Overview
The LP2985IM5-3.1/NOPB is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. Designed for applications requiring a stable and precise voltage supply, this component is part of Texas Instruments' extensive portfolio of power management solutions. The LP2985IM5-3.1/NOPB is particularly suitable for battery-powered devices, portable electronics, and other low-power applications due to its low quiescent current and high efficiency. Its compact SOT-23-5 package makes it ideal for space-constrained designs. The product is positioned as a reliable and cost-effective solution for engineers seeking high-performance voltage regulation in a small footprint.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 3.1 | V | Fixed |
| Output Current | 150 | mA | Maximum |
| Dropout Voltage | 300 | mV | at 150 mA |
| Input Voltage Range | 2.5 to 16 | V | |
| Quiescent Current | 75 | µA | Typical |
| Operating Temperature Range | -40 to 125 | °C | |
| Package | SOT-23-5 | ||
| Line Regulation | 0.02 | %/V | Typical |
| Load Regulation | 0.04 | %/mA | Typical |
| PSRR | 70 | dB | at 1 kHz |
Key Features
- Low Dropout Voltage: Ensures efficient operation even with small differences between input and output voltages.
- Low Quiescent Current: Minimizes power consumption, making it ideal for battery-powered applications.
- Fixed Output Voltage: Provides a stable 3.1 V output, eliminating the need for external resistors.
- High PSRR: Excellent noise rejection for cleaner power delivery in sensitive applications.
- Thermal Shutdown and Current Limit Protection: Enhances reliability by protecting the device from overheating and overcurrent conditions.
Applications
The LP2985IM5-3.1/NOPB is widely used in various applications, including:
- Portable Electronics: Such as smartphones, tablets, and wearable devices, where low power consumption and compact size are critical.
- Battery-Powered Devices: Including wireless sensors, IoT devices, and remote controls, benefiting from its low dropout voltage and quiescent current.
- Consumer Electronics: Such as digital cameras, audio players, and gaming devices, ensuring stable voltage supply for reliable operation.
- Industrial Equipment: Used in low-power control systems and sensors, where robustness and efficiency are essential.
Q & A
1. What is the maximum output current of the LP2985IM5-3.1/NOPB?
The maximum output current is 150 mA.
2. What is the dropout voltage at full load?
The dropout voltage is 300 mV at 150 mA.
3. Can the LP2985IM5-3.1/NOPB operate with an input voltage of 2.5 V?
Yes, the input voltage range is 2.5 V to 16 V.
4. What is the typical quiescent current of this regulator?
The typical quiescent current is 75 µA.
5. Is the output voltage fixed or adjustable?
The output voltage is fixed at 3.1 V.
6. What is the operating temperature range of this device?
The operating temperature range is -40°C to 125°C.
7. Does the LP2985IM5-3.1/NOPB include thermal shutdown protection?
Yes, it includes thermal shutdown and current limit protection.
8. What package does this LDO regulator come in?
It comes in a SOT-23-5 package.
9. What is the typical PSRR of this regulator?
The typical PSRR is 70 dB at 1 kHz.
10. Is this device suitable for battery-powered applications?
Yes, its low dropout voltage and quiescent current make it ideal for battery-powered devices.
