TI TPS51123RGER

降压同步（2），线性（LDO）（2）4控制器5.5V ~ 28V

Overview

The TPS51123RGER 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 TPS51123RGER supports high efficiency, fast transient responses and provides a combined power-good signal. Out-of-Audio mode light-load operation enables low acoustic noise at much higher efficiency than conventional forced PWM operation. Adaptive on-time D-CAP control provides convenient 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 TPS51123RGER is available in a 24-pin QFN package and is specified from -40°C to 85°C ambient temperature range.

The TPS51123 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 TPS51123 supports high efficiency, fast transient responses and provides a combined power-good signal. Out-of-Audio mode light-load operation enables low acoustic noise at much higher efficiency than conventional forced PWM operation. Adaptive on-time D-CAP control provides convenient 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 TPS51123 is available in a 24-pin QFN package and is specified from -40°C to 85°C ambient temperature range.

Features

Tape & Reel (TR) Package
4 outputs
Operating Temperature: -40°C~85°C
Peak Reflow Temperature: 260
Quiescent Current: 550μA
ALSO OPERATES AT 5V, OPERATES IN ADJUSTABLE MODE FROM 2V TO 5.5V

Surface Mount Mounting Type

Applications

There are a lot of Texas Instruments
TPS51123RGER Linear Regulator Controllers applications.

• Low parts count 5.0V to 3.3V computer supply
• Low noise SMPS post regulator
• Low-dropout SMPS post regulator
• High-current, current-limited switch
• Dual/Triple Power Supplies
• Desknotes and Notebooks
• Graphic Cards
• Ultra-Low-Dropout
• Voltage Regulators
• Low-Voltage DSP Power Supplies