Overview
The LP2985AITL-3.3/NOPB is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. Designed for applications requiring a stable and low-noise power supply, this component is particularly suited for portable and battery-powered devices. It delivers a fixed output voltage of 3.3V with a maximum output current of 150mA, making it ideal for powering sensitive electronics such as microcontrollers, sensors, and communication modules. The LP2985AITL-3.3/NOPB is housed in a compact 5-WFBGA package, ensuring minimal footprint on PCBs. Its low dropout voltage and ultra-low noise characteristics make it a competitive choice in the LDO market.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 3.3 | V | Fixed |
| Output Current | 150 | mA | Max |
| Input Voltage | 2.5 to 16 | V | |
| Dropout Voltage | 0.28 | V | @ 150mA |
| Quiescent Current | 95 | µA | |
| Operating Temperature | -40 to +125 | °C | |
| Package | 5-WFBGA | uSMD | |
| PSRR | 45 | dB | |
| Load Regulation | 0.1 | % | |
| Line Regulation | 0.05 | % |
Key Features
- Fixed 3.3V output voltage for consistent power delivery.
- Ultra-low dropout voltage of 0.28V @ 150mA, enhancing efficiency in low-voltage applications.
- Low quiescent current of 95µA, optimizing battery life in portable devices.
- High power supply rejection ratio (PSRR) of 45dB, ensuring minimal noise in sensitive circuits.
- Compact 5-WFBGA package for space-constrained designs.
- Robust protection features including overcurrent, overtemperature, and short-circuit protection.
Applications
The LP2985AITL-3.3/NOPB is widely used in various industries due to its reliable performance and compact design. Key application areas include:
- Portable Electronics: Powering microcontrollers, sensors, and wireless modules in handheld devices.
- Consumer Electronics: Providing stable voltage to audio and video components in smart devices.
- Industrial Automation: Ensuring reliable power supply in control systems and sensors.
- Medical Devices: Supporting low-noise operation in diagnostic and monitoring equipment.
- IoT Devices: Enabling efficient power management in connected devices.
Q & A
1. What is the output voltage of the LP2985AITL-3.3/NOPB?
The output voltage is fixed at 3.3V.
2. What is the maximum output current?
The maximum output current is 150mA.
3. What is the dropout voltage of this LDO?
The dropout voltage is 0.28V at 150mA.
4. What is the operating temperature range?
It operates from -40°C to +125°C.
5. What package does the LP2985AITL-3.3/NOPB use?
It is housed in a 5-WFBGA (uSMD) package.
6. Is this LDO suitable for battery-powered devices?
Yes, its low quiescent current and low dropout voltage make it ideal for battery-powered applications.
7. Does it have built-in protection features?
Yes, it includes overcurrent, overtemperature, and short-circuit protection.
8. What is the PSRR of this LDO?
The power supply rejection ratio (PSRR) is 45dB.
9. Can it handle input voltages up to 16V?
Yes, the input voltage range is 2.5V to 16V.
10. Is the LP2985AITL-3.3/NOPB RoHS compliant?
Yes, it is RoHS compliant.
