Overview
The LP2985AIM5-2.7/NOPB is a high-performance, low-noise, low-dropout voltage regulator from Texas Instruments. This fixed output voltage regulator IC is designed to deliver up to 150 mA of continuous output current at a fixed output voltage of 2.7V. It is part of Texas Instruments' green initiative, marked as lead-free (No Lead) and RoHS compliant, making it an environmentally friendly choice. The regulator supports an input voltage range from 2.5 V to 16 V, making it versatile for various applications requiring a clean and stable voltage supply.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 2.7 | V |
| Output Current | Up to 150 | mA |
| Input Voltage Range | 2.5 to 16 | V |
| Dropout Voltage | Typically 280 mV at full load | mV |
| Output Voltage Accuracy | ±1% (new chip), ±1.5% (standard-grade legacy chip) | % |
| Operating Junction Temperature | –40 to +125 | °C |
| Package | 5-pin SOT-23 (DBV) | |
| Low Noise | 30 µV RMS with 10-nF bypass capacitor | µV RMS |
| PSRR | 70 dB at 1 kHz, 40 dB at 1 MHz | dB |
| Shutdown Current | 0.05 µA (typ) for legacy chip, 1.12 µA (typ) for new chip | µA |
Key Features
- Ultra-low dropout voltage regulator with a typical dropout of 280 mV at full load.
- High output current capability of up to 150 mA.
- Low noise output of 30 µV RMS with a 10-nF bypass capacitor.
- High power supply rejection ratio (PSRR) of 70 dB at 1 kHz and 40 dB at 1 MHz.
- Stable operation with low-ESR output capacitors.
- Internal soft-start and current-limit protection to reduce inrush current during startup.
- Overcurrent and overtemperature protection.
- Lead-free and RoHS compliant, aligning with environmental regulations.
Applications
The LP2985AIM5-2.7/NOPB is suitable for a wide range of applications, including:
- Sensitive analog circuits requiring a clean voltage supply.
- Low-voltage microcontrollers (MCUs) and processors.
- Systems needing low-noise and low-dropout voltage regulation.
- Portable and battery-powered devices where power efficiency is crucial.
Q & A
- What is the output voltage of the LP2985AIM5-2.7/NOPB?
The output voltage is fixed at 2.7V. - What is the maximum output current of the LP2985AIM5-2.7/NOPB?
The maximum output current is up to 150 mA. - What is the input voltage range for the LP2985AIM5-2.7/NOPB?
The input voltage range is from 2.5 V to 16 V. - What is the typical dropout voltage of the LP2985AIM5-2.7/NOPB?
The typical dropout voltage is 280 mV at full load. - Is the LP2985AIM5-2.7/NOPB environmentally friendly?
Yes, it is lead-free and RoHS compliant. - What is the noise level of the LP2985AIM5-2.7/NOPB?
The noise level is 30 µV RMS with a 10-nF bypass capacitor. - What is the PSRR of the LP2985AIM5-2.7/NOPB?
The PSRR is 70 dB at 1 kHz and 40 dB at 1 MHz. - What protection features does the LP2985AIM5-2.7/NOPB have?
It includes overcurrent, overtemperature protection, and internal soft-start and current-limit protection. - In what package is the LP2985AIM5-2.7/NOPB available?
It is available in a 5-pin SOT-23 (DBV) package. - What is the operating junction temperature range of the LP2985AIM5-2.7/NOPB?
The operating junction temperature range is –40°C to +125°C.
