TD1484B中文资料3A 23V Synchronous Rectified Step-Down Converte数据手册Techcode规格书

描述 Description

The TD1484B is a monolithic synchronous buck regulator.  The  device  integrates  two  90mΩ MOSFETs, and provides 3A of continuous load current over a wide input voltage of 4.75V to 23V.   Current    mode        control provides      fast transient response and cycle-by-cycle current limit.An adjustable soft-start prevents inrush current at turn-on, and in shutdown mode the supply current drops to 1µA. The TD1484B regulates the output voltage in automatic PSM/PWM mode operation, depending on the outputcurrent, for high efficiency operation over light to full load current.This  device,     available  in      an     SOP8-PP package, provides a very compact solution with minimal external components.

特性 Features

3A Output CurrentWide 4.75V to 23V Operating Input RangeIntegrated 90mΩ Power MOSFET SwitchesOutput Adjustable from 0.923V to 20VUp to 93% EfficiencyPulse Save Mode(PSM)/PWM Mode OperationProgrammable Soft-StartStable with Low ESR Ceramic Output CapacitorsFixed 340KHz FrequencyCycle-by-Cycle Over Current ProtectionInput Under Voltage Lockout

应用 Application

Distributed Power Systems
 Networking Systems
 FPGA, DSP, ASIC Power Supplies
 Green Electronics/ Appliances
 Notebook Computers