STMicroelectronics ST1S09IPUR Microcontrollers
2A 1.5MHz Step-Down DC/DC Controller, Synchronous Rectifier, DFN

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
ST1S09IPUR
Detailed Description
2A 1.5MHz Step-Down DC/DC Controller, Synchronous Rectifier, DFN
Package
6-VDFN Exposed Pad
Lifecycle Status
Active
Datasheet
ST1S09IPUR Datasheet
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Technical Specifications
STMicroelectronics ST1S09IPUR Microcontrollers technical specifications.
General
Package / Case
6-VDFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-30°C ~ 85°C (TJ)
Lifecycle Status
Active
Output Type
Adjustable
Max Input Voltage
6V
Output Current
2A
Switching Frequency
1.5MHz
Number of Outputs
1
Topology
Buck
Alternate Parts Comparison (ST1S09IPUR vs ST1L05CPU33R vs ST1L05APU33R vs ST1L05BPUR)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 6-VDFN Exposed Pad | 6-VDFN Exposed Pad | 6-VDFN Exposed Pad | 6-VDFN Exposed Pad |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -30°C ~ 85°C (TJ) | 0°C ~ 125°C | 0°C ~ 125°C | 0°C ~ 125°C |
| Max Input Voltage | 6V | 7V | 7V | 7V |
| Output Configuration | Positive | Positive | Positive | Positive |
| Output Current | 2A | 1.3A | 1.3A | 1.3A |
| Output Type | Adjustable | Fixed | Fixed | Adjustable |
| Output Voltage | 0.8V | 3.3V | 3.3V | 1.22V |
| Number of Regulators | -- | 1 | 1 | 1 |
| Protection Features | -- | Over Current, Over Temperature | Over Current, Over Temperature | Over Current, Over Temperature |
| PSRR | -- | 65dB (120Hz) | 65dB (120Hz) | 72dB (120Hz) |
| Quiescent Current | -- | 650 µA | 650 µA | 650 µA |
| Action |
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