New generation of buck converters pushes performance beyond limits with an input voltage ranging from 1.8 to 5.5 V and with digital voltage selection
Miniaturized step-down regulators drawing a quiescent current of only 500 nA, the ST1PS0 series ensures a highly efficient conversion regardless of the power source and is specifically tailored for battery-powered and energy-harvesting applications.
Key features
- 100% duty cycle
- 1.8 to 5.5 V input operating range
- Low power control operation for the best efficiency
- Output voltage Power Good pin
- ±1.5% output voltage accuracy
- Up to 400 mA output current capability
- Flip-chip 8 and TQFN12 packages
Application examples
Wearables 
Personal tracking monitors 
Smart watches and sport bands 
Energy harvesting and wireless sensors Recommended resources
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Quickly prototype and test your designs based on the ST1PS01 step-down regulator with digital voltage selection and Power Good signal in a tiny Flip-Chip package (1.11 x 1.41 mm, 400 μm pitch) for space-constrained applications.
Quickly prototype and test your designs based on the ST1PS02 step-down regulator with digital voltage selection, Power Good signal and auxiliary output voltage pin in a thin TQFN12 plastic package (2.0 x 1.7 mm, 400 μm pitch).
Quickly prototype and test your designs based on the ST1PS03 step-down regulator with digital voltage selection, Power Good signal and independent load switch (auxiliary control input) in a thin TQFN12 plastic package (2.0 x 1.7 mm, 400 μm pitch).
