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Product Detailed Parameters
- Description：IC REG LINEAR 0.8V 150MA SOT-666
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR)
- 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)：0.1V @ 100mA
- Current - Output：150mA
- Current - Quiescent (Iq)：50 µA
- Current - Supply (Max)：70 µA
- PSRR：65dB ~ 62dB (1kHz ~ 10kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：SOT-563, SOT-666
- Supplier Device Package：SOT-666
- Grade：-
- Qualification：-
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Overview
The LD39015XG08R is a fixed-output linear voltage regulator from STMicroelectronics, providing a stable 0.8V output with a maximum current capacity of 150mA. It operates within an input voltage range of 1.5V to 5.5V and features a typical dropout voltage of 80mV at full load. The device incorporates ultra-low quiescent current characteristics, consuming only 50µA during operation and less than 1µA in shutdown mode when enabled. It includes internal protection mechanisms such as overcurrent limiting and thermal shutdown. The component is housed in a SOT-666 surface-mount package and is rated for operation across a wide temperature range from -40°C to 125°C.
Feature Summary
- Ultra-low dropout voltage capability ensures efficient power regulation under varying load conditions
- Logic-controlled enable function allows deep sleep mode with minimal current consumption
- Integrated short-circuit constant current limiting and thermal protection safeguard the device
- Stable operation guaranteed with standard ceramic output capacitors
Applications
- Mobile phones and similar portable communication devices
- Personal digital assistants (PDAs)
- Cordless phone systems
- Low-power battery-powered electronic systems
Procurement Notes
Verify component authenticity through authorized STMicroelectronics distributors or certified partners. Confirm the specific suffix 'XG08R' matches the required 0.8V fixed output and SOT-666 packaging. Check for RoHS compliance status and ensure the part number corresponds to the discontinued status if sourcing from secondary markets. Validate datasheet revisions against design requirements.
Selection Notes
Select this regulator for applications requiring precise low-voltage rails where power efficiency is critical. The fixed 0.8V output suits core voltage supplies for low-voltage logic or memory. Consider the SOT-666 package size for space-constrained PCB layouts. Ensure input voltage remains within the 1.5V to 5.5V range to maintain proper regulation and avoid dropout issues.
Part Context
This component belongs to the LD39015xx series of low-dropout regulators designed for mobile and battery-operated electronics. The series offers various fixed output voltages and packages, including SOT-23-5 and flip-chip options. The LD39015XG08R specifically targets the 0.8V output requirement in a compact SOT-666 form factor, aligning with industry trends for miniaturized power management solutions.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. As the LD39015XG08R is marked as discontinued, engineers must consult official STMicroelectronics replacement guides or contact technical support for qualified alternatives with matching electrical specifications and pin compatibility.
