Overview
The LP2985AIM5-5.0/NOPB is a fixed-output, wide-input, low-noise, low-dropout voltage regulator produced by Texas Instruments. This component supports an input voltage range from 2.5 V to 16 V and can deliver up to 150 mA of load current. It is designed to meet the needs of low-voltage microcontrollers (MCUs) and processors with its high output accuracy and low noise characteristics.
The LP2985-N series, which includes the LP2985AIM5-5.0/NOPB, is available in a compact 5-pin SOT-23 (DBV) package, making it suitable for a variety of applications where space is limited.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.5 V to 16 V | V |
| Output Voltage Range (New Chip) | 1.2 V to 5.0 V (fixed, 100-mV steps) | V |
| Output Voltage Range (Legacy Chip) | 2.5 V to 6.1 V | V |
| Output Current | Up to 150 mA | mA |
| Output Accuracy (New Chip) | ±0.5% | % |
| Output Accuracy Over Load and Temperature (New Chip) | ±1% | % |
| Quiescent Current (New Chip) at ILOAD = 0 mA | 71 µA | µA |
| Quiescent Current (New Chip) at ILOAD = 150 mA | 750 µA | µA |
| Shutdown Current (New Chip) | 1.12 µA (typ) | µA |
| Output Noise | 30 µV RMS with 10-nF bypass capacitor | µV RMS |
| PSRR at 1 kHz | 70 dB | dB |
| PSRR at 1 MHz | 40 dB | dB |
| Operating Junction Temperature | –40°C to +125°C | °C |
| Package | 5-pin SOT-23 (DBV) |
Key Features
- Wide input voltage range from 2.5 V to 16 V
- Low dropout voltage and high output accuracy
- Low noise output of 30 µV RMS with a 10-nF bypass capacitor
- High PSRR performance: 70 dB at 1 kHz and 40 dB at 1 MHz
- Internal soft-start and current-limit protection to reduce inrush current
- Overcurrent and overtemperature protection
- Stable operation with 2.2-µF ceramic capacitors
- Enable pin for device control
- Compact 5-pin SOT-23 (DBV) package
Applications
- Washers and dryers
- Land mobile radios
- Active antenna systems and mMIMO
- Cordless power tools
- Motor drives and control boards
Q & A
- What is the input voltage range of the LP2985AIM5-5.0/NOPB?
The input voltage range is from 2.5 V to 16 V.
- What are the output voltage ranges for the new and legacy chips?
The new chip supports an output range of 1.2 V to 5.0 V, while the legacy chip supports an output range of 2.5 V to 6.1 V.
- What is the maximum output current of the LP2985AIM5-5.0/NOPB?
The maximum output current is up to 150 mA.
- What is the quiescent current of the new chip at no load and full load?
The quiescent current is 71 µA at no load and 750 µA at a load of 150 mA.
- What is the shutdown current of the new chip?
The shutdown current is typically 1.12 µA.
- How much noise does the LP2985AIM5-5.0/NOPB produce at the output?
The output noise is 30 µV RMS with a 10-nF bypass capacitor.
- What is the PSRR performance of the LP2985AIM5-5.0/NOPB?
The PSRR is 70 dB at 1 kHz and 40 dB at 1 MHz.
- What are the operating junction temperature limits for the LP2985AIM5-5.0/NOPB?
The operating junction temperature range is from –40°C to +125°C.
- What type of package does the LP2985AIM5-5.0/NOPB come in?
The component is packaged in a 5-pin SOT-23 (DBV).
- What are some common applications for the LP2985AIM5-5.0/NOPB?
Common applications include washers and dryers, land mobile radios, active antenna systems, cordless power tools, and motor drives and control boards.
