ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG LINEAR 1.5V 250MA SOT23-5
- 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)：1.5V
- 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：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
Download product information
Overview
The LDLN025M15R is a fixed-output low-dropout linear voltage regulator from STMicroelectronics, providing a stable 1.5 V output with a maximum load current of 250 mA. It operates within an input voltage range of 1.5 V to 5.5 V and features ultra-low noise performance at 6.5 µVRMS. The device maintains high power supply rejection ratios of 80 dB at 100 Hz and 60 dB at 100 kHz. Quiescent current is minimized to 12 µA at no-load, extending battery life in portable applications. It includes logic-controlled shutdown, internal soft-start, and thermal/overcurrent protection.
Feature Summary
- Ultra-low noise operation suitable for sensitive RF and analog loads
- High power supply rejection ratio for clean power delivery
- Logic-controlled electronic shutdown for extended standby battery life
- Integrated short-circuit and thermal protection mechanisms
Applications
- Powering precision ADCs in measurement systems
- Supplying VCOs in mobile phones and tablets
- Powering wireless LAN devices and IoT sensors
Procurement Notes
Verify the complete part number against official STMicroelectronics documentation to ensure correct suffix alignment. Confirm that the specific package variant matches your PCB layout requirements. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement specifications.
Selection Notes
Select this component when ultra-low noise and high PSRR are critical for signal integrity in compact designs. 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 ceramic capacitors are used for stability.
Part Context
This device belongs to the LDLN025 series of low-dropout regulators designed for space-constrained products. It complements other low-noise LDOs like the LDLN015 but offers higher current capacity. The series targets battery-powered consumer electronics requiring efficient power management and minimal voltage ripple.
Replacement Considerations
Consult official substitution lists for verified equivalents. Generic LDO replacements may not match the specific noise or PSRR characteristics required for sensitive RF applications.
