Overview
The LP2985AIM5X-4.5/NOPB is a low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. Designed for applications requiring a stable and efficient power supply, this regulator is part of the LP2985 series, known for its micropower operation and low-noise performance. The LP2985AIM5X-4.5/NOPB is particularly suitable for portable and non-portable devices, offering a fixed output voltage of 4.5V with a maximum output current of 150mA. Its compact SOT-23-5 package makes it ideal for space-constrained designs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Model | LP2985AIM5X-4.5/NOPB | - | - |
| Output Voltage | 4.5 | V | Fixed |
| Output Current | 150 | mA | Maximum |
| Dropout Voltage | 0.58 | V | @ 150mA |
| Input Voltage Range | 2.5 to 16 | V | - |
| Package | SOT-23-5 | - | - |
| Operating Temperature | -40 to +125 | °C | - |
| PSRR | 45 | dB | Typical |
| Quiescent Current | 95 | µA | Typical |
Key Features
- Low dropout voltage of 0.58V at 150mA, ensuring efficient operation even with low input voltages.
- Fixed output voltage of 4.5V with a tight tolerance of ±1%, providing stable power for sensitive applications.
- Low quiescent current of 95µA, making it ideal for battery-powered devices.
- High power supply rejection ratio (PSRR) of 45dB, reducing noise in the output voltage.
- Compact SOT-23-5 package, suitable for space-constrained designs.
- Built-in protection features including overcurrent and thermal shutdown, enhancing reliability.
Applications
The LP2985AIM5X-4.5/NOPB is widely used in various applications that require a stable and efficient power supply. Common use cases include portable devices such as smartphones, tablets, and wearables, where its low quiescent current and compact size are advantageous. It is also suitable for industrial applications, medical devices, and consumer electronics, where its low-noise performance and high reliability are critical. Additionally, its fixed output voltage makes it ideal for powering microcontrollers, sensors, and other low-power components in embedded systems.
Q & A
1. What is the output voltage of the LP2985AIM5X-4.5/NOPB?
The output voltage is fixed at 4.5V.
2. What is the maximum output current?
The maximum output current is 150mA.
3. What is the dropout voltage?
The dropout voltage is 0.58V at 150mA.
4. What is the input voltage range?
The input voltage range is from 2.5V to 16V.
5. What package does the LP2985AIM5X-4.5/NOPB use?
It uses the SOT-23-5 package.
6. What is the operating temperature range?
The operating temperature range is from -40°C to +125°C.
7. What is the typical quiescent current?
The typical quiescent current is 95µA.
8. Does it have built-in protection features?
Yes, it includes overcurrent and thermal shutdown protection.
9. What is the PSRR of this regulator?
The power supply rejection ratio (PSRR) is typically 45dB.
10. Is this regulator suitable for battery-powered devices?
Yes, its low quiescent current and low dropout voltage make it ideal for battery-powered applications.
