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Микросхема TI TPS51123RGER QFN24 в наличии и под заказ, гарантия 2 мес. Принимаем запросы на любые электронные компоненты.

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

1FEATURES APPLICATIONS 2• Wide-Input Voltage Range: 5.5 V to 28 V • Notebook Computers • Output Voltage Range: 2 V to 5.5 V • I/O Supplies • Built-in 100-mA 5-V/3.3-V LDO with Switches • System Power Supplies • Built-in 1% 2-V Reference Output DESCRIPTION • With/Without Out-of-Audio™ Mode Selectable The TPS51123 is a cost effective, dual-synchronous Light-Load and PWM only Operation buck controller targeted for notebook system power • Internal 1.6-ms Voltage Servo Softstart supply solutions. It provides 5-V and 3.3-V LDOs and • Adaptive On-Time Control Architecture with requires few external components. The TPS51123 Four Selectable Frequency Setting supports high efficiency, fast transient responses and provides a combined power-good signal. Out-of- • 4500 ppm/°C RDS(on) Current Sensing Audio™ mode light-load operation enables low • Built-In Output Discharge acoustic noise at much higher efficiency than • Power Good Output conventional forced PWM operation. Adaptive ontime D-CAP™ control provides convenient and • Built-in OVP/UVP/OCP efficient operation. The part operates with supply • Thermal Shutdown (Non-latch) input voltages ranging from 5.5 V to 28 V and • 24-Pin QFN (RGE) Package supports output voltages from 2 V to 5.5 V. The TPS51123 is available in a 24-pin QFN package and is specified from -40°C to 85°C ambient temperature range.