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IC / TPS51125 / QFN-24 /

تولید کننده: Texas Instruments
مدل کالا: TPS51125
موجودی:
تماس 8893- 6186
قیمت: 0تومان

51125 - TPS51125

Dual-Synchronous, Step-Down Controller with Out-of-Audio™ Operation and 100-mA LDOs for Notebook System Power

The TPS51125 is a cost effective, dual-synchronous buck controller targeted for notebook system power supply solutions. It provides 5-V and 3.3-V LDOs and requires few external components. The 270-kHz VCLK output can be used ( TPS51125 ) to drive an external charge pump, generating gate drive voltage for the load switches without reducing the main converter’s efficiency. The TPS51125 supports high efficiency fast transient response and provides a combined power-good signal. Out-of-Audio™ mode light-load ( TPS51125 ) operation enables low acoustic noise at much higher efficiency than conventional forced PWM operation Adaptive on-time D-CAP™ control provides convenient ( TPS51125 ) and efficient operation. The part operates with supply input voltages ranging from 5.5 V to 28 V and supports output voltages from 2 V to 5.5 V. The TPS51125 is available in a 24-pin QFN package and is specified from -40°C to 85°C ambient temperature

FEATURES

Wide Input Voltage ( TPS51125 ) Range: 5.5 V to 28 V

Output Voltage ( TPS51125 ) Range: 2 V to 5.5 V

Built-in 100-mA 5-V/3.3-V LDO with ( TPS51125 ) Switches

Built-in 1% 2-V Reference ( TPS51125 ) Output

With/Without Out-of-Audio™ Mode Selectable ( TPS51125 ) Light Load and PWM only Operation

Internal 1.6-ms Voltage ( TPS51125 ) Servo Softstart

Adaptive On-Time Control Architecture ( TPS51125 ) with Four Selectable Frequency Setting

APPLICATIONS

Notebook ( TPS51125 ) Computers

I/O ( TPS51125 ) Supplies

System Power ( TPS51125 ) Supplies

 

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