LM3676

正在供貨

具有模式控制的 2MHz、600mA 降壓直流/直流轉換器

可提供此產品的更新版本

open-in-new 比較替代產品
功能與比較器件相同，但引腳排列有所不同
TPS62860 正在供貨 具有 I2C/VSEL 接口的 1.75V 至 5.5V 輸入、0.6A 超低 IQ 降壓轉換器 Smaller solution size and low quiescent current with I2C/VSEL interface

產品詳情

Rating Catalog Topology Buck Iout (max) (A) 0.6 Vin (max) (V) 5.5 Vin (min) (V) 2.9 Vout (max) (V) 3.3 Vout (min) (V) 1.1 Features Enable, Forced PWM, Light Load Efficiency, Light load efficiency, 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) 16 Duty cycle (max) (%) 100 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 0.6 Vin (max) (V) 5.5 Vin (min) (V) 2.9 Vout (max) (V) 3.3 Vout (min) (V) 1.1 Features Enable, Forced PWM, Light Load Efficiency, Light load efficiency, 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) 16 Duty cycle (max) (%) 100 Type Converter
WSON (NGQ) 8 9 mm2 3 x 3
  • 16μA Typical Quiescent Current
  • 600mA Maximum Load Capability
  • 2MHz Typical PWM Fixed Switching Frequency
  • Automatic PFM/PWM Mode Switching or Forced PWM Mode
  • Available in Fixed Output Voltages and Adjustable Version
  • 8-Lead Non-Pullback WSON Package
  • Internal Synchronous Rectification for High Efficiency
  • Internal Soft Start
  • 0.01μA Typical Shutdown Current
  • Operates From a Single Li-Ion Cell Battery
  • Only Three Tiny Surface-Mount External Components Required (One Inductor, Two Ceramic Capacitors)
  • Current Overload and Thermal Shutdown Protection

All trademarks are the property of their respective owners.

  • 16μA Typical Quiescent Current
  • 600mA Maximum Load Capability
  • 2MHz Typical PWM Fixed Switching Frequency
  • Automatic PFM/PWM Mode Switching or Forced PWM Mode
  • Available in Fixed Output Voltages and Adjustable Version
  • 8-Lead Non-Pullback WSON Package
  • Internal Synchronous Rectification for High Efficiency
  • Internal Soft Start
  • 0.01μA Typical Shutdown Current
  • Operates From a Single Li-Ion Cell Battery
  • Only Three Tiny Surface-Mount External Components Required (One Inductor, Two Ceramic Capacitors)
  • Current Overload and Thermal Shutdown Protection

All trademarks are the property of their respective owners.

The LM3676 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.9V to 5.5V. It provides up to 600mA load current, over the entire input voltage range. There are several different fixed voltage output options available as well as an adjustable output voltage version.

The LM3676 has a mode-control pin that allows the user to select continuous Pulse Width Modulation (PWM) mode over the complete load range or an intelligent PFM-PWM mode that changes modes depending on the load. PWM mode offers superior efficiency under high load conditions (>100mA) and the lowest output noise performance. In Auto mode, PFM-PWM, hysteretic PFM extends the battery life through reduction of the quiescent current to 16µA (typ.) during light loads and system standby.

The LM3676 is available in a 8-lead non-pullback WSON package in leaded (PB) and lead-free (NO PB) versions. A high switching frequency of 2 MHz (typ) allows use of tiny surface-mount components, an inductor and two ceramic capacitors.

The LM3676 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.9V to 5.5V. It provides up to 600mA load current, over the entire input voltage range. There are several different fixed voltage output options available as well as an adjustable output voltage version.

The LM3676 has a mode-control pin that allows the user to select continuous Pulse Width Modulation (PWM) mode over the complete load range or an intelligent PFM-PWM mode that changes modes depending on the load. PWM mode offers superior efficiency under high load conditions (>100mA) and the lowest output noise performance. In Auto mode, PFM-PWM, hysteretic PFM extends the battery life through reduction of the quiescent current to 16µA (typ.) during light loads and system standby.

The LM3676 is available in a 8-lead non-pullback WSON package in leaded (PB) and lead-free (NO PB) versions. A high switching frequency of 2 MHz (typ) allows use of tiny surface-mount components, an inductor and two ceramic capacitors.
下載 觀看帶字幕的視頻 視頻

技術文檔

star =有關此產品的 TI 精選熱門文檔
未找到結果。請清除搜索并重試。
查看全部 3
類型 標題 下載最新的英語版本 日期
* 數據表 LM3676 2MHz, 600mA Step-Down DC-DC Converter with Mode Control 數據表 (Rev. C) 2013年 5月 2日
EVM 用戶指南 AN-1536 LM3676 Evaluation Board (Rev. D) 2013年 4月 30日
應用手冊 Application Note 1536 LM3676 Evaluation Board (cn) 2008年 10月 14日

設計和開發

如需其他信息或資源，請點擊以下任一標題進入詳情頁面查看（如有）。

參考設計

TIDA-00162 — 用于汽車應用的環視解決方案

TIDA-00162 是適用于汽車應用的完整環視系統。此參考設計包括四個 1 Mp 攝像機 (OmniVision OV10635)、四個串行器+電源板和一個具有 6 個解串器+電源的子板。子板上提供方便的 FMC 控制器，可以將此參考設計連接到 FPGA 或 MCU 板以進行視頻處理。使用 DS90UB913A-Q1 串行器和 DS90UB914A-Q1 解串器的優點是它可以與 OmniVision 的攝像機模塊無縫連接，允許您通過單條同軸電纜傳輸高速數據、雙向控制和電力。
設計指南: PDF
原理圖: PDF
封裝 引腳 CAD 符號、封裝和 3D 模型
WSON (NGQ) 8 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

推薦產品可能包含與 TI 此產品相關的參數、評估模塊或參考設計。

支持和培訓

視頻