Overview
The LP2985AIM5-4.5/NOPB is a low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. Designed for applications requiring stable and low-noise power supply, this component is housed in a SOT-23-5 package, making it suitable for space-constrained designs. It is particularly well-suited for use in consumer electronics, industrial equipment, and automotive systems where efficient power management is critical. Its key selling points include a fixed 4.5V output, low dropout voltage, and high noise suppression, making it a competitive choice in its category.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage (Max) | 16 | V | |
| Output Voltage | 4.5 | V | Fixed |
| Output Current | 150 | mA | |
| Dropout Voltage | 0.28 | V | @ 150mA |
| Operating Temperature | -40 to +125 | °C | |
| Package | SOT-23-5 | ||
| PSRR | 45 | dB | @ 1kHz |
| Regulator Topology | Positive, Fixed |
Key Features
- Fixed 4.5V output voltage for consistent power delivery.
- Low dropout voltage of 0.28V at 150mA, ensuring efficient operation even with low input voltages.
- High power supply rejection ratio (PSRR) of 45dB at 1kHz, minimizing noise in sensitive applications.
- Wide operating temperature range from -40°C to +125°C, suitable for harsh environments.
- Compact SOT-23-5 package, ideal for space-constrained designs.
Applications
The LP2985AIM5-4.5/NOPB is widely used in various applications, including:
- Consumer Electronics: Powering low-noise components such as audio amplifiers and displays.
- Industrial Equipment: Providing stable voltage for sensors, controllers, and communication modules.
- Automotive Systems: Ensuring reliable power supply for infotainment and control units.
- Portable Devices: Supporting efficient power management in battery-operated devices.
Q & A
What is the maximum input voltage for the LP2985AIM5-4.5/NOPB?
The maximum input voltage is 16V.
What is the output voltage of this regulator?
The output voltage is fixed at 4.5V.
What is the dropout voltage at 150mA?
The dropout voltage is 0.28V at 150mA.
What is the operating temperature range?
The operating temperature ranges from -40°C to +125°C.
What package does this component use?
It uses a SOT-23-5 package.
What is the PSRR of this regulator?
The PSRR is 45dB at 1kHz.
Is the output voltage adjustable?
No, the output voltage is fixed at 4.5V.
What is the maximum output current?
The maximum output current is 150mA.
Can this regulator be used in automotive applications?
Yes, it is suitable for automotive systems due to its wide temperature range and stable performance.
Is the LP2985AIM5-4.5/NOPB RoHS compliant?
Yes, it is RoHS compliant.
