Overview
The LP2985AIM5-3.6/NOPB is a fixed-output, low-noise, low-dropout voltage regulator produced by Texas Instruments. This device is part of the LP2985-N series and is designed to offer high performance and reliability in a compact package. It supports an input voltage range from 2.5 V to 16 V and can deliver up to 150 mA of continuous load current. The LP2985AIM5-3.6/NOPB is particularly suited for applications requiring low noise and high power supply rejection ratio (PSRR), making it ideal for use in low-voltage microcontrollers (MCUs) and processors.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.5 to 16 | V |
| Output Voltage | 3.6 (fixed) | V |
| Output Current | Up to 150 | mA |
| Output Voltage Accuracy | ±0.5% (new chip) | % |
| Dropout Voltage | 1 to 2.75 (at IOUT = 0 mA) | mV |
| Quiescent Current (Iq) | 71 μA (at ILOAD = 0 mA), 750 μA (at ILOAD = 150 mA) | μA |
| Shutdown Current | 1.12 μA (typ) | μA |
| Output Noise Voltage | 30 μVRMS (with 10-nF bypass capacitor) | μVRMS |
| PSRR | 70 dB at 1 kHz, 40 dB at 1 MHz | dB |
| Operating Junction Temperature | –40°C to +125°C | °C |
| Package | 5-pin SOT-23 (DBV) |
Key Features
- Low noise: 30 μVRMS with a 10-nF bypass capacitor.
- High PSRR: 70 dB at 1 kHz and 40 dB at 1 MHz.
- Low dropout voltage: 1 to 2.75 mV at IOUT = 0 mA.
- Integrated overcurrent protection and thermal shutdown.
- Internal soft-start mechanism to reduce inrush current.
- Output enable pin for independent control of the output voltage.
- Stable with low-ESR output capacitors (minimum 2.2 μF).
- Operating junction temperature range: –40°C to +125°C.
Applications
- Washers and dryers
- Land mobile radios
- Active antenna systems and mMIMO
- Cordless power tools
- Motor drives and control boards
- Low-voltage microcontrollers (MCUs) and processors
Q & A
- What is the input voltage range of the LP2985AIM5-3.6/NOPB? The input voltage range is from 2.5 V to 16 V.
- What is the fixed output voltage of the LP2985AIM5-3.6/NOPB? The fixed output voltage is 3.6 V.
- What is the maximum output current of the LP2985AIM5-3.6/NOPB? The maximum output current is up to 150 mA.
- What is the output voltage accuracy of the LP2985AIM5-3.6/NOPB? The output voltage accuracy is ±0.5% for the new chip.
- What is the typical dropout voltage of the LP2985AIM5-3.6/NOPB? The typical dropout voltage is 1 to 2.75 mV at IOUT = 0 mA.
- What is the quiescent current (Iq) of the LP2985AIM5-3.6/NOPB? The quiescent current is 71 μA at ILOAD = 0 mA and 750 μA at ILOAD = 150 mA.
- Does the LP2985AIM5-3.6/NOPB have built-in protection features? Yes, it includes overcurrent protection, thermal shutdown, and output enable.
- What is the operating junction temperature range of the LP2985AIM5-3.6/NOPB? The operating junction temperature range is –40°C to +125°C.
- What type of package does the LP2985AIM5-3.6/NOPB come in? It comes in a 5-pin SOT-23 (DBV) package.
- Is the LP2985AIM5-3.6/NOPB stable with low-ESR output capacitors? Yes, it is stable with low-ESR output capacitors (minimum 2.2 μF).
