Overview
The LP2985AIM5-3.8/NOPB is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. This product is designed to provide a stable and precise 3.8V output voltage, making it ideal for applications requiring reliable power management. It is part of the LP2985 series, known for its low quiescent current and high accuracy. The LP2985AIM5-3.8/NOPB is packaged in a compact SOT-23-5 (SOT-25) form factor, making it suitable for space-constrained designs. Its target user groups include designers of portable electronics, IoT devices, and battery-powered systems. The product stands out for its low dropout voltage, high PSRR (Power Supply Rejection Ratio), and excellent thermal performance.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 3.8 | V | Fixed |
| Output Current | 150 | mA | Maximum |
| Dropout Voltage | 300 | mV | at 150 mA |
| Input Voltage Range | 2.5 to 16 | V | |
| Quiescent Current | 85 | µA | Typical |
| PSRR | 70 | dB | at 1 kHz |
| Operating Temperature Range | -40 to 125 | °C | |
| Package | SOT-23-5 | ||
| Load Regulation | 0.1 | % | Typical |
| Line Regulation | 0.02 | %/V | Typical |
Key Features
- Low Dropout Voltage: Ensures efficient operation even with small input-output differentials.
- High PSRR: Provides excellent noise rejection, making it suitable for sensitive applications.
- Low Quiescent Current: Enhances battery life in portable devices.
- Thermal Protection: Includes built-in thermal shutdown to prevent overheating.
- Compact Package: SOT-23-5 package is ideal for space-constrained designs.
Applications
The LP2985AIM5-3.8/NOPB is widely used in various applications, including:
- Portable Electronics: Smartphones, tablets, and wearable devices benefit from its low power consumption and compact size.
- IoT Devices: Ensures stable power supply for sensors and communication modules.
- Battery-Powered Systems: Extends battery life in devices like remote controls and medical devices.
- Consumer Electronics: Used in audio equipment, cameras, and other low-power devices.
Q & A
1. What is the output voltage of the LP2985AIM5-3.8/NOPB?
The output voltage is fixed at 3.8V.
2. What is the maximum output current?
The maximum output current is 150 mA.
3. What is the dropout voltage at 150 mA?
The dropout voltage is 300 mV at 150 mA.
4. What is the input voltage range?
The input voltage range is 2.5V to 16V.
5. What is the quiescent current?
The typical quiescent current is 85 µA.
6. What is the PSRR of this regulator?
The PSRR is 70 dB at 1 kHz.
7. What is the operating temperature range?
The operating temperature range is -40°C to 125°C.
8. What package does this regulator come in?
It comes in a SOT-23-5 package.
9. Does it include thermal protection?
Yes, it includes built-in thermal shutdown protection.
10. What are typical applications for this regulator?
Typical applications include portable electronics, IoT devices, and battery-powered systems.
