LM5116

AN-1713 LM5116-12 Evaluation Board

Introduction TheLM5116-12evaluationboardisdesignedtoprovidethedesignengineerwithafullyfunctionalpower converterbasedonEmulatedCurrentModeControltoevaluatetheLM5116controllerIC.Theevaluation boardprovidesa12Voutputwitha5Acurrentcapability.Theoperatinginpu

LM5116

WIDE RANGE SYNCHRONOUS BUCK CONTROLLER

FEATURES •EmulatedPeakCurrentMode •WideOperatingRangeUpto80V •LowIQShutdown(

LM5116

6V 至 100V 宽输入电压、电流模式同步降压控制器; • Emulated Peak Current Mode\n• Wide Operating Range Up to 100 V\n• Low IQ Shutdown (MOSFETs\n• Robust 3.5-A Peak Gate Drive\n• Free-run or Synchronous Operation to 1 MHz\n• Optional Diode Emulation Mode\n• Programmable Output from 1.215 V to 80 V\n• Precision 1.5% Voltage Reference\n• Programmable Current Limit\n• Programmable Soft-Start\n• Programmable Line Undervoltage Lockout\n• Automatic Switch to External Bias Supply\n• HTSSOP-20 Exposed Pad\n• Thermal Shutdown\n• Create a Custom Design Using the LM5116 with the WEBENCH Power Designer;

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.\n\nThe 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.\n\nAdditional 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.

LM5116

LM5116 Wide Range Synchronous Buck Controller

LM5116

Emulated Peak Current Mode, Wide Operating Range Up to 100V

LM5116

Wide Range Synchronous Buck Controller

LM5116

Wide Range Synchronous Buck Controller

LM5116-12

AN-1713 LM5116-12 Evaluation Board

Introduction TheLM5116-12evaluationboardisdesignedtoprovidethedesignengineerwithafullyfunctionalpower converterbasedonEmulatedCurrentModeControltoevaluatetheLM5116controllerIC.Theevaluation boardprovidesa12Voutputwitha5Acurrentcapability.Theoperatinginpu

LM5116HJD

丝印：LM5116HJD；Package：CDIPSB；WIDE RANGE SYNCHRONOUS BUCK CONTROLLER

FEATURES •EmulatedPeakCurrentMode •WideOperatingRangeUpto80V •LowIQShutdown(

LM5116HJD.A

丝印：LM5116HJD；Package：CDIPSB；WIDE RANGE SYNCHRONOUS BUCK CONTROLLER

FEATURES •EmulatedPeakCurrentMode •WideOperatingRangeUpto80V •LowIQShutdown(