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STMicroelectronics · Other integrated circuits

ST1PS03AQTR

IC REG BUCK SELECT 400MA 12TQFN

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ST1PS03AQTR component illustration
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ST1PS03AQTR specifications

Recorded source facts. Missing values are kept explicit; verify the exact manufacturer document before design approval.

ManufacturerSTMicroelectronics
Ordering codeST1PS03AQTR
FamilyOther integrated circuits
Package12-UFQFN
Product StatusActive
FunctionStep-Down
Output ConfigurationPositive
TopologyBuck
Output TypeSelectable
Number of Outputs1
Voltage - Input (Min)1.8V
Voltage - Input (Max)5.5V
Voltage - Output (Min/Fixed)1.6V
Voltage - Output (Max)3.3V
Current - Output400mA
Frequency - SwitchingNot provided in source
Synchronous RectifierYes
Operating Temperature-40°C ~ 125°C (TJ)
Mounting TypeSurface Mount
Package / Case12-UFQFN
Supplier Device Package12-TQFN (1.7x2)

Documents and evidence

ST1PS03AQTR ↗

Before sourcing ST1PS03AQTR

  1. Identify the firmware and board baseline
  2. Check flash, RAM and required peripherals
  3. Review pin assignment and supply limits
  4. Keep the full temperature and package suffix
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