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LM3676

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具有模式控制的 2MHz、600mA 降压直流/直流转换器

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TPS62860 正在供货 具有 I2C/VSEL 接口的 1.75V 至 5.5V 输入、0.6A 超低 IQ 降压转换器 Smaller solution size and low quiescent current with I2C/VSEL interface

LM3676

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产品详情

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 Operating temperature range (°C) -30 to 85 Iq (typ) (A) 0.000016 Duty cycle (max) (%) 100
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 Operating temperature range (°C) -30 to 85 Iq (typ) (A) 0.000016 Duty cycle (max) (%) 100
WSON (NGQ) 8 9 mm² (3 mm × 3 mm)
  • 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.
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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 LM3676 2MHz, 600mA Step-Down DC-DC Converter with Mode Control 数据表 (Rev. C) 2013-5-2
应用手册 Application Note 1536 LM3676 Evaluation Board (cn) 2008-10-14

设计与开发

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参考设计

TIDA-00162 — 适用于汽车全景视图系统的多摄像头、视频接口与控制解决方案

TIDA-00162 集成了适用于汽车全景视图系统的完整摄像头模块、视频接口及控制功能。该参考设计包括四个 1Mp 摄像头 (OmniVision OV10635)、四个串行器 + 电源板和一个配备了 6 个解串行器 + 电源的子板。子板上提供了一个便捷的 FMC 连接器，可将参考设计连接到 FPGA 或 MCU 板以进行视频处理。使用 DS90UB913A-Q1 串行器和 DS90UB914A-Q1 解串器的优势在于，它可与 OmniVision 的摄像头模块无缝连接，让您能够通过一根同轴电缆传输高速数据、进行双向控制和供电。

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WSON (NGQ) 8 Ultra Librarian
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