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TP3320,3A, 28V, 500kHz,0.8VFB降压

TP3320】3A, 28V, 500kHz,0.8VFB降压 下载TP3320规格书

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TP3320 详细介绍

DESCRIPTION :3A同步高压降压DC-DC
The TP3320 is a 500KHz fixed frequency synchronous current mode buck regulator. The device integrates both 135mΩ  high-side switch and 90m Ω low-side switch that provide 3A of continuous load current over a wide operating input voltage of 4.5V to 28V. The internal synchronous power switch increases efficiency and eliminates the need for an external Schottky diode.Current mode control provides fast transient response and cycle-by-cycle current limit.
The TP3320 features short circuit and thermal protection circuits to increase system reliability. Externally programmable soft-start allows for proper power on sequencing with respect to other power supllies and avoids input inrush current during startup.In shutdown mode, the supply current dropsbelow 1µA.TheTP3320isavailable in SOP-8 package with the exposed pad.
 


FEATURES
●   3A Continuous Output Current
●   110ns Minimum On Time
●   Integrated 135mΩ High Side Switch
●   Integrated 90mΩ Low Side Switch
●   Wide 4.5V to 28V Operating Input Range
●   Output Adjustable from 0.8V to 24V
●   Up to 95% Efficiency
●   Programmable Soft-Start
●   <1µA Shutdown Current
●   Available in 500KHz Fixed Switching Frequency
●   Thermal Shutdown and Over Current Protection
●   Input Under Voltage Lockout
●   Available in SOP-8 (EP) Package
●   RoHS Compliant and 100% Lead(Pb)-Free 

Applications
●   Distributed Power Systems
●   Networking Systems
●   FPGA, DSP, ASIC Power Supplies

 


 


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