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STMicroelectronics Voltage Regulator 5.5V SOT-23 5-Pin LDLN025M45R
Specifications
| Country of Origin | Malaysia |
|---|---|
| Brand | STMicroelectronics |
| Height | 1.3mm |
| Temperature range | from -40 °C to +125 °C |
| Length | 2.95mm |
| Model | LDLN025M45R |
| Width | 1.65mm |
| Mount Type | Surface |
| Series | LDLN025 |
| Maximum Operating Temperature | 125°C |
| Package Type | SOT-23 |
| Polarity | Positive |
| Maximum Input Voltage | 5.5V |
| Quiescent Current | 425μA |
| Minimum Input Voltage | 1.5V |
| Pin Count | 5 |
| Very low-dropout voltage | 250 mV at 250 mA |
| Packages | Flip-Chip4, DFN4-1x1, SOT23-5L |
| Output voltage versions | from 1 V to 5 V, with 50 mV step |
| Ultra low output noise | 6.5 μVRMS |
| Operating input voltage range | 1.5 V to 5.5 V |
| Very low quiescent current | 12 μA at no-load |
| Very high PSRR | 80 dB@100 Hz, 60 dB @ 100 kHz |
Key Features
- Designed with very low quiescent current of 12 μA at no load for energy efficiency.
- Features very low dropout voltage of 250 mV at 250 mA load for stable output.
- Offers output voltage accuracy of ±2% across line, load, and temperature variations.
- Includes logic-controlled electronic shutdown and internal soft-start for controlled operation.
- Equipped with overcurrent and thermal protections for enhanced device safety.
- Temperature range from -40 °C to +125 °C for industrial and automotive applications.
- Package available in SOT-23 5-Pin for compact surface mount applications.
- High PSRR of 80 dB at 100 Hz and 60 dB at 100 kHz to reduce output noise.
Product Description
STMicroelectronics LDLN025M45R is a positive voltage regulator optimized for low noise and stable power supply output, packaged in a compact SOT-23 5-pin surface mount device. It supports an operating input voltage from 1.5 V to 5.5 V and delivers an output current of up to 250 mA, making it suitable for various automotive, industrial, and consumer electronics applications.
This regulator features a very low dropout voltage of 250 mV at 250 mA load, ensuring efficient power delivery even at low input voltages. The device's ultra-low output noise of 6.5 μVRMS and high PSRR (Power Supply Rejection Ratio) of 80 dB at 100 Hz and 60 dB at 100 kHz minimize supply disturbances, ideal for noise-sensitive circuits.
The LDLN025M45R is designed with a very low quiescent current of 12 μA under no load and 425 μA nominal quiescent current providing energy-efficient operation. Safety features include overcurrent protection and thermal shutdown safeguards to prevent damage under fault conditions.
Operating over a temperature range of -40 °C to +125 °C, this voltage regulator reliably operates in harsh environments. Additional features include logic-controlled electronic shutdown, output discharge, and an internal soft-start to reduce inrush current at startup.
Common applications include automotive electronics, portable devices, industrial instrumentation, and power management circuits requiring stable and precise voltage regulation in compact formats.
Ultra-low output noise of 6.5 μVRMS ensures clean power delivery. Supports wide operating input voltage 1.5 V to 5.5 V. Very low dropout voltage of 250 mV at full load enhances efficiency. Output voltage accuracy of ±2% across various conditions.
Logic-controlled shutdown and internal soft-start features. Robust overcurrent and thermal protection for device reliability. Compact SOT-23 5-pin surface mount package design. High PSRR reduces stray noise at output supply.
Wide operating temperature range from -40 °C to +125 °C. Explore more products in the Power Management IC category on EnvMart for advanced electronic component solutions.
Explore more products in our Voltage Regulator IC category.
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Frequently Asked Questions
The LDLN025M45R operates within an input voltage range of 1.5 V to 5.5 V.
It can deliver an output current of up to 250 mA.
The dropout voltage is 250 mV at a load of 250 mA.
The quiescent current is very low at 12 μA under no load conditions.
It operates over a temperature range from -40 °C to +125 °C.
This model comes in a SOT-23 5-pin surface mount package.
The output voltage accuracy is ±2% across various conditions.
It includes overcurrent protection and thermal shutdown safeguards for enhanced safety.
The ultra-low output noise is 6.5 μVRMS.
The PSRR is 80 dB at 100 Hz and 60 dB at 100 kHz.
Yes, it features a logic-controlled electronic shutdown.
The dimensions of the SOT-23 package are 2.95 mm in length, 1.65 mm in width, and 1.3 mm in height.
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