LDL212PU25R STMicroelectronics Integrated Circuit (Small Outline No-lead) In Stock
STMicroelectronics LDL212PU25R is a 1.2 A, high-PSRR low-dropout linear regulator with a fixed 2.5 V output, 1 V dropout at full load, and input range from 3.5 V to 18 V. It delivers tight line and load regulation in a compact 6-pin SOT-23 package for RF and portable applications.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline No-lead
- Pin Count
- 7
- Lifecycle
- ACTIVE
- Datasheet
- LDL212PU25R Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LDL212PU25R?
- 1.2 A output current with only 1 V dropout for efficient low-headroom designs
- Input voltage range of 3.5 V to 18 V covering wide supply scenarios
- High power-supply rejection ratio (PSRR) for noise-sensitive RF and audio circuits
- Ultra-low line regulation of 0.0036% and load regulation of 0.015%
- SOT-23-6 package for compact board placement in space-constrained designs
What is LDL212PU25R used for?
The LDL212PU25R is well suited for powering RF transceivers, wireless IoT modules, and portable handheld devices where low noise and high PSRR are essential for signal integrity. Its wide 3.5 V to 18 V input range and 1 V dropout voltage also make it a practical post-regulator in multi-rail power architectures.
What are the specifications of LDL212PU25R?
| YTEOL | 9.03 |
| Adjustability | FIXED |
| Dropout Voltage1-Nom | 1V |
| Input Voltage Absolute-Max | 20V |
| Input Voltage-Max | 18V |
| Input Voltage-Min | 3.5V |
| JESD-30 Code | S-PDSO-N6 |
| Line Regulation-Max | 0.003625% |
| Load Regulation-Max | 0.014875% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 1.2A |
| Output Voltage1-Max | 2.575V |
| Output Voltage1-Min | 2.425V |
| Output Voltage1-Nom | 2.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC6,.11,37 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Packing Method | TR, 13 INCH |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Voltage Tolerance-Max | 3% |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mainland China |
Where can I find the LDL212PU25R datasheet?
LDL212PU25R Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for LDL212PU25R?
Compatible alternatives and drop-in replacements for LDL212PU25R:
Adjustable Positive LDO Regulator, 1.18V Min, 17.4V Max, 0.6V Dropout, DSO6
Frequently Asked Questions
How much input headroom does the LDL212PU25R need to maintain its 2.5 V output at full load?
The LDL212PU25R has a typical dropout voltage of 1 V at 1.2 A output current, so a minimum input of approximately 3.5 V is required to keep the 2.5 V output in regulation, making it efficient in battery-powered and low-rail supply designs.
Why is the LDL212PU25R preferred over a standard LDO for RF front-end power supply filtering?
The LDL212PU25R is designed with a high PSRR characteristic that attenuates switching noise and ripple from upstream converters, keeping noise on the 2.5 V rail below levels that would degrade RF receiver sensitivity or transmitter EVM at frequencies up to several MHz.
What is the maximum input voltage the LDL212PU25R can safely handle?
The absolute maximum input voltage for the LDL212PU25R is 20 V, with a recommended operating maximum of 18 V. This wide range accommodates 12 V and 15 V bus architectures and provides margin against load-dump transients in automotive-adjacent designs.
How does the LDL212PU25R compare with a simple resistor-capacitor filter for supply decoupling?
Unlike a passive RC filter, the LDL212PU25R actively regulates the 2.5 V output to within 0.015% load regulation across the full 1.2 A current range, maintaining a stable voltage regardless of load steps, whereas an RC filter would cause a proportional DC voltage drop at higher currents.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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