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TP3311,双路1.5A降压转换器

TP3311】双路1.5A降压转换器 下载TP3311规格书

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TP3311 详细介绍

DESCRIPTION
The TP3311 contains two independent 1.5MHz constant frequency, current mode, PWM step-down converters. Each converter integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. The TP3311 is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) battery. Each converter can supply 1A of load current from a 2.5V to 5.5V input voltage. The output voltage can be regulated as low as 0.6V. The TP3311 can also run at 100% duty cycle for low dropout applications.
TP3311 is available in an adjustable version and fixed output voltage of 1.2V, 1.8V ,3.3V.
 


FEATURES
* Up to 96% Efficiency
* 1.5MHz Constant Switching Frequency
* 1.5A Load Current on Each Channel
* 2.5V to 5.5V Input Voltage Range
* Output Voltage as Low as 0.6V
* 100% Duty Cycle in Dropout
* Current Mode Operation
* Short Circuit Protection
* Thermal Fault Protection
* <1μA Shutdown Current
* Soft Start Function
* Space Saving 12-Pin TDFN Package
* RoHS Compliant and 100% Lead(Pb)-Free
 

Applications
* Microprocessors and DSP Core Supplies
* PDAs and GPS applications
* Wireless and DSL Modems
* Digital Still and Video Cameras