· Wide Input Voltage Range from 4V to 32V
· Programmable VOUT Range from 0.8V to 30V
· Peak Current Mode Control
· Integrated Two low Rdson N-MOSFETs
· Adjustable Cycle-by-Cycle Current Limit by ❀ILIM
· Adjustable Frequency: 100kHz~1MHz
· External Soft-Start Limits the Input I﷽nrush Current
· Selectable FCCM or DCM with Puls👍e Skipping
· Cable Impedance Compensation
· Low Dropout Operation with Maౠximum Duty Cycle at 99.5%
· Input Under-Voltage Lockout
· Output OCP, SCP, OVP
· Thermal Shutdown
· QFN-28 Package, 5mm×5mm×0.75mm
The TMI3351 is an integrates 2-switchs synchronous buck converter mainly for widely varying input step-down regulator applications. The control m🐽ethod is based upon current mode control that enables maximum performance under transient conditions. The output voltage can be programmed by the FB pin. It operates as a Buck mode while the input voltage is sufficiently greater than the regulated output voltage and transitions to the low dropout operation mode with maximum duty cycle at 99.5% as the input voltage very approaches the output voltage.
It also features an adjustable soft-start function and cable impedance compensation function and offers protection features including input UVLO, cycle-by-cycle current limit, over power protection (OPP), output short protection (SCP) or OVP and thermal shutdown. In addition, it features selectable Forced Conti🍃nuous Conduction Mode (FCCM) or Discontinuous Conduction Mode (DCM) operation for light load condition.
The TMI3351 is available in compact QFN5x5-28.
在线订购 
电源管理芯片
电机驱动芯片
接口控制芯片
音频功放
消费电子