LDL212D15R STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
STMicroelectronics LDL212D15R is a 1.2 A low-dropout linear voltage regulator with 1.5 V fixed output, low quiescent current, and fast transient response. Compact SOT-23-5 package with worldwide stock and competitive pricing.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LDL212D15R Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LDL212D15R?
- 1.2 A output current capability with ultra-low dropout voltage below 300 mV for efficient post-regulation from 3.3 V rails
- Fixed 1.5 V output with tight voltage accuracy of ±2% across temperature for precise analog and digital supply applications
- Compact SOT-23-5 package with low quiescent current for battery-powered portable devices requiring efficient standby power
What is LDL212D15R used for?
The LDL212D15R is designed for post-regulation in portable consumer electronics, wearables, and IoT devices where a stable 1.5 V rail is required from a 3.3 V or higher supply. Its 1.2 A current rating supports microcontrollers, wireless modules, and DDR memory termination networks simultaneously. The low dropout characteristic ensures proper regulation even when the input supply drops to within 300 mV of the 1.5 V output during battery discharge.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the LDL212D15R datasheet?
LDL212D15R Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for LDL212D15R?
Compatible alternatives and drop-in replacements for LDL212D15R:
Adjustable Positive LDO Regulator, 1.18V Min, 17.3V Max, 0.7V Dropout, PDSO8
Frequently Asked Questions
What output voltage and current does the LDL212D15R deliver for embedded power supply designs?
The LDL212D15R delivers a fixed 1.5 V output at up to 1.2 A continuous load current. With a dropout voltage below 300 mV, it can maintain regulation from input voltages as low as 1.8 V, making it suitable for powering 1.5 V LPDDR memory, microcontroller I/O banks, and analog sensor circuits in battery-operated systems with supply voltages down to 1.8 V.
How does the LDL212D15R perform compared to a switching regulator in noise-sensitive analog applications?
Unlike switching regulators that produce ripple at frequencies of 500 kHz to 2 MHz, the LDL212D15R is a linear regulator with inherently low output noise below 50 µV RMS. This makes it the preferred choice for powering precision ADCs, DACs, and RF transceiver analog sections where switching noise would degrade dynamic range and increase the noise floor by more than 20 dB.
Which package does the LDL212D15R use and how does it affect PCB layout for thermal management?
The LDL212D15R is housed in a SOT-23-5 package with a footprint under 3 mm x 3 mm, enabling placement close to the load to minimize supply trace inductance. At maximum 1.2 A output with a 300 mV dropout, power dissipation is approximately 360 mW, requiring a ground copper pour of at least 100 mm² on the PCB to keep junction temperature below 125°C in still-air conditions.
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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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