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

LM46002

現行

3.5V 至 60V、2A 同步降壓電壓轉換器

立即訂購
產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但針腳輸出與所比較的裝置不同。
LMR36520 現行 具有 26uA IQ 的 SIMPLE SWITCHER® 4.2V 至 65V、2A 同步降壓轉換器 Higher input voltage rating, easy to use SO-8 package and an FPWM option.
TLVM13620 現行 採用 4-mm x 6-mm x 1.8-mm 封裝的 3.6-V 至 36-V 輸入、1-V 至 6-V 輸出、2-A 降壓模組 Smaller design with an integrated-inductor power module.

LM46002

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 60 Vin (min) (V) 3.5 Vout (max) (V) 28 Vout (min) (V) 1 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000027 Duty cycle (max) (%) 99
Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 60 Vin (min) (V) 3.5 Vout (max) (V) 28 Vout (min) (V) 1 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000027 Duty cycle (max) (%) 99
HTSSOP (PWP) 16 32 mm² (5 mm × 6.4 mm)
  • 27-µA Quiescent current in regulation
  • High efficiency at light load (DCM and PFM)
  • Meets EN55022/CISPR 22 EMI standards
  • Integrated synchronous rectification
  • Adjustable frequency range: 200 kHz to 2.2 MHz (500 kHz default)
  • Frequency synchronization to external clock
  • Internal compensation
  • Stable with almost any combination of ceramic, polymer, tantalum, and aluminum capacitors
  • Power-good flag
  • Soft start into prebiased load
  • Internal soft start: 4.1 ms
  • Extendable soft-start time by external capacitor
  • Output voltage tracking capability
  • Precision enable to program system UVLO
  • Output short-circuit protection with hiccup mode
  • Overtemperature thermal shutdown protection
  • Create a custom design using the LM46002 with the WEBENCH® Power Designer
  • 27-µA Quiescent current in regulation
  • High efficiency at light load (DCM and PFM)
  • Meets EN55022/CISPR 22 EMI standards
  • Integrated synchronous rectification
  • Adjustable frequency range: 200 kHz to 2.2 MHz (500 kHz default)
  • Frequency synchronization to external clock
  • Internal compensation
  • Stable with almost any combination of ceramic, polymer, tantalum, and aluminum capacitors
  • Power-good flag
  • Soft start into prebiased load
  • Internal soft start: 4.1 ms
  • Extendable soft-start time by external capacitor
  • Output voltage tracking capability
  • Precision enable to program system UVLO
  • Output short-circuit protection with hiccup mode
  • Overtemperature thermal shutdown protection
  • Create a custom design using the LM46002 with the WEBENCH® Power Designer

The LM46002 regulator is an easy-to-use synchronous step-down DC/DC converter capable of driving up to 2 A of load current from an input voltage ranging from 3.5 V to 60 V. The LM46002 provides exceptional efficiency, output accuracy and drop-out voltage in a very small solution size. An extended family is available in various load current options and 36-V maximum input voltage in pin-to-pin compatible packages, including LM46001, LM46000, LM43603, LM43602, LM43601 and LM43600. Peak-current-mode control is employed to achieve simple control-loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft start, extendable soft start, and tracking provide a flexible and easy-to-use platform for a wide range of applications. Discontinuous conduction and automatic frequency reduction at light loads improve light load efficiency. The family requires few external components. Pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCC undervoltage lockout, cycle-by-cycle current limit, and output short-circuit protection. The LM46002 device is available in the 16-lead HTSSOP / PWP package (6.6 mm × 5.1 mm × 1.2 mm) with 0.65-mm lead pitch.

space

space

space

space

The LM46002 regulator is an easy-to-use synchronous step-down DC/DC converter capable of driving up to 2 A of load current from an input voltage ranging from 3.5 V to 60 V. The LM46002 provides exceptional efficiency, output accuracy and drop-out voltage in a very small solution size. An extended family is available in various load current options and 36-V maximum input voltage in pin-to-pin compatible packages, including LM46001, LM46000, LM43603, LM43602, LM43601 and LM43600. Peak-current-mode control is employed to achieve simple control-loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft start, extendable soft start, and tracking provide a flexible and easy-to-use platform for a wide range of applications. Discontinuous conduction and automatic frequency reduction at light loads improve light load efficiency. The family requires few external components. Pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCC undervoltage lockout, cycle-by-cycle current limit, and output short-circuit protection. The LM46002 device is available in the 16-lead HTSSOP / PWP package (6.6 mm × 5.1 mm × 1.2 mm) with 0.65-mm lead pitch.

space

space

space

space
filter 尋找其它 DC/DC 轉換器
下載 觀看有字幕稿的影片 影片

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 28
重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LM46002 3.5-V to 60-V, 2-A Synchronous Step-Down Voltage Converter datasheet (Rev. C) PDF | HTML 2019/4/5
應用說明 Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 2024/3/25
應用說明 Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) PDF | HTML 2021/7/26
選擇指南 Buck Converter Quick Reference Guide (Rev. B) 2021/4/8
應用說明 Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B) 2019/3/12
應用說明 Differences Between LM4600x/LM4360x A and Non-A OPNs 2018/3/27
白皮書 Synchronous Rectification in High-Performance Power Converter Design (Rev. A) PDF | HTML 2016/9/15
更多文件說明 SIMPLE SWITCHER Synchronous Regulator Series (Rev. B) 2016/2/8
技術文章 Inverting made simple by unleashing the buck PDF | HTML 2015/5/19
應用說明 Inverting Applications Made SIMPLE With LM4600x and LM4360x (Rev. B) 2015/2/20
應用說明 Thermal Design Made Simple With LM43603 and LM46002 2014/9/15
應用說明 Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 2014/9/12
應用說明 Compensation Made SIMPLE With LM4360x, LM4600x 2014/7/29
應用說明 AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A) 2013/5/6
應用說明 AN-1533 Overvoltage Protection Circuit for Automotive Load Dump (Rev. B) 2013/5/6
應用說明 AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 2013/4/24
應用說明 AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 2013/4/23
應用說明 AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 2013/4/23
應用說明 AN-1197 Selecting Inductors for Buck Converters (Rev. B) 2013/4/23
應用說明 AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C) 2013/4/23
應用說明 AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 2013/4/23
應用說明 AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 2013/4/23
應用說明 AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 2013/4/23
應用說明 AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 2013/4/23
應用說明 Understanding and Applying Current-Mode Control Theory 2007/8/19
應用說明 Input and Output Capacitor Selection 2005/9/19
更多文件說明 SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 2005/7/12
應用說明 AN-643 EMI/RFI Board Design (Rev. B) 2004/5/3

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)。

開發板

LM46002PWPEVM — LM46002PWP 同步降壓轉換器評估模組

德州儀器 LM46002PWPEVM 評估模組 (EVM) 是一個已完成組裝並經過測試的電路，用於評估 60V 同步降壓轉換器 LM46002PWP。此 EVM 可在 3.5V 至 60V 輸入之間運作，並在 2A 時提供 5V 輸出。

使用指南: PDF
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
模擬型號

LM46002 PSpice Average Model

SNVM576.ZIP (88 KB) - PSpice 模型
支援產品和硬體
支援產品和硬體
模擬型號

LM46002 TINA-TI Transient Reference Design

SNVM606.TSC (87 KB) - TINA-TI 參考設計
支援產品和硬體
模擬型號

LM46002 TINA-TI Transient Spice Model

SNVM610.ZIP (52 KB) - TINA-TI Spice 模型
支援產品和硬體
支援產品和硬體
模擬型號

LM46002 Unencrypted PSpice Average Model

SNVM730.ZIP (1 KB) - PSpice 模型
支援產品和硬體
參考設計

TIDA-00204 — 符合 EMI/EMC 規範的工業溫度雙連接埠 Gigabit 乙太網路 PHY 參考設計

此設計允許對具有整合式乙太網路 MAC 和交換器的兩種工業級 DP83867IR Gigabit 乙太網路 PHY 和 Sitara™ 主機處理器進行性能評估。本產品的開發符合 EMI 及 EMC 的工業要求。應用韌體為 PHY、UDP 和 TCP/IP 堆疊以及 HTTP Web 伺服器範例實作了驅動程式。主機處理器配置為從板載 SD 卡啟動預先安裝的韌體。USB 虛擬 COM 連接埠提供對 PHY 暫存器的可選存取。JTAG 介面允許自行開發韌體。

支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 16 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

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