DESCRIPTION
●The TPS51219 is a small-sized single buck controller with adaptive on-time control. It provides a choice of control modes (D-CAP™ or D-CAP2™) to meet a wide range of system requirements. It is designed for tight DC regulation requirements such as the VCCIO application for Intel® notebooks. The performance and flexibility of the TPS51219 makes it suitable for low output voltage, high current, PC system power rails and similar point-of-load (POL) power supplies.
●Differential voltage feedback and the voltage compensation function combine to provide high
●precision power to load devices.
●FEATURES
●• Differential Voltage Feedback
●• DC Compensation for Accurate Regulation
●• Wide Input Voltage Range: 3 V to 28 V
●• Output Voltage Range: 0.5 V to 2.0 V with Fixed Options of 1.05 V and 1.00 V
●• Wide Output Load Range: 0 A to 20 A+
●• Adaptive On-Time Modulation with Selectable Control Architecture and Frequency
●– D-CAP™ Mode at 300 kHz/400 kHz for Fast Transient Response
●– D-CAP2™ Mode at 500 kHz/670 kHz for Ceramic Output Capacitor
●• 4700 ppm/°C, Low-Side RDS(on)
●Current Sensing
●• RSENSE Accurate Current Sense Option
●• Internal, 1-ms Voltage Servo Softstart
●• Built-In Output Discharge
●• Power Good Output
●• Integrated Boost Switch
●• Built-In OVP/UVP/OCP
●• Thermal Shutdown (Non-latched)
●• 3 mm × 3 mm, 16-Pin, QFN (RTE) Package
