LDK220C30R STMicroelectronics Integrated Circuit (SOT23 (5-Pin)) In Stock
The LDK220C30R is a 200 mA fixed-output LDO linear regulator from STMicroelectronics, offering ultra-low quiescent current, low noise, and a 1 V typical dropout voltage across a 4 V to 13.2 V input range in a compact 5-pin SOT-23 package. It is well suited for always-on battery-powered and noise-sensitive analog supply rails.
- Manufacturer
- STMicroelectronics
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- LDK220C30R Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LDK220C30R?
- 200 mA output current capacity for powering mixed-signal and RF sub-systems
- Low dropout voltage of 1 V (nominal) extending battery run-time in portable devices
- Ultra-low quiescent current minimizing standby power drain in always-on applications
- Low noise output ideal for powering ADC references, RF front-ends, and audio circuits
- Wide input range 4 V to 13.2 V (abs max 14 V) for versatile supply compatibility
- 5-pin SOT-23 package with small footprint for space-constrained PCB designs
What is LDK220C30R used for?
The LDK220C30R is commonly used to supply noise-sensitive analog sub-circuits such as ADC reference rails, RF transceivers, and audio pre-amplifiers in portable IoT devices, wearables, and handheld instruments where low quiescent current extends battery life. It also serves as a point-of-load regulator in industrial sensor modules and medical monitoring equipment where output noise below a few µV RMS is required to maintain measurement accuracy.
What are the specifications of LDK220C30R?
| YTEOL | 9.03 |
| Adjustability | FIXED |
| Dropout Voltage1-Nom | 1V |
| Input Voltage Absolute-Max | 14V |
| Input Voltage-Max | 13.2V |
| Input Voltage-Min | 4V |
| JESD-30 Code | R-PDSO-G5 |
| Line Regulation-Max | 0.0138% |
| Load Regulation-Max | 0.01791% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.2A |
| Output Voltage1-Max | 3.09V |
| Output Voltage1-Min | 2.91V |
| Output Voltage1-Nom | 3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Voltage Tolerance-Max | 3% |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia |
Where can I find the LDK220C30R datasheet?
LDK220C30R Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for LDK220C30R?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of the LDK220C30R, and how does it affect minimum battery voltage selection?
The LDK220C30R has a nominal dropout voltage of 1 V, meaning the input supply must exceed the regulated output by at least 1 V to maintain regulation. For a 3.3 V output rail, the battery or upstream supply should remain above 4.3 V throughout discharge; this headroom constraint typically determines the battery end-of-discharge cutoff voltage in portable designs.
How does the LDK220C30R's output noise specification benefit ADC and RF circuit designs?
The LDK220C30R is characterized as a low-noise LDO, producing minimal spectral noise density on the output rail. Powering a 12-bit or higher ADC reference from a noisy supply can degrade effective number of bits (ENOB); using the LDK220C30R to provide a clean 200 mA supply keeps noise-induced errors well below 1 LSB at typical sample rates.
What input voltage range does the LDK220C30R support, and is it compatible with automotive 12 V systems?
The LDK220C30R accepts an input voltage from 4 V minimum to 13.2 V maximum, with an absolute maximum of 14 V. This range comfortably covers regulated 12 V automotive auxiliary rails after transient suppression, though the part is not AEC-Q100 qualified, so a separate automotive-grade LDO should be evaluated for safety-critical vehicle applications.
What does the YTEOL of approximately 9 years indicate for procurement planning with the LDK220C30R?
A YTEOL of 9 years means the LDK220C30R is projected to remain in active production for approximately 9 more years from the assessment date. Designers committing it to a 5-year production product can source with confidence, while those targeting 10-year or longer service lives should negotiate last-time-buy provisions or qualify a second-source 200 mA SOT-23 LDO as a design-in alternative.
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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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