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LM27213SQ

  • 描述:输出类别: 晶体管驱动器 拓扑结构: 美元 输出配置: 阳性的 电源电压: 4.5伏~5.5伏 供应商设备包装: 48-WQFN(7x7)
  • 品牌:
  • 交期:5-7 工作日
渠道:
  • 自营
  • 得捷
  • 贸泽

起订量: 139

数量 单价 合计
139+ 15.71709 2184.67592
  • 库存: 0
  • 单价: ¥15.71709
  • 数量:
    - +
  • 总计: ¥2,184.68
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规格参数

  • 部件状态 可供货
  • 输出类别 晶体管驱动器
  • 功能 降压
  • 输出配置 阳性的
  • 拓扑结构 美元
  • 输出数量 one
  • 输出阶段 one
  • 同步整流装置 Yes
  • 串口 -
  • 安装类别 表面安装
  • 时钟同步
  • 开关频率 -
  • 最大占空比 -
  • 包装/外壳 48-WFQFN外露衬垫
  • 控制功能特性 电流限制、启用、电源良好、软启动
  • 制造厂商
  • 电源电压 (Vcc/Vdd) 4.75V ~ 6V
  • 工作温度 -5摄氏度~105摄氏度(TA)
  • 供应商设备包装 48-WQFN(7x7)
  • 电源电压 4.5伏~5.5伏

LM27213SQ 产品详情

The LM27213SQ is a single-phase synchronous buck regulator controller designed to fully support a portable microprocessor. On-chip gate drive makes for a compact, single chip solution. Output currents in excess of 25 Amps are possible.

The IC employs a current mode hysteretic control mechanism. Inductor current is sensed through a low value sense resistor.

The LM27213SQ will operate over an input voltage range of 5V to 30V. The output voltage is programmed through 6 Voltage Identification (VID) pins and ranges from 0.700V to 1.708V in 64 steps.

Since the error in the output voltage directly sets the inductor current, the dynamic response to a large, fast load transient is close to a square wave. This is optimal for mode transition requirements. Also, due to the intrinsic input voltage feedforward characteristic of hysteretic control, the line transient response is excellent as well.

The IC provides cycle-by-cycle peak current limit, over-voltage protection, and a power good signal. The LM27213SQ fully supports the Stop CPU and Sleep modes offered by some processors. When enabled, the IC enters a power-saving “diode emulator” mode which helps prolong battery runtime for portable systems.

The LM27213SQ also has a soft start feature for the external adjustment of soft start speed.

Feature

  • Ideal Load and Line Transient Responses
  • 5V to 30V Input Range
  • On-Chip Gate Drive
  • Convenient CLK_EN# Signal
  • Input Under-Voltage Lockout
  • High Light-Load Efficiency
  • Adjustable Analog Soft Start
  • Peak Current Limit
  • Over-Voltage Protection
  • Error Correction for Good Static Accuracy
  • ±1% DAC Accuracy Over Temperature
  • Interfaces with the LM2647 System Supply
  • Available in TSSOP or WQFN Packages


LM27213SQ所属分类:DC - DC开关控制器,LM27213SQ 由 设计生产,可通过久芯网进行购买。LM27213SQ价格参考¥15.717093,你可以下载 LM27213SQ中文资料、PDF数据手册、Datasheet数据手册功能说明书,可查询LM27213SQ规格参数、现货库存、封装信息等信息!
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