LM5116宽范围同步降压控制器 LM5116 Wide Range Synchronous Buck Controller
Description
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.
Features
• 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
Applications
• Automotive Infotainment
• Industrial DC-DC Motor Drivers
• Automotive USB Adapters
• Telecom Servers
输出接口数 1
输出电压 1.215V ~ 80V
输出电流 20.0 A
通道数 1
静态电流 4.60 mA
调节输出数 1
开关频率 200kHz, 535kHz
拓扑结构 Buck
占空比 98 %
输入电压Max 100 V
输入电压Min 6 V
工作温度Max 150 ℃
工作温度Min -40 ℃
电源电压 4.75V ~ 15V
引脚数 20
封装 TSSOP-20
封装 TSSOP-20
工作温度 -40℃ ~ 125℃ TJ
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 Non-Compliant
含铅标准 Contains Lead
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LM5116MHX TI 德州仪器 | 当前型号 | 当前型号 |
LM5116MH/NOPB 德州仪器 | 类似代替 | LM5116MHX和LM5116MH/NOPB的区别 |
LM5116MHX/NOPB 德州仪器 | 类似代替 | LM5116MHX和LM5116MHX/NOPB的区别 |
LM5116MH 德州仪器 | 类似代替 | LM5116MHX和LM5116MH的区别 |