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Product Detailed Parameters
- Description：IC REG LIN 0.8V 300MA SOT-323-5
- 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：5-TSSOP, SC-70-5, SOT-353
- Supplier Device Package：SOT-323-5
- Grade：-
- Qualification：-
Download product information
Overview
The LDK130C08R is a fixed-output linear low-dropout regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 0.8V with a maximum continuous output current of 300mA. The device operates within an input voltage range of 1.9V to 5.5V and features a typical dropout voltage of 100mV at 100mA load, reaching up to 400mV at full load. Quiescent current is typically 60µA, reducing to below 1µA in shutdown mode enabled by logic control. It includes overcurrent and thermal protection, supports ceramic capacitors, and functions across a temperature range of -40°C to +125°C.
Feature Summary
- Logic-controlled electronic shutdown function enables ultra-low power consumption in standby states
- Internal short-circuit constant current limiting and thermal protection ensure operational safety
- Compatible with small ceramic output capacitors for stable regulation without bulk capacitance
Applications
- Low-power battery-powered portable devices requiring efficient voltage regulation
- Automotive electronics systems utilizing AEC-Q100 qualified components
- RF and sensor circuits demanding very low noise power supplies
Procurement Notes
Verify the specific suffix 'C08' confirms the 0.8V fixed output voltage during procurement. Confirm the SOT-323-5 package designation matches your PCB footprint requirements. Ensure compatibility with RoHS3 standards if environmental compliance is mandatory for your assembly process.
Selection Notes
Select this component when a precise 0.8V rail is required from a 1.9V to 5.5V source. Consider the 300mA current limit against peak load demands. Evaluate the SOT-323-5 package size constraints against available board space and thermal dissipation needs for the target application environment.
Part Context
This part belongs to the LDK130 series of low-dropout regulators designed for automotive and industrial applications. The series offers various fixed output voltages and packages, including SOT23-5L and DFN6. The LDK130C08R specifically targets applications needing a low-voltage, high-current supply with minimal quiescent drain.
Replacement Considerations
Check for other LDK130 variants with different output voltages or packages. Verify that any substitute maintains the same 300mA current rating and SOT-323-5 footprint. Ensure the replacement meets the same AEC-Q100 qualification if automotive reliability is required.
