LDL212PU30R STMicroelectronics Integrated Circuit (Small Outline No-lead) In Stock
STMicroelectronics LDL212PU30R is a high-PSRR low-dropout linear regulator delivering a fixed 3 V output at up to 1.2 A from a 4 V to 18 V input, with a typical dropout voltage of 1 V. It provides excellent line regulation of 0.004% and load regulation of 0.018% in a compact 6-pin DFN 3x3 mm package. Available worldwide for noise-sensitive analog and RF power supply designs.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline No-lead
- Pin Count
- 7
- Lifecycle
- ACTIVE
- Datasheet
- LDL212PU30R Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LDL212PU30R?
- High PSRR low-dropout regulator with 1 V typical dropout at 1.2 A, supporting 4 V to 18 V input for wide supply compatibility
- Fixed 3 V output with 0.004% line regulation and 0.018% load regulation ensures stable voltage for precision analog and RF circuits
- 6-pin DFN 3x3 mm no-lead package minimizes PCB footprint while enabling excellent thermal dissipation in compact designs
What is LDL212PU30R used for?
The LDL212PU30R is designed to supply clean, stable 3 V power to noise-sensitive circuits such as RF transceivers, ADCs, and precision analog sensors in IoT devices, wearables, and portable medical instruments. Its high PSRR characteristic attenuates switching noise from upstream DC-DC converters, allowing direct post-regulation without additional filtering. The compact DFN 3x3 mm package and 1.2 A output make it suitable for space-constrained designs in industrial sensors and communication modules.
What are the specifications of LDL212PU30R?
| YTEOL | 9.03 |
| Adjustability | FIXED |
| Dropout Voltage1-Nom | 1V |
| Input Voltage Absolute-Max | 20V |
| Input Voltage-Max | 18V |
| Input Voltage-Min | 4V |
| JESD-30 Code | S-PDSO-N6 |
| Line Regulation-Max | 0.0042% |
| Load Regulation-Max | 0.01785% |
| 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 | 3.09V |
| Output Voltage1-Min | 2.91V |
| Output Voltage1-Nom | 3V |
| 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 LDL212PU30R datasheet?
LDL212PU30R Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for LDL212PU30R?
Compatible alternatives and drop-in replacements for LDL212PU30R:
Adjustable Positive LDO Regulator, 1.18V Min, 17.4V Max, 0.6V Dropout, DSO6
Frequently Asked Questions
What is the dropout voltage and maximum output current of the LDL212PU30R at full load?
The LDL212PU30R has a typical dropout voltage of 1 V at its maximum output current of 1.2 A. This means the input supply must be at least 4 V to maintain the regulated 3 V output, making it suitable for battery-powered designs where input voltage can dip close to the output rail during discharge cycles.
How does the LDL212PU30R's high PSRR benefit RF and ADC power supply designs?
High PSRR (power supply rejection ratio) in the LDL212PU30R attenuates noise and ripple injected by upstream switching regulators, preventing it from coupling into sensitive RF front-end or 12-bit to 16-bit ADC supply pins. This allows system designers to use an efficient switching pre-regulator followed by the LDL212PU30R as a post-regulator, achieving both efficiency and low noise without large LC filter networks.
For a 12 V input system, how far below the input voltage can the LDL212PU30R regulate to 3 V while meeting load regulation?
With a 12 V input, the LDL212PU30R regulates to a fixed 3 V output, a 9 V headroom that is well above the 1 V dropout requirement. It maintains load regulation within 0.018% from no-load to 1.2 A full load, meaning the output varies by less than 1 mV across the full load range, satisfying tight precision requirements in industrial sensor and analog front-end designs.
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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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