TPS51511 - Synchronous Switcher Controller With 2A LDO for VGA Power

TPS51511是TI德州仪器公司的一款控制器（外部开关）产品，TPS51511是Synchronous Switcher Controller With 2A LDO for VGA Power，本站介绍了TPS51511的封装应用图解、特点和优点、功能等，并给出了与TPS51511相关的TI元器件型号供参考。

TPS51511 - Synchronous Switcher Controller With 2A LDO for VGA Power - 控制器（外部开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The TPS51511 is a 350-kHz D-CAP-mode synchronous switcher with a 2-A, source-only low drop-out (LDO) regulator. It is specifically designed for low cost/low noise/low external-component count power systems for GPU applications. The integrated 'OD' switch in the buck controller supports dynamic output voltage change. The current mode option of the synchronous buck converter can support pure output ceramic-capacitor applications. The open-drain LDO power-good signal can be accessed through the OD pin when it is needed in the application. The TPS51511 is available in the thermally-enhanced 20-pin QFN package, and is specified from -40°C to 85°C.

产品特性

Switcher Controller:
- Adjustable-Output Buck Converter, 0.75 V to 3.3 V
- Wide Input Voltage Range: 3.0-V to 28-V
- D-CAP™ Mode with 100-ns Load Step Response
- Current Mode Option Supports Ceramic Output Capacitors
- Current Sensing From RDS(ON) or Resistor
- Internal Switch Supports Dynamic Output Voltage Change
- Advanced PGOOD Mask Feature
- Equipped With PGOOD, OVP and UVP
- Output Discharge
- 5 V UVLO Protection
LDO Regulator:
- 2-A LDO for GPU I/O Power
- Input Range: Up to 5 V
- Output Range: 0.75 V to 3.3 V
- Requires Only 20-µF Ceramic Output Capacitor for LDO Output
- Optional PGOOD
- Output Discharge
- Thermal Shutdown
APPLICATIONS
- GPU Power
- Notebook Computers

D-CAP, PowerPAD are trademarks of Texas Instruments.

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