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STMicroelectronics Voltage Regulator LDLN025PU33R 5.5V 4-Pin DFN Surface Mount Ultra Low Noise 12 μA Quiescent Current
Specifications
| Country of Origin | Philippines |
|---|---|
| Brand | STMicroelectronics |
| Height | 350μm |
| Temperature range | from -40 °C to +125 °C |
| Length | 1.05mm |
| Model | LDLN025PU33R |
| Width | 1.05mm |
| Mount Type | Surface |
| Series | LDLN025 |
| Maximum Operating Temperature | 125°C |
| Package Type | DFN |
| Polarity | Positive |
| Maximum Input Voltage | 5.5V |
| Quiescent Current | 425μA |
| Minimum Input Voltage | 1.5V |
| Pin Count | 4 |
| 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 over an input voltage range of 1.5 V to 5.5 V.
- Supports output current up to 250 mA with a dropout voltage of 250 mV at full load.
- Extremely low quiescent current of 12 μA at no-load conditions.
- High power supply rejection ratio of 80 dB at 100 Hz and 60 dB at 100 kHz.
- Output voltage versions available from 1 V to 5 V with 50 mV increments.
- Includes logic-controlled electronic shutdown and output discharge features.
- Offers internal soft-start to prevent inrush current at startup.
- Built-in overcurrent and thermal protections ensure robust operation.
Product Description
STMicroelectronics LDLN025PU33R is a high-performance voltage regulator designed for precise power management in electronic circuits. It operates efficiently over an input voltage range of 1.5 V to 5.5 V, delivering output currents up to 250 mA with a very low dropout voltage of only 250 mV at full load. The device exhibits extremely low quiescent current, with just 12 μA typical at no load, making it ideal for battery-powered and low-power applications.
This Voltage Regulator integrates advanced features including logic-controlled electronic shutdown, output discharge, and internal soft-start to enhance system reliability and reduce power consumption. Its robust design includes overcurrent and thermal protection circuits, safeguarding the device against damage under fault conditions.
The LDLN025PU33R offers excellent power supply rejection ratio (PSRR) performance of 80 dB at 100 Hz and 60 dB at 100 kHz, ensuring stable output voltage with minimal noise interference. Output voltage options range from 1 V to 5 V in fine 50 mV steps, allowing precise voltage level selection for diverse applications.
Packaged in a compact 4-pin DFN surface mount package measuring 1.05 mm by 1.05 mm with a height of 0.35 mm, this regulator is suitable for space-constrained designs in industrial, consumer electronics, and IoT devices. The device operates reliably across a wide temperature range from -40 °C to +125 °C, meeting demanding environmental requirements.
Applications include portable electronics, sensors, embedded systems, and power management in automotive and industrial products. The Philippines-manufactured STMicroelectronics LDLN025PU33R ensures precise voltage regulation with ultra low noise and minimal power consumption.
Operating input voltage: 1.5 V to 5.5 V. Output current capability up to 250 mA. Very low quiescent current and dropout voltage. Logic-controlled shutdown and soft-start for efficient power management. Overcurrent and thermal protection for device safety.
Temperature range -40 °C to +125 °C. Compact, surface mount 4-pin DFN package. Explore a wide array of power management ICs and electronic components at EnvMart for your industrial, automotive, and consumer electronics projects.
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Frequently Asked Questions
This model operates over an input voltage range of 1.5 V to 5.5 V.
It supports output currents up to 250 mA.
The dropout voltage is 250 mV at full load.
The quiescent current is extremely low at 12 μA under no-load conditions.
It exhibits a PSRR of 80 dB at 100 Hz and 60 dB at 100 kHz.
Output voltage versions range from 1 V to 5 V, with increments of 50 mV.
It includes logic-controlled electronic shutdown, output discharge, and an internal soft-start feature.
It is packaged in a compact 4-pin DFN format, measuring 1.05 mm by 1.05 mm with a height of 0.35 mm.
The operating temperature range is from -40 °C to +125 °C.
It features built-in overcurrent and thermal protections to ensure safe operation.
This model is suitable for portable electronics, sensors, embedded systems, and power management in automotive and industrial products.
The LDLN025PU33R is manufactured in the Philippines.
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