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LM3676

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具有模式控制的 2MHz、600mA 降压 DC-DC 控制器

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功能与比较器件相同但引脚有所不同
TPS62860 正在供货 具有 I2C/VSEL 接口的1.75V 至5.5V、0.6A 超低 IQ 降压转换器 Smaller solution size and low quiescent current with I2C/VSEL interface

产品详情

Vin (min) (V) 2.9 Vin (max) (V) 5.5 Vout (min) (V) 1.1 Vout (max) (V) 3.3 Iout (max) (A) 0.6 Iq (typ) (mA) 0.016 Switching frequency (min) (kHz) 1600 Switching frequency (max) (kHz) 2600 Features Enable, Forced PWM, Light load efficiency, Synchronous Rectification Operating temperature range (°C) -30 to 85 Rating Catalog Regulated outputs (#) 1 Control mode Voltage mode Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 2.9 Vin (max) (V) 5.5 Vout (min) (V) 1.1 Vout (max) (V) 3.3 Iout (max) (A) 0.6 Iq (typ) (mA) 0.016 Switching frequency (min) (kHz) 1600 Switching frequency (max) (kHz) 2600 Features Enable, Forced PWM, Light load efficiency, Synchronous Rectification Operating temperature range (°C) -30 to 85 Rating Catalog Regulated outputs (#) 1 Control mode Voltage mode 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.

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类型 标题 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年 5月 2日
EVM 用户指南 AN-1536 LM3676 Evaluation Board (Rev. D) 2013年 4月 30日
应用手册 Application Note 1536 LM3676 Evaluation Board (cn) 2008年 10月 14日

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参考设计

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TIDA-00162 是适用于汽车应用的完整环视系统。此参考设计包括四个 1 Mp 摄像机 (OmniVision OV10635)、四个串行器+电源板和一个具有 6 个解串器+电源的子板。子板上提供方便的 FMC 控制器,可以将此参考设计连接到 FPGA 或 MCU 板以进行视频处理。使用 DS90UB913A-Q1 串行器和 DS90UB914A-Q1 解串器的优点是它可以与 OmniVision 的摄像机模块无缝连接,允许您通过单条同轴电缆传输高速数据、双向控制和电力。
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WSON (NGQ) 8 查看选项

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  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
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  • 持续可靠性监测
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  • 封装厂地点

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