STPD01PUR [STMicroelectronics]

The STPD01 is a programmable synchronous buck converter suitable to provide power supply in applications following USB power delivery specifications.

The device provides those voltages required by USB power delivery systems as stated in USB PD 3.0 spec up to 60 W output power (20 V, 3 A).

The different levels of output voltage and current limitation can be set dynamically through I²C interface.

Overvoltage, overcurrent and overtemperature protections are included in the device.

A programmable watchdog improves the robustness and the safety of the complete system.

Finally, the device is available in QFN24L 3 x 4 mm² .

• Input voltage range 6.0 V to 26.4 V
• Internal power MOS synch rectification
• Internal compensation
• I²C bus controlled
• V_out settings: 3 V to 20 V with 20 mV (min.) steps
• Slew rate control (max. 30 mV/us)
• Cable drop compensation
• I_out settings: 0.1 A to 3 A with 50 mA steps
• Embedded discharge function
• Two programmable switching frequencies with optional clock dithering
• Watchdog timer set by I²C
• Configurable interrupt pin
• Soft-start
• Power-on pin
• Programmable constant current limit
• OVP, IPEAK and overtemperature protections
• Short-circuit protection
• Undervoltage lockout
• Available in QFN24L 3 x 4 package