 36-V, 3-A synchronous buck converter with ultra-low EMI.

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 21
重要文件 類型 標題 格式選項 日期
* Data sheet LM25576-Q1 42V, 3A Step-Down Switching Regulator datasheet (Rev. A) PDF | HTML 2025年 12月 9日
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 2024年 3月 25日
White paper Overcoming Challenges in Designing Step-Dwn Reg Apps w/40V Input Voltage (Rev. A) 2018年 7月 3日
Application note Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 2014年 9月 12日
Application note AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A) 2013年 5月 6日
Application note AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 2013年 4月 24日
Application note AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 2013年 4月 23日
Application note AN-1197 Selecting Inductors for Buck Converters (Rev. B) 2013年 4月 23日
Application note AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 2013年 4月 23日
Application note AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C) 2013年 4月 23日
Application note AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 2013年 4月 23日
Application note AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 2013年 4月 23日
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 2013年 4月 23日
Application note AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 2013年 4月 23日
Application note Quick Start Guide for a 3 Amp Buck Regulator Using the LM5576 and LM25576 (Rev. B) 2013年 4月 23日
User guide LM25576 Reference Design 6-42V input, 5V 3A output User Guide 2012年 1月 27日
More literature LM25576 Reference Design 6-42V input, 5V 3A output Files 2012年 1月 25日
Application note Understanding and Applying Current-Mode Control Theory 2007年 8月 19日
Application note Input and Output Capacitor Selection 2005年 9月 19日
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 2005年 7月 12日
Application note AN-643 EMI/RFI Board Design (Rev. B) 2004年 5月 3日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

模擬型號

LM25576 Non-Inverting and Inverting PSpice Transient Model (Rev. A)

SNVM306A.ZIP (123 KB) - PSpice Model
下載
模擬型號

LM25576 Non-Inverting and Inverting Unencrypted PSpice Transient Model (Rev. A)

SNVM872A.ZIP (4 KB) - PSpice Model
下載
模擬型號

LM25576 PSpice Average Model

SNVM305.ZIP (57 KB) - PSpice Model
下載
模擬型號

LM25576 Unencrypted PSpice Average Model

SNVM871.ZIP (2 KB) - PSpice Model
下載
CAD/CAE 符號

LM25576 Reference Design 6-42V input, 5V 3A output CAD File

SNVC006.ZIP (647 KB)
下載
計算工具

LM2557X-557XQUICK-CALC — LM(2)557x 快速入門 SIMPLE SWITCHER 元件計算機

下載
計算工具

SIMPLESWITCHER-COMPONENT-CALC — 可下載的 LM(2)557x 快速入門 SIMPLE SWITCHER 元件計算機

下載
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 20 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

內含資訊：
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片