主页 电源管理 AC/DC 和 DC/DC 转换器（集成 FET）
主页
电源管理
AC/DC 和 DC/DC 转换器（集成 FET）
新

LM5168E

正在供货

6V-to-115V wide VIN, 300mA DC/DC converter with Fly-Buck™ converter capability

立即订购
数据表

LM5168E

正在供货
数据表 立即订购

产品详情

Rating Catalog Topology Buck, Flybuck Switch current limit (typ) (A) 0.3 Iout (max) (A) 0.3 Vin (max) (V) 115 Vin (min) (V) 6 Vout (max) (V) 48 Vout (min) (V) 1.2 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO adjustable Control mode Constant on-time (COT) Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 10 Duty cycle (max) (%) 99 Type Converter
Rating Catalog Topology Buck, Flybuck Switch current limit (typ) (A) 0.3 Iout (max) (A) 0.3 Vin (max) (V) 115 Vin (min) (V) 6 Vout (max) (V) 48 Vout (min) (V) 1.2 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO adjustable Control mode Constant on-time (COT) Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 10 Duty cycle (max) (%) 99 Type Converter
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • Functional Safety-Capable
  • Designed for reliability in rugged applications
    • 6V to 115V wide input voltage range
    • –55°C to +150°C junction temperature range
    • Fixed 3ms internal soft-start timer
    • Peak and valley current-limit protection
    • Input UVLO and thermal shutdown protection
  • Designed for scalable industrial power supplies and battery packs
    • 50ns low minimum on and off times
    • 1MHz adjustable switching frequency
    • Diode emulation for high light-load efficiency
    • 10µA sleep current in auto mode
    • 3µA shutdown quiescent current
    • Pin-to-pin compatible with LM5164, LM5163, and LM5013
    • Similar pinout and functionality to LM5017 and LM34927
  • Integration reduces design size and cost
    • COT mode control architecture
    • Integrated 1.9Ω NFET buck switch
    • Integrated 0.71Ω NFET synchronous rectifier
    • 1.2V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
    • Open-drain power-good indicator
    • Package: SOIC PowerPAD™-8 integrated circuit package with 1.27mm pin spacing
  • Functional Safety-Capable
  • Designed for reliability in rugged applications
    • 6V to 115V wide input voltage range
    • –55°C to +150°C junction temperature range
    • Fixed 3ms internal soft-start timer
    • Peak and valley current-limit protection
    • Input UVLO and thermal shutdown protection
  • Designed for scalable industrial power supplies and battery packs
    • 50ns low minimum on and off times
    • 1MHz adjustable switching frequency
    • Diode emulation for high light-load efficiency
    • 10µA sleep current in auto mode
    • 3µA shutdown quiescent current
    • Pin-to-pin compatible with LM5164, LM5163, and LM5013
    • Similar pinout and functionality to LM5017 and LM34927
  • Integration reduces design size and cost
    • COT mode control architecture
    • Integrated 1.9Ω NFET buck switch
    • Integrated 0.71Ω NFET synchronous rectifier
    • 1.2V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
    • Open-drain power-good indicator
    • Package: SOIC PowerPAD™-8 integrated circuit package with 1.27mm pin spacing

The LM5168E is an extended temperature range, (–55°C to +150°C) synchronous buck converter designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on time of 50ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48V nominal input to low-voltage rails for reduced system complexity and design cost. The LM5168E operates during input voltage dips as low as 6V, at nearly 100% duty cycle if needed, making the device an excellent choice for wide input supply range industrial and high cell count battery pack applications.

With integrated high-side and low-side power MOSFETs, the LM5168E delivers up to 0.3A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. The LM5168E is available in the auto mode version, which enables ultra-low IQ and diode emulation mode operation for high light-load efficiency.

The LM5168E is an extended temperature range, (–55°C to +150°C) synchronous buck converter designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on time of 50ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48V nominal input to low-voltage rails for reduced system complexity and design cost. The LM5168E operates during input voltage dips as low as 6V, at nearly 100% duty cycle if needed, making the device an excellent choice for wide input supply range industrial and high cell count battery pack applications.

With integrated high-side and low-side power MOSFETs, the LM5168E delivers up to 0.3A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. The LM5168E is available in the auto mode version, which enables ultra-low IQ and diode emulation mode operation for high light-load efficiency.
filter 查找其他 AC/DC 和 DC/DC 转换器（集成 FET）
下载 观看带字幕的视频 视频

技术文档

star =有关此产品的 TI 精选热门文档
未找到结果。请清除搜索并重试。
查看全部 1
类型 标题 下载最新的英语版本 日期
* 数据表 LM5168E 115V, 0.3A, Synchronous Buck Converter 数据表 PDF | HTML 2025年 8月 26日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

LM5168FEVM — LM5168 115V Fly-Buck 稳压器评估模块

LM5168FEVM 评估模块 (EVM) 是一款完全组装且经过测试的电路，用于评估 LM5168。后者是一款采用同步整流技术的 115V 直流/直流 Fly-Buck 稳压器，可在小尺寸内实现高转换效率。该 EVM 在 20V 至 115V（最大绝对电压为 120V）的宽输入电压范围内工作，能够在高达 0.25A 的电流下以 750kHz 开关频率提供 10V 稳压输出。通过 Fly-Buck 拓扑提供额外的 10V 浮动输出。输出电压具有优于 1.5% 的设定点精度，可使用外部电阻分压器进行调节。模块设计采用 LM5168-Q1 (...)
用户指南: PDF | HTML
TI.com 上无现货
评估板

LM5168PEVM — LM5168P 115V 直流/直流降压稳压器评估模块

LM5168P 评估模块 (EVM) 是一款 115V 直流/直流降压稳压器，采用同步整流实现小尺寸、高转换效率。该 EVM 在 20V 至 115V（最大绝对电压为 120V）的宽输入电压范围内工作，能够在高达 0.3A 的电流下以 500kHz 开关频率提供 12V 稳压输出。输出电压具有优于 1.5% 的设定点精度，可使用外部电阻分压器进行调节。模块设计采用 LM5168P 同步降压转换器，支持宽输入电压范围、宽占空比范围、集成高侧和低侧功率 MOSFET、高级过流保护和精密使能。

用户指南: PDF | HTML
TI.com 上无现货
封装 引脚 CAD 符号、封装和 3D 模型
HSOIC (DDA) 8 Ultra Librarian
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 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
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

视频