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Product Detailed Parameters
- Description：IC REG LINEAR 3.3V 150MA 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)：3.3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.18V @ 150mA
- Current - Output：150mA
- Current - Quiescent (Iq)：60 µA
- Current - Supply (Max)：120 µA
- PSRR：92dB ~ 50dB (1kHz ~ 100kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：6-UFDFN Exposed Pad
- Supplier Device Package：6-DFN (2x2)
- Grade：-
- Qualification：-
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Overview
The LDLN015PU33R is a low-dropout linear voltage regulator from STMicroelectronics, providing a fixed 3 V output with a maximum current of 150 mA. It operates within an input voltage range of 2.1 V to 5.5 V and features ultra-low noise performance, delivering 6.3 µV RMS in the 10 Hz to 100 kHz band. The device includes logic-controlled shutdown, short-circuit protection, and thermal limiting, ensuring stable operation with ceramic capacitors.
Feature Summary
- Ultra-low noise output suitable for sensitive analog loads
- Logic-controlled electronic shutdown for extended battery life
- Internal short-circuit constant current limiting and thermal protection
Applications
- Powering analog-to-digital converters (ADCs)
- Supplying voltage-controlled oscillators (VCOs) in mobile devices
- Powering personal digital assistants (PDAs)
Procurement Notes
Verify component authenticity through authorized channels due to potential counterfeit risks. Confirm package integrity upon receipt. Check datasheet revisions for updated electrical characteristics. Ensure compatibility with existing PCB layout and capacitor specifications before final integration.
Selection Notes
Select this regulator for applications requiring minimal output noise and high power supply rejection ratio. It is ideal for battery-powered systems where low quiescent current and shutdown mode are critical. Verify that the required output voltage matches the fixed 3 V option available in the series.
Part Context
This component belongs to the LDLN015 family of ultra-low noise linear regulators designed for space-constrained portable electronics. The series offers various fixed output voltages and utilizes compact DFN-6 packaging to minimize footprint while maintaining robust performance in low-power environments.
Replacement Considerations
Check for direct pin-compatible alternatives within the same LDLN015 series offering different fixed output voltages. Verify if newer generations or equivalent parts from other manufacturers meet the specific noise and PSRR requirements.
