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Product Detailed Parameters
- Description：IC REG LIN 3V 250MA 4-FLIPCHIP
- 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)：3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.2V @ 250mA
- Current - Output：250mA
- Current - Quiescent (Iq)：25 µA
- Current - Supply (Max)：425 µA
- PSRR：80dB ~ 60dB (100Hz ~ 100KHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature, Short Circuit, Soft Start
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：4-XFBGA, FCBGA
- Supplier Device Package：4-FlipChip (0.63x0.63)
- Grade：-
- Qualification：-
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Overview
The LDLN025J30R is a 250 mA low-dropout linear voltage regulator from STMicroelectronics, providing a fixed 3.0 V output in a Flip-Chip4 package. It operates within an input voltage range of 1.5 V to 5.5 V and delivers up to 250 mA of output current. The device features ultra-low output noise of 6.5 μV RMS and very high power supply rejection ratio (PSRR) characteristics. Quiescent current is maintained at 12 μA at no-load, with controlled consumption during dropout conditions. Internal protections include thermal shutdown and overcurrent limiting.
Feature Summary
- Ultra-low output noise for clean power delivery to sensitive loads
- Logic-controlled electronic shutdown with total current consumption lower than 1 μA
- Internal soft-start and output discharge feature for safe sequencing
- Integrated short-circuit and thermal protection mechanisms
Applications
- Noise-sensitive loads such as ADCs and VCOs
- Mobile phones and tablets
- Wireless LAN devices
- Image sensors
- Instrumentation
Procurement Notes
Verify the specific ordering code against official documentation to ensure correct package type and output voltage. Confirm that the Flip-Chip4 variant matches the intended PCB footprint requirements. Check for any updates regarding environmental compliance grades or ECOPACK specifications before finalizing procurement orders.
Selection Notes
Select this component when designing circuits requiring ultra-low noise performance for RF modules or precision analog sections. Ensure the input voltage remains within the specified 1.5 V to 5.5 V range. Verify that the required output current does not exceed 250 mA and that the PCB layout accommodates the Flip-Chip4 package dimensions and exposed pad connection requirements.
Part Context
This part belongs to the LDLN025 series of 250 mA ultra-low noise LDO regulators designed for space-constrained products. The series offers multiple package options including DFN4-1x1, SOT23-5L, and Flip-Chip4. It is engineered to extend battery life in portable devices through low quiescent current operation and stable performance across varying load and temperature conditions.
Replacement Considerations
Consult the official datasheet for alternative order codes within the same family offering different output voltages or packages. No direct substitute part numbers are explicitly confirmed in the provided source material.
