The LM5116WG 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 LM5116WG 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, frequency synchronization, cycle by cycle current limit and adjustable line under-voltage lockout. The device is available in a CPGA-20 high temperature ceramic package with the thermal shutdown feature disabled.

• Hermetic Package for Harsh Operating Environments
• Emulated Peak Current Mode
• Wide Operating Range up to 100V
• Low IQ Shutdown (< 10 μA)
• Drives Standard or Logic Level MOSFETs
• Robust 3.5A Peak Gate Drive
• Free-Run or Synchronous Operation to 1 MHz
• Optional Diode Emulation Mode
• Programmable Output from 1.215V to 80V
• Precision 1.5% Voltage Reference
• Programmable Current Limit
• Programmable Soft-Start
• Programmable Line Under-Voltage Lockout
• Automatic Switch to External Bias Supply
• CPGA-20 with No Thermal Shutdown

All trademarks are the property of their respective owners.

• 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
• Enable, Frequency Synchronization, Light Load Efficiency
• Regulated outputs (#)
• 1
• Number of phases
• 1
• Rating
• Catalog

LM5116WG的完整型号有：LM5116WG/NOPB，以下是这些产品的关键参数及官网采购报价：

LM5116WG/NOPB，工作温度：-40 to 125，封装：CFP (NAR)-20，包装数量MPQ：30个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：Call TI，TI官网LM5116WG/NOPB的批量USD价格：250（1000+）

PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice

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 (...)