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STMicroelectronics Voltage Regulator 5.5V Ultra Low Noise SOT-23 5-Pin LDLN025M33R
Specifications
| Country of Origin | India |
|---|---|
| Brand | STMicroelectronics |
| Height | 1.3mm |
| Temperature range | from -40 °C to +125 °C |
| Length | 2.95mm |
| Model | LDLN025M33R |
| 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
- Operates with input voltage from 1.5 V to 5.5 V.
- Maintains very low quiescent current of 12 μA at no-load conditions.
- Delivers output current up to 250 mA with a low dropout voltage of 250 mV.
- Features ultra low output noise of 6.5 μVRMS for sensitive applications.
- Offers output voltage accuracy of ±2% across line, load, and temperature variations.
- Includes logic-controlled electronic shutdown and internal soft-start for reliable operation.
- Equipped with overcurrent and thermal protection mechanisms.
- Designed to operate in temperature range from -40 °C to +125 °C.
Product Description
STMicroelectronics LDLN025M33R is a highly efficient voltage regulator designed for precise power management in electronic circuits. Packaged in a compact SOT-23 5-pin surface-mount package, it supports input voltages from 1.5 V up to 5.5 V and delivers a stable output current up to 250 mA. This device is optimized for low noise applications with an ultra low output noise level of 6.5 μVRMS, making it suitable for sensitive analog and RF circuits.
The regulator features a very low dropout voltage of 250 mV at full load, ensuring consistent voltage regulation close to the input voltage levels. It consumes a minimal quiescent current of 12 μA at no-load and maintains controlled current in dropout conditions, optimizing power efficiency for battery-operated devices.
Additional features include logic-controlled electronic shutdown for power saving, internal soft-start to prevent inrush current, and robust protections against overcurrent and thermal overload, enhancing reliability in demanding industrial or consumer electronic applications.
Designed to operate reliably over a wide temperature range from -40 °C to +125 °C, the LDLN025M33R is well suited for automotive, industrial, and consumer electronics requiring compact, stable voltage regulation.
Input voltage range: 1.5 V to 5.5 V with positive polarity. Output voltage versions available from 1 V to 5 V in 50 mV increments. Pin count: 5 pins in SOT-23 package measuring 2.95 x 1.65 x 1.3 mm. High power supply rejection ratio (PSRR): 80 dB at 100 Hz, 60 dB at 100 kHz.
Quiescent current: 425 μA typical, 12 μA at no-load.
This Voltage Regulator is ideal for applications in industrial power management, telecommunications, consumer electronics, and automotive systems requiring precise and efficient voltage regulation in a small footprint. EnvMart customers can leverage this device for robust, low-noise power supply solutions.
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Frequently Asked Questions
It operates with an input voltage range from 1.5 V to 5.5 V.
This voltage regulator can deliver an output current of up to 250 mA.
It features a very low dropout voltage of 250 mV at full load.
The quiescent current is 12 μA at no-load conditions.
It has an ultra low output noise level of 6.5 μVRMS, making it suitable for sensitive applications.
This voltage regulator is designed to operate in a temperature range from -40 °C to +125 °C.
The SOT-23 package measures 2.95 mm in length, 1.65 mm in width, and 1.3 mm in height.
Yes, it includes overcurrent and thermal protection mechanisms for enhanced reliability.
Output voltage versions are available from 1 V to 5 V in 50 mV increments.
It has a high PSRR of 80 dB at 100 Hz and 60 dB at 100 kHz.
It is designed for surface mounting.
This model belongs to the LDLN025 series.
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