Overview
The LP2985AITP-3.3/NOPB is a low-dropout (LDO) linear voltage regulator produced by Texas Instruments. This component is designed for applications requiring a stable 3.3V output with a maximum current of 150mA. It is housed in a 5-UFBGA (DSBGA) package, making it suitable for compact and space-constrained designs. The LP2985AITP-3.3/NOPB is positioned as a micropower, low-noise, ultra-low-dropout regulator, ideal for battery-powered devices, portable electronics, and other applications where power efficiency and noise reduction are critical.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 3.3 | V | Fixed |
| Maximum Input Voltage | 16 | V | |
| Output Current | 150 | mA | |
| Dropout Voltage | 0.28 | V | @ 150mA |
| Operating Temperature | -40 to +125 | °C | |
| Package | 5-UFBGA | DSBGA | |
| PSRR (Power Supply Rejection Ratio) | 45 | dB | Typical |
| Quiescent Current | 95 | µA | |
| Line Regulation | 0.014 | %/V | |
| Load Regulation | 0.003 | V | @ 0mA to 150mA |
Key Features
- Ultra-low dropout voltage for efficient operation in low-voltage applications.
- Low noise output, making it suitable for sensitive analog and RF circuits.
- Built-in protection features including overcurrent, overtemperature, and short-circuit protection.
- Compact 5-UFBGA package for space-constrained designs.
- Wide input voltage range (2.5V to 16V) for versatile applications.
Applications
The LP2985AITP-3.3/NOPB is widely used in portable electronics, battery-powered devices, and applications requiring stable and low-noise power supplies. It is particularly suitable for use in smartphones, tablets, wearable devices, and IoT modules. Its low dropout voltage and high efficiency make it ideal for extending battery life in these applications. Additionally, it is used in medical devices, industrial control systems, and automotive electronics where reliability and performance are critical.
Q & A
1. What is the maximum input voltage for the LP2985AITP-3.3/NOPB?
The maximum input voltage is 16V.
2. What is the output current capability of this regulator?
The output current is 150mA.
3. What is the dropout voltage at 150mA?
The dropout voltage is 0.28V at 150mA.
4. What is the operating temperature range?
The operating temperature range is -40°C to +125°C.
5. What package does the LP2985AITP-3.3/NOPB come in?
It comes in a 5-UFBGA (DSBGA) package.
6. Is this regulator suitable for battery-powered applications?
Yes, its low dropout voltage and low quiescent current make it ideal for battery-powered devices.
7. Does it have built-in protection features?
Yes, it includes overcurrent, overtemperature, and short-circuit protection.
8. What is the typical PSRR of this regulator?
The typical PSRR is 45dB.
9. Can it be used in automotive applications?
Yes, it is suitable for automotive electronics due to its wide operating temperature range and reliability.
10. What is the quiescent current of the LP2985AITP-3.3/NOPB?
The quiescent current is 95µA.
