Overview
The LP2985AIM5-3.3/NOPB is a micropower, ultra-low-dropout voltage regulator produced by Texas Instruments. This component is designed to provide a stable and low-noise output voltage, making it suitable for a variety of applications requiring precise voltage regulation. The regulator supports an input voltage range from 2.5 V to 16 V and can deliver up to 150 mA of load current. It features a fixed output voltage of 3.3 V and is available in a compact 5-pin SOT-23 (DBV) package.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LP2985AIM5-3.3/NOPB |
| Package | SOT-23-5 (DBV) |
| Input Voltage Range | 2.5 V to 16 V |
| Output Voltage | 3.3 V (fixed) |
| Output Current | Up to 150 mA |
| Output Accuracy | ±1% over load and temperature |
| Dropout Voltage | 0.35 V |
| Noise | 30 µV RMS with 10-nF bypass capacitor |
| PSRR | 70 dB at 1 kHz, 40 dB at 1 MHz |
| Operating Junction Temperature | -40°C to +125°C |
| Shutdown Current | 1.12 µA (typ) |
Key Features
- Ultra-low dropout voltage of 0.35 V
- Low output noise of 30 µV RMS with a 10-nF bypass capacitor
- High PSRR of 70 dB at 1 kHz and 40 dB at 1 MHz
- Output current limiting and thermal protection
- Internal soft-start time and current-limit protection to reduce inrush current
- Stable operation with 2.2-µF ceramic capacitors
- Low quiescent current (IQ) of 71 µA at no load and 750 µA at full load
- Enable function for power management
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 LP2985AIM5-3.3/NOPB?
The input voltage range is from 2.5 V to 16 V.
- What is the fixed output voltage of the LP2985AIM5-3.3/NOPB?
The fixed output voltage is 3.3 V.
- What is the maximum output current of the LP2985AIM5-3.3/NOPB?
The maximum output current is up to 150 mA.
- What is the dropout voltage of the LP2985AIM5-3.3/NOPB?
The dropout voltage is 0.35 V.
- What is the noise level of the LP2985AIM5-3.3/NOPB with a bypass capacitor?
The noise level is 30 µV RMS with a 10-nF bypass capacitor.
- What is the PSRR of the LP2985AIM5-3.3/NOPB?
The PSRR is 70 dB at 1 kHz and 40 dB at 1 MHz.
- What is the operating junction temperature range of the LP2985AIM5-3.3/NOPB?
The operating junction temperature range is -40°C to +125°C.
- Does the LP2985AIM5-3.3/NOPB have an enable function?
Yes, it has an enable function for power management.
- What type of package is the LP2985AIM5-3.3/NOPB available in?
The LP2985AIM5-3.3/NOPB is available in a 5-pin SOT-23 (DBV) package.
- What are some typical applications of the LP2985AIM5-3.3/NOPB?
Typical applications include washers and dryers, land mobile radios, active antenna systems, cordless power tools, and motor drives and control boards.
