Overview
The LP2998MAX/NOPB is a high-performance, low-dropout linear regulator designed by Texas Instruments. This voltage regulator is optimized for both portable and stationary electronic devices, offering a stable output voltage to ensure the reliability and efficiency of modern electronic applications. It is particularly suitable for battery-powered systems due to its low quiescent current consumption. The regulator also features a soft-start function to prevent inrush current during power-up, enhancing the safety and longevity of connected components.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LP2998MAX/NOPB |
| Package | SOIC-8 |
| Input Voltage Range | 2.2 V to 5.5 V |
| Output Voltage Range | Adjustable or Fixed (1.2 V to 5.5 V) |
| Maximum Output Current | Up to 250 mA |
| Drop-Out Voltage | Typically 0.2 V @ 100 mA |
| Quiescent Current | 20 µA maximum under no load |
| Operating Temperature Range | -40°C to 125°C |
| Power Supply Rejection Ratio (PSRR) | 50 dB at 1 kHz |
| Protection Features | Thermal Shutdown and Overcurrent Protection |
Key Features
- Adjustable or fixed output voltage options (1.2 V to 5.5 V)
- Maximum output current up to 250 mA
- Low drop-out voltage (typically 0.2 V @ 100 mA)
- Low quiescent current (20 µA maximum under no load)
- Wide operating temperature range (-40°C to 125°C)
- High power supply rejection ratio (PSRR) of 50 dB at 1 kHz
- Built-in thermal shutdown and overcurrent protection
- Soft-start functionality to limit inrush current
- Compact package options (5-pin SC70 or SOT23)
Applications
- Portable electronic devices such as smartphones and tablets
- Battery-powered equipment including wearable technology
- Power management in microcontrollers and DSPs
- Low-voltage power supplies for RF and analog applications
- Automotive electronics and industrial automation systems
- Telecommunications and networking equipment
Q & A
- What is the typical drop-out voltage of the LP2998MAX/NOPB?
The typical drop-out voltage is around 0.2 V at 100 mA.
- Can this regulator be used for adjustable output voltage applications?
Yes, the LP2998MAX/NOPB features an adjustable option by using the ADJ pin.
- What protection features are integrated into this IC?
The device includes thermal shutdown and overcurrent protection to enhance reliability.
- What is the maximum output current this regulator can deliver?
The LP2998MAX/NOPB can deliver up to 250 mA of output current.
- Is the LP2998MAX/NOPB suitable for automotive applications?
Absolutely, its wide temperature range and protection features make it suitable for automotive use.
- What is the operating temperature range of the LP2998MAX/NOPB?
The operating temperature range is -40°C to 125°C.
- Does the LP2998MAX/NOPB have a soft-start feature?
Yes, it includes a soft-start function to limit inrush current during power-up.
- What is the power supply rejection ratio (PSRR) of the LP2998MAX/NOPB?
The PSRR is 50 dB at 1 kHz.
- Is the LP2998MAX/NOPB RoHS compliant?
Yes, the LP2998MAX/NOPB is lead-free and RoHS compliant.
- What package types are available for the LP2998MAX/NOPB?
The regulator is available in compact 5-pin SC70 or SOT23 packages.
