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STMicroelectronics Electronic Components Datasheet

STPD01PUR Datasheet

Programmable buck converter

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STPD01
Datasheet
Programmable buck converter for USB power delivery
Product status link
STPD01
Product summary
Order code
STPD01PUR
Package
QFN24L 3 x 4
Features
• Input voltage range 6.0 V to 26.4 V
• Internal power MOS synch rectification
• Internal compensation
• I2C bus controlled
• Vout settings: 3 V to 20 V with 20 mV (min.) steps
• Slew rate control (max. 30 mV/us)
• Cable drop compensation
• Iout 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
Applications
• AC adapters
• USB hubs
• PC monitors
• 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
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.
DS13473 - Rev 3 - May 2021
For further information contact your local STMicroelectronics sales office.
www.st.com


STMicroelectronics Electronic Components Datasheet

STPD01PUR Datasheet

Programmable buck converter

No Preview Available !

STPD01
Application schematic
1
Application schematic
Figure 1. STPD01 typical application schematic
CDRVH
CBOOT
PVIN
VDRVH
BOOT
L
RSNS
Vout
CIN
VCC
LX
Pon
SCL
SDA
ADD
INT
EN
ISNS+
ISNS-
VSNS
Cout
Cout1
RCDC1
CCDC
VREG
CREG
SGND PGND
CDC
RCDC2
Symbol
RSNS
L
CIN
CBOOT
COUT
COUT1
RCDC1
RCDC2
CDRVH, CREG
Value
25 mΩ 1%
10 uH
47 uF
100 nF
68-100 uF
10-22 uF
10 kΩ
Function of RCABLE
1 uF
Table 1. Bill of material
Description
Note
Low DCR
Ceramic capacitor
Ceramic capacitor
Ceramic capacitor
Ceramic capacitor
Spec USB PD
Ceramic capacitor
See Section 7.2 Cable drop compensation
DS13473 - Rev 3
page 2/43


Part Number STPD01PUR
Description Programmable buck converter
Maker STMicroelectronics
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STPD01PUR Datasheet PDF






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