- 制造厂商:TI
- 产品类别:电源管理
- 技术类目:直流/直流开关稳压器 - 降压稳压器
- 功能描述:6V 至 100V 宽输入电压、电流模式同步降压控制器
- 点击这里打开及下载LM5116的技术文档资料
- TI代理渠道,提供当日发货、严格的质量标准,满足您的目标价格
The LM5116 is a synchronous buck controller intended for step-down regulator applications from a high-voltage or widely varying input supply. The control method is based upon current mode control utilizing an emulated current ramp. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting, and ease-of-loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high-input voltage applications.
The operating frequency is programmable from 50 kHz to 1 MHz. The LM5116 drives external high-side and low-side NMOS power switches with adaptive dead-time control. A user-selectable diode emulation mode enables discontinuous mode operation, for improved efficiency at light load conditions. A low quiescent current shutdown disables the controller and consumes less than 10 µA of total input current.
Additional features include a high-voltage bias regulator, automatic switch-over to external bias for improved efficiency, thermal shutdown, frequency synchronization, cycle-by-cycle current limit, and adjustable line undervoltage lockout. The device is available in a power enhanced HTSSOP-20 package featuring an exposed die attach pad to aid thermal dissipation.
- Emulated Peak Current Mode
- Wide Operating Range Up to 100 V
- Low IQ Shutdown (< 10 μA)
- Drives Standard or Logic Level MOSFETs
- Robust 3.5-A Peak Gate Drive
- Free-run or Synchronous Operation to 1 MHz
- Optional Diode Emulation Mode
- Programmable Output from 1.215 V to 80 V
- Precision 1.5% Voltage Reference
- Programmable Current Limit
- Programmable Soft-Start
- Programmable Line Undervoltage Lockout
- Automatic Switch to External Bias Supply
- HTSSOP-20 Exposed Pad
- Thermal Shutdown
- Create a Custom Design Using the LM5116 with the WEBENCH Power Designer
- Vin (Min) (V)
- 6
- Vin (Max) (V)
- 100
- Vout (Min) (V)
- 1.215
- Vout (Max) (V)
- 80
- Iout (Max) (A)
- 20
- Iq (Typ) (uA)
- 4600
- Switching frequency (Min) (kHz)
- 50
- Switching frequency (Max) (kHz)
- 1000
- Features
- Adjustable Current Limit, Enable, Frequency Synchronization, Light Load Efficiency, Synchronous Rectification, UVLO Adjustable
- Regulated outputs (#)
- 1
- Number of phases
- 1
- Rating
- Catalog
LM5116的完整型号有:LM5116MH/NOPB、LM5116MHX/NOPB、LM5116MH、LM5116MHX,以下是这些产品的关键参数及官网采购报价:
LM5116MH/NOPB,工作温度:-40 to 150,封装:HTSSOP (PWP)-20,包装数量MPQ:73个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM5116MH/NOPB的批量USD价格:2.812(1000+)
LM5116MHX/NOPB,工作温度:-40 to 150,封装:HTSSOP (PWP)-20,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM5116MHX/NOPB的批量USD价格:2.343(1000+)
LM5116MH,工作温度:-40 to 150,封装:HTSSOP (PWP)-20,包装数量MPQ:73个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SNPB,TI官网LM5116MH的批量USD价格:3.866(1000+)
LM5116MHX,工作温度:-40 to 150,封装:HTSSOP (PWP)-20,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SNPB,TI官网LM5116MHX的批量USD价格:3.397(1000+)
LM5116-12EVAL — LM5116-12 评估板
The LM5116-12 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM5116 controller IC. The evaluation board provides a 12V output with a 5A current capability. The operating input voltage ranges (...)
LM5116EVAL — 宽范围同步降压控制器评估模块
LM5116 Wide Range Synchronous Buck Controller
LM5116 TINA-TI Transient Reference Design (Rev. B)
PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。借助?PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。
在?PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
LM5116-5116WG-25116DESIGN-CALC — LM(2)5116/WG 快速入门组件计算器
Welcome to the LM5116, LM5116WG and LM25116 Quickstart Design Tool. This standalone tool assists the power supply engineer with the design of a DC/DC buck regulator based on a synchronous buck controller from this product family. As such, the user can expeditiously arrive at an optimized design to (...)PMP11257 — 4 类 PoE 同步降压转换器 (12V/2A) 参考设计
LM5116 同步降压控制器可为非隔离型 PoE PD 应用提供高效率解决方案。TPS2378 PoE PD 控制器可执行符合 IEEE802.3at 标准的 4 类 PoE PD 必需的所有功能。此转换器非常适用于需要最佳效率且无需隔离的任何 PoE 应用。PMP9581_REVB — 具有耦合电感的 40W 同步 ZETA 转换器参考设计
此款耦合电感器 13.2V/4A 同步 ZETA 转换器实现了大于 95% 的满载效率。对于大于 10V 的输入电压,此设计能够产生 5A 输出。它充分利用所有表面贴装组件,可维持低温升,并能应对高峰值负载瞬变。请参阅 PMP9581 REVC 以了解这一包含单独电感器的设计。PMP9581_REVC — 具有双电感的 40W 同步 ZETA 转换器参考设计
此款双电感器 13.2V/4A 同步 ZETA 转换器实现了大于 93% 的满载效率。对于大于 10V 的输入电压,此设计能够产生 5A 输出。它充分利用所有表面贴装组件,可维持低温升,并能应对高峰值负载瞬变。请参阅 PMP9581 REVB 以了解这一包含耦合电感器的设计。PMP9333 — 60V 输入电压、12V 输出电压/4A,降压
此电路的工作输入电压范围为 50V 至 60V(最大值)。输出设定为 12V(4A 连续电流),峰值瞬态电流为 7A。PMP7282 — 35V-60V 输入、12V/600W 双相降压转换器
此款 600W 宽电压输入双相功率转换器使用两个仿真电流模式控制器的 180 度相位差来最大限度减小输入和输出纹波电流。与传统隔离式功率转换器相比,这种同步降压架构提供更低的占用空间和 BOM 成本,而且效率更高,在多种操作条件下效率高于 97%。