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Product Detailed Parameters
- Description：IC REG LINEAR 3.2V 300MA 6-DFN
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：3.2V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.4V @ 300mA
- Current - Output：300mA
- Current - Quiescent (Iq)：60 µA
- Current - Supply (Max)：120 µA
- PSRR：55dB (120Hz ~ 10kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：6-XFDFN
- Supplier Device Package：6-DFN (1.2x1.3)
- Grade：-
- Qualification：-
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Overview
The LDK130PU32R is a positive fixed linear voltage regulator manufactured by STMicroelectronics, delivering a fixed output of 3.2V with a maximum load current of 300mA. It operates within an input voltage range of 1.9V to 5.5V and features a typical dropout voltage of 0.4V at full load. The device incorporates low quiescent current (60µA) and high power supply rejection ratio (55dB). Protection mechanisms include overcurrent limiting and thermal shutdown. It is housed in a compact 6-DFN package measuring 1.2x1.3mm, suitable for surface-mount assembly.
Feature Summary
- Provides stable 3.2V output with 300mA continuous current capability
- Operates efficiently with low quiescent current consumption
- Includes integrated overcurrent and thermal protection circuits
- Utilizes ultra-small 6-DFN surface-mount packaging
Applications
- Portable battery-powered electronic devices
- Low noise analog circuit power supplies
- Embedded system voltage regulation
- IoT sensor node power management
Procurement Notes
Verify the complete part number including suffixes against official STMicroelectronics documentation to ensure correct output voltage and package configuration. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Cross-reference datasheet specifications with design constraints to validate performance under expected operating conditions.
Selection Notes
Select this component when a fixed 3.2V rail is required with moderate current demands up to 300mA. Ensure input voltage remains within the 1.9V to 5.5V operational window. Consider the 6-DFN footprint for space-constrained layouts. Verify thermal dissipation capabilities based on ambient temperature and load current to maintain reliability within the specified -40°C to 125°C range.
Part Context
This device belongs to the LDK130 series of low-dropout regulators from STMicroelectronics. The series offers various fixed output voltages while maintaining consistent electrical characteristics such as low noise and high PSRR. The PU32R designation specifically indicates the 3.2V output variant packaged in a 6-pin DFN format, designed for efficient power management in compact consumer electronics.
Replacement Considerations
Consult official STMicroelectronics substitution guides for compatible alternatives within the LDK130 family or equivalent third-party LDOs. Verify pin compatibility and electrical parameter alignment before replacing. No specific substitute part numbers are confirmed in public documentation.
