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LTC3850IUF#PBF

  • 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 开关频率: 250千赫兹~780千赫兹 电源电压: 4.75伏~5.25伏 供应商设备包装: 28-QFN(4x4)
  • 品牌: 模拟器件公司 (Analog)
  • 交期:5-7 工作日
渠道:
  • 自营
  • 得捷
  • 贸泽

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起订量: 1

数量 单价 合计
1+ 49.90358 49.90358
10+ 45.06532 450.65324
25+ 42.96778 1074.19450
100+ 37.30817 3730.81780
250+ 35.63101 8907.75300
500+ 32.62564 16312.82150
  • 库存: 195
  • 单价: ¥49.90358
  • 数量:
    - +
  • 总计: ¥49.90
在线询价

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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
  • 同步整流装置 Yes
  • 串口 -
  • 工作温度 -40摄氏度~85摄氏度(TA)
  • 安装类别 表面安装
  • 时钟同步
  • 输出数量 two
  • 制造厂商 模拟器件公司 (Analog)
  • 输出阶段 two
  • 控制功能特性 电流限制、启用、频率控制、电源良好、软启动、跟踪
  • 电源电压 (Vcc/Vdd) 4伏~30伏
  • 包装/外壳 28-WFQFN外露焊盘
  • 开关频率 250千赫兹~780千赫兹
  • 最大占空比 97.2%
  • 供应商设备包装 28-QFN(4x4)
  • 电源电压 4.75伏~5.25伏

LTC3850IUF#PBF 产品详情

The LTC3850IUF is a high performance dual synchronous step-down switching regulator controller that drives all N-channel power MOSFET stages. A constant-frequency current mode architecture allows a phase-lockable frequency of up to 780kHz. Power loss and supply noise are minimized by operating the two controller output stages out of phase.

OPTI-LOOP® compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3850IUF features a precision 0.8V reference and a power good output indicator. A wide 4V to 24V (28V maximum/30V for LTC3850I) input supply range encompasses most battery chemistries and intermediate bus voltages.

Independent TK/SS pins for each controller ramp the output voltages during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions. The MODE/PLLIN pin selects among Burst Mode® operation, pulse-skipping mode, or continuous inductor current mode and allows the IC to be synchronized to an external clock.

The LTC3850IUF is available in low profile 28-pin 4mm x 4mm, 4mm x 5mm QFN and narrow SSOP packages.

Features LTC3850SSOP-28 and QFN-28 PackagesLTC3850-1 ILIM function replaced with an EXTVCC function, SSOP-28 package onlyLTC3850-2 The LTC3850-2 is identical to the LTC3850-1 SSOP-28, except they have different pin-outs

Feature

  • Dual, 180° Phased Controllers Reduce Required
  • Input Capacitance and Power Supply Induced Noise
  • High Efficiency: Up to 95%
  • RSENSE or DCR Current Sensing
  • ±1% 0.8V Output Voltage Accuracy
  • Phase-Lockable Fixed Frequency 250kHz to 780kHz
  • Supports Pre-Biased Output
  • Dual N-Channel MOSFET Synchronous Drive
  • Wide VIN Range: 4V to 24V (30V for LTC3850I) Operation
  • Adjustable Soft-Start Current Ramping or Tracking
  • Foldback Output Current Limiting
  • Output Overvoltage Protection
  • Power Good Output Voltage Monitor
  • 28-Pin 4mm × 4mm, 4mm × 5mm QFN and Narrow SSOP Packages

Applications

  • Notebook and Palmtop Computers
  • Portable Instruments
  • Battery-Operated Digital Devices
  • DC Power Distribution Systems


(Picture: Pinout)


LTC3850IUF#PBF所属分类:DC - DC开关控制器,LTC3850IUF#PBF 由 模拟器件公司 (Analog) 设计生产,可通过久芯网进行购买。LTC3850IUF#PBF价格参考¥49.903581,你可以下载 LTC3850IUF#PBF中文资料、PDF数据手册、Datasheet数据手册功能说明书,可查询LTC3850IUF#PBF规格参数、现货库存、封装信息等信息!

模拟器件公司 (Analog)

模拟器件公司 (Analog)

模拟设备公司(NASDAQ:ADI)在设计、制造和营销几乎所有类型的电子设备中使用的高性能模拟、混合信号和数字信号处理(DSP)集成电路(IC)的广泛组合方面处于世界领先地位。自1965年成立以来,他们...

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