描述 Description

The TD1484B is a monolithic synchronous buck regulator. ?The ?device ?integrates ?two ?90m? 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 90m? 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

應(yīng)用 Application

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