The TPS53219 is small-sized single buck controller with adaptive on-time D-CAP mode control. The device is suitable for low output voltage, high current, PC system power rail and similar point-of-load (POL) power supplies in digital consumer products. The small package and minimal pin-count save space on the PCB, while the dedicated EN pin and pre-set frequency selections simplify the power supply design. The skip-mode at light load conditions, strong gate drivers and low-side FET RDS(on) current sensing supports low-loss and high efficiency, over a broad load range. The conversion input voltage (high-side FET drain voltage) range is between 3 V and 28 V, and the output voltage range is between 0.6 V and 5.5 V. The TPS53219 is available in a 16-pin, QFN package specified from –40°C to 85°C.
● Wide Input Voltage Range: 4.5 V to 28 V
● Output Voltage Range: 0.6 V to 5.5 V
● Wide Output Load Range: 0 A to > 20 A
● Built-In 0.6-V Reference
● Built-In LDO Linear Voltage Regulator
● Auto-Skip Eco-mode for Light Load Efficiency
● D-CAP Mode with 100-ns Load-Step Response
● Adaptive On-Time Control Architecture with 8 Selectable Frequency Settings
● 4700ppm/°C RDS(on)Current Sensing
● 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable Internal Voltage Servo Soft-Start
● Pre-Charged Start-up Capability
● Built-In Output Discharge
● Power Good Output
● Integrated Boost Switch
● Built-in OVP/UVP/OCP
● Thermal Shutdown (Non-latch)
● 3 mm × 3mm QFN, 16-Pin (RGT) Package
● APPLICATIONS
● Point-of-Load Systems
● Storage Computer
● Server Computer
● Multi-Function Printer
● Embedded Computing
●D-CAP and Eco-mode are trademarks of Texas Instruments.
