Overview
The LP2985IM5-2.9/ONOPB is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor. This product is designed to provide a stable 2.9V output voltage with a low dropout voltage, making it ideal for battery-powered and portable applications. The LP2985IM5-2.9/ONOPB is housed in a compact SOT-23-5 package, offering high efficiency and reliability in a small footprint. Its target user groups include designers of consumer electronics, medical devices, and industrial equipment, where power efficiency and space-saving are critical. The LP2985IM5-2.9/ONOPB stands out for its low quiescent current, high accuracy, and robust performance in demanding environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 2.9 | V | Fixed |
| Output Current | 150 | mA | Maximum |
| Dropout Voltage | 300 | mV | Typical at 150mA |
| Input Voltage Range | 2.3 to 16 | V | |
| Quiescent Current | 75 | µA | Typical |
| Line Regulation | 0.02 | %/V | Typical |
| Load Regulation | 0.05 | %/mA | Typical |
| Operating Temperature Range | -40 to +125 | °C | |
| Package | SOT-23-5 |
Key Features
- Low dropout voltage for efficient operation in low-input voltage conditions.
- Low quiescent current, ideal for battery-powered applications.
- High accuracy output voltage with ±2% tolerance.
- Thermal shutdown and current limit protection for enhanced reliability.
- Compact SOT-23-5 package for space-constrained designs.
Applications
The LP2985IM5-2.9/ONOPB is widely used in various applications, including:
- Consumer Electronics: Powering portable devices such as smartphones, tablets, and wearables.
- Medical Devices: Providing stable voltage for sensors and monitoring equipment.
- Industrial Equipment: Ensuring reliable power in control systems and automation devices.
- Automotive Electronics: Supporting low-power components in infotainment and telematics systems.
Q & A
1. What is the maximum output current of the LP2985IM5-2.9/ONOPB?
The maximum output current is 150mA.
2. What is the dropout voltage of this LDO regulator?
The typical dropout voltage is 300mV at 150mA.
3. Can the LP2985IM5-2.9/ONOPB operate with an input voltage below 2.9V?
No, the input voltage must be at least 2.3V to ensure proper operation.
4. What is the quiescent current of this regulator?
The typical quiescent current is 75µA.
5. Does the LP2985IM5-2.9/ONOPB include protection features?
Yes, it includes thermal shutdown and current limit protection.
6. What is the operating temperature range of this device?
It operates within a temperature range of -40°C to +125°C.
7. Is the output voltage fixed or adjustable?
The output voltage is fixed at 2.9V.
8. What package does the LP2985IM5-2.9/ONOPB come in?
It is available in a SOT-23-5 package.
9. Can this regulator be used in automotive applications?
Yes, it is suitable for automotive electronics, provided it operates within the specified temperature range.
10. What is the typical line regulation of this device?
The typical line regulation is 0.02%/V.
