TPS51511RHLT Description
TPS51511RHLT 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/1ow 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 TPS51511RHLT is available in the thermally-enhanced 20-pin QFN package and is specified from -40°C to 85°C.
TPS51511RHLT Features
Adjustable-Output Buck Converter, 0.75 V to 3.3 V
Wide Input Voltage Range: 3.0-V to 28-V
D-CAPTM 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
TPS51511RHLT Applications
GPU Power
Notebook Computers
Automotive
Infotainment & cluster
Communications equipment
