STPD01PUR STMicroelectronics

STPD01 Datasheet Programmable buck converter for USB power delivery Features Input voltage range 6.0 V to 26.4 V Internal power MOS synch rectification Internal compensation 2 I C bus controlled V settings: 3 V to 20 V with 20 mV (min.) steps out Slew rate control (max. 30 mV/us) Cable drop compensation I settings: 0.1 A to 3 A with 50 mA steps out Embedded discharge function Two programmable switching frequencies with optional clock dithering 2 Watchdog timer set by I C 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 Product status link Applications STPD01 Product summary AC adapters Order code STPD01PUR USB hubs PC monitors Package QFN24L 3 x 4 Smart TV USB-PD power distribution Description 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 2 through I C interface. Overvoltage, overcurrent and overtemperature protections are included in the device. A programmable watchdog improves the robustness and the safety of the complete system. 2 Finally, the device is available in QFN24L 3 x 4 mm . DS13473 - Rev 3 - May 2021 www.st.com For further information contact your local STMicroelectronics sales office.STPD01 Application schematic 1 Application schematic Figure 1. STPD01 typical application schematic C DRVH C BOOT V L R PVIN VDRVH BOOT SNS out LX C IN VCC C C out out1 Pon I SNS+ I SNS- SCL R CDC1 SDA C CDC ADD V SNS INT EN VREG CDC SGND PGND C REG R CDC2 Table 1. Bill of material Symbol Value Description Note R 25 m 1% SNS L 10 uH Low DCR C 47 uF Ceramic capacitor IN C 100 nF Ceramic capacitor BOOT C 68-100 uF Ceramic capacitor Spec USB PD OUT C 10-22 uF Ceramic capacitor OUT1 RCDC1 10 k RCDC2 Function of R See Section 7.2 Cable drop compensation CABLE CDRVH, CREG 1 uF Ceramic capacitor DS13473 - Rev 3 page 2/43