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Product Detailed Parameters
- Description：IC REG LINEAR 0.8V 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)：0.8V
- 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 LDK130PU08R is a low-dropout linear voltage regulator from STMicroelectronics, designed for automotive applications. It provides a fixed output voltage of 0.8 V with a maximum output current of 300 mA. The device operates within an input voltage range of 1.9 V to 5.5 V and features a typical dropout voltage of 100 mV at 100 mA load. It exhibits a low quiescent current of 30 µA and reduces to 1 µA in OFF mode. The component is housed in a DFN6 1.2x1.3 package and supports a wide operating temperature range from -40 °C to 125 °C.
Feature Summary
- Automotive-grade reliability with AEC-Q100 qualification
- Ultra-low noise performance suitable for sensitive analog circuits
- Logic-controlled electronic shutdown for power management
- Internal thermal and current limit protection
Applications
- Low-power battery-powered automotive systems
- Noise-sensitive sensor power supplies
- Embedded control unit auxiliary power rails
Procurement Notes
Verify the specific suffix 'PU08R' matches the required 0.8 V fixed output and DFN6 packaging. Confirm that the automotive grade requirement aligns with the AEC-Q100 qualification status. Ensure the design accounts for the 1 µF ceramic capacitor compatibility for stability. Check the latest datasheet revision for any updates on pin configuration or thermal characteristics before finalizing procurement.
Selection Notes
Select this component when a stable 0.8 V rail is needed for automotive electronics with strict noise constraints. It is appropriate for designs requiring minimal static current consumption to extend battery life. The DFN6 package suits space-constrained PCB layouts. Consider the 1.9 V minimum input voltage when designing the upstream power stage to ensure sufficient headroom under all operating conditions.
Part Context
This part belongs to the LDK130 family of low-dropout regulators manufactured by STMicroelectronics. The family offers various fixed output voltages ranging from 0.8 V to 3.5 V. While other packages like SOT23-5L are available for some variants, the PU08R specifically utilizes the DFN6 1.2x1.3 footprint. The series is characterized by its combination of low noise, low quiescent current, and automotive certification.
Replacement Considerations
Other LDK130 variants with different output voltages (e.g., LDK130PU12R) share similar electrical characteristics but provide different fixed outputs. Verify that the alternative part number matches the required 0.8 V output specification. Cross-referencing with the official STMicroelectronics LDK130 datasheet is recommended to confirm pin-to-pin compatibility and thermal performance equivalence.
