TPS51125A - 具有 Out-of-Audio 操作和 100mA LDO 的双路同步降压控制器

TPS51125A是TI德州仪器公司的一款控制器（外部开关）产品，TPS51125A是具有 Out-of-Audio 操作和 100mA LDO 的双路同步降压控制器，本站介绍了TPS51125A的封装应用图解、特点和优点、功能等，并给出了与TPS51125A相关的TI元器件型号供参考。

TPS51125A - 具有 Out-of-Audio 操作和 100mA LDO 的双路同步降压控制器 - 控制器（外部开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The TPS51125A 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 to drive an external charge pump, generating gate drive voltage for the load switches without reducing the main converter’s efficiency. The TPS51125A supports high efficiency, fast transient response 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 TPS51125A is available in a 24-pin QFN package and is specified from -40°C to 85°C ambient temperature range.

产品特性

Wide Input Voltage Range: 5.5 V to 28 V
Output Voltage Range: 2 V to 5.5 V
Built-in 100-mA 5-V/3.3-V LDO with Switches
Built-in 1% 2-V Reference Output
With/Without Out-of-Audio™ Mode Selectable Light Load and PWM only Operation
Internal 1.6-ms Voltage Servo Softstart
Adaptive On-Time Control Architecture with Four Selectable Frequency Setting
4500 ppm/°C RDS(on) Current Sensing
Built-In Output Discharge
Power Good Output
Built-in OVP/UVP/OCP
Thermal Shutdown (Non-latch)
QFN24 (RGE)

下面可能是您感兴趣的TI德州仪器公司控制器（外部开关）元器件

TI公司产品现货专家，订购TI公司产品不限最低起订量，TI芯片大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货

寻找全球TI代理商现货货源 - TI公司（德州仪器）电子元件在线订购