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

LM3674

正在供貨

采用 SOT 23-5 封裝的 2MHz、600mA 降壓直流/直流轉(zhuǎn)換器

產(chǎn)品詳情

Rating Catalog Topology Buck Iout (max) (A) 0.6 Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 3.3 Vout (min) (V) 1.1 Features Enable, Synchronous Rectification Control mode Voltage mode Switching frequency (min) (kHz) 1600 Switching frequency (max) (kHz) 2600 Operating temperature range (°C) -30 to 85 Iq (typ) (μA) 300 Duty cycle (max) (%) 100 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 0.6 Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 3.3 Vout (min) (V) 1.1 Features Enable, Synchronous Rectification Control mode Voltage mode Switching frequency (min) (kHz) 1600 Switching frequency (max) (kHz) 2600 Operating temperature range (°C) -30 to 85 Iq (typ) (μA) 300 Duty cycle (max) (%) 100 Type Converter
SOT-23 (DBV) 5 8.12 mm2 2.9 x 2.8
  • Input Voltage Range From 2.7 V to 5.5 V
  • 600-mA Maximum Load Current
  • Available in Fixed and Adjustable Output Voltages
    Ranging From 1 V to 3.3 V
  • Operates From a Single Li-Ion Cell Battery
  • Internal Synchronous Rectification for High
    Efficiency
  • Internal Soft-Start
  • 0.01-μA Typical Shutdown Current
  • 2-MHz PWM Fixed Switching Frequency (typical)
  • Current Overload Protection and Thermal
    Shutdown Protection
  • Input Voltage Range From 2.7 V to 5.5 V
  • 600-mA Maximum Load Current
  • Available in Fixed and Adjustable Output Voltages
    Ranging From 1 V to 3.3 V
  • Operates From a Single Li-Ion Cell Battery
  • Internal Synchronous Rectification for High
    Efficiency
  • Internal Soft-Start
  • 0.01-μA Typical Shutdown Current
  • 2-MHz PWM Fixed Switching Frequency (typical)
  • Current Overload Protection and Thermal
    Shutdown Protection

The LM3674 step-down DC-DC converter is optimized for powering low-voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7 V to 5.5 V. It provides up to 600-mA load current over the entire input voltage range. There are several fixed output voltages and adjustable output voltage versions.

The device offers superior features and performance for mobile phones and similar portable systems. During the Pulse Width Modulation (PWM) mode, the device operates at a fixed-frequency of 2 MHz (typical). Internal synchronous rectification provides high efficiency during the PWM mode operation. In shutdown mode, the device turns off and reduces battery consumption to 0.01 µA (typical).

The LM3674 is available in a 5-pin SOT-23 package. A high switching frequency of 2 MHz (typical) allows use of only three tiny external surface-mount components, an inductor and two ceramic capacitors.

The LM3674 step-down DC-DC converter is optimized for powering low-voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7 V to 5.5 V. It provides up to 600-mA load current over the entire input voltage range. There are several fixed output voltages and adjustable output voltage versions.

The device offers superior features and performance for mobile phones and similar portable systems. During the Pulse Width Modulation (PWM) mode, the device operates at a fixed-frequency of 2 MHz (typical). Internal synchronous rectification provides high efficiency during the PWM mode operation. In shutdown mode, the device turns off and reduces battery consumption to 0.01 µA (typical).

The LM3674 is available in a 5-pin SOT-23 package. A high switching frequency of 2 MHz (typical) allows use of only three tiny external surface-mount components, an inductor and two ceramic capacitors.

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類型 標(biāo)題 下載最新的英語版本 日期
* 數(shù)據(jù)表 LM3674 2-MHz, 600-mA Step-Down DC-DC Converter in SOT-23 數(shù)據(jù)表 (Rev. G) PDF | HTML 2015年 4月 24日
應(yīng)用手冊(cè) TI 降壓開關(guān)直流/直流轉(zhuǎn)換器應(yīng)用手冊(cè)的快速參考指南 (Rev. B) PDF | HTML 英語版 (Rev.B) PDF | HTML 2022年 7月 8日
設(shè)計(jì)指南 2-Port USB 3.0 Hub (TIDA-00287) 2014年 8月 1日
EVM 用戶指南 AN-1427 LM3674 Evaluation Board (Rev. K) 2013年 4月 30日
應(yīng)用手冊(cè) Application Note 1427 LM3674 Evaluation Board (cn) 2008年 10月 14日

設(shè)計(jì)和開發(fā)

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評(píng)估板

LM3674MF-1.8EV — 采用 SOT 23-5 封裝的 2MHz、600mA 降壓 DC-DC 轉(zhuǎn)換器

The LM3674 evaluation board is a working demonstration of a step down DC-DC converter. The application note contains information about the evaluation board. The LM3674 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails (...)

用戶指南: PDF
TI.com 上無現(xiàn)貨
參考設(shè)計(jì)

TIDA-00287 — 2 端口 USB 3.0 集線器

這項(xiàng)經(jīng)過驗(yàn)證的參考設(shè)計(jì)是一款符合 USB 3.0 標(biāo)準(zhǔn)的雙端口集線器。該設(shè)計(jì)可在上游端口上提供同步 SuperSpeed 和高速/全速連接，并且能在下游端口上提供 SuperSpeed、高速、全速或低速連接。

該集線器設(shè)計(jì)可為每個(gè)下游端口提供電源控制，還可以提供過流保護(hù)和 ESD 保護(hù)。

設(shè)計(jì)指南: PDF
原理圖: PDF
封裝 引腳 CAD 符號(hào)、封裝和 3D 模型
SOT-23 (DBV) 5 Ultra Librarian

訂購(gòu)和質(zhì)量

包含信息：
  • RoHS
  • REACH
  • 器件標(biāo)識(shí)
  • 引腳鍍層/焊球材料
  • MSL 等級(jí)/回流焊峰值溫度
  • MTBF/時(shí)基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測(cè)
包含信息：
  • 制造廠地點(diǎn)
  • 封裝廠地點(diǎn)

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