The TPS56X20 is a synchronous DC-DC converter IC (integrated circuit) with a voltage scaling control to power up micro-processors (MCUs) requiring core voltage (VCORE) tune-ups. After the initial power-up, the output voltage can be programmed/scaled by VID codes sent over an I2C compatible bus.
●This step-down (buck) converter employs an adaptive on-time D-CAP2 mode control which provides a very fast transient response with no external components. Unlike traditional voltage-/current-mode controls, the D-CAP2 supports seamless transition between PWM mode for higher load and Eco-mode for light load. Eco-mode maintains high efficiency in light-load.
●The TPS56X20 supports both ultra-low ESR ceramic capacitors and low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP. The device is optimized for a small 1.0µH to 2.2µH inductor saving PCB area.
●The TPS56X20 devices are available in the HTSSOP package.
● D-CAP2 Control
● Input Voltage Range: 4.5V to 17V
● Switching Frequency: 500kHz
● Optimized for a 1.0µH to 2.2µH Inductor
● ±1% Output Voltage Accuracy
● Features via I2C Compatible Interface
● Output Voltage (VID):
●0.6V to 1.87V in 10mV
● Auto-Skip Eco-mode ON/OFF (Light-load)
● Current Limit Target: 40% to 160%
● Enabling IC, Reading-back Power-good
● Hiccup Mode Protection ON/OFF
● IC Terminal Features
● Start-up by Using External Resistors
●Output Voltage with VFB Pin: 0.6V to 1.87V
● Adjustable Soft-start,
●Monotonic Pre-Biased Start-up
● Power-good
● I2C Address Programming (2bits)
● Cycle-by-Cycle Overcurrent Limiting Control
● Thermal Shutdown (TSD)
● Undervoltage Lockout (UVLO)
● TSSOP Package (PWP) with PowerPAD
