Overview
The Texas Instruments LP2980AIM5-3.0/NOPB is a micropower, ultra-low-dropout voltage regulator designed to meet the specific requirements of battery-powered applications. This regulator is part of the LP2980 series, which is known for its high performance and efficiency in low-power designs. The LP2980AIM5-3.0/NOPB provides a fixed output voltage of 3.0V and can supply up to 50 mA of output current. It features an ultra-low dropout voltage, high output voltage accuracy, and low quiescent current, making it ideal for use in various portable electronic devices.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LP2980AIM5-3.0/NOPB |
| Package | SOT-23-5 |
| Output Voltage | 3 V |
| Maximum Output Current | 50 mA |
| Regulator Type | Low Dropout Voltage |
| Number of Outputs | 1 |
| Polarity | Positive |
| Mounting Type | Surface Mount |
| Pin Count | 5 |
| Output Type | Fixed |
| Dimensions | 2.92 x 1.6 x 1.02 mm |
| Minimum Operating Temperature | -40 °C |
| Maximum Input Voltage | 16 V |
| Maximum Operating Temperature | +125 °C |
| Minimum Input Voltage | 2.1 V |
| Line Regulation | 0.014 %/V |
| Accuracy | ±0.75% |
| Dropout Voltage | Typically 120 mV @ 50 mA load |
| Quiescent Current | < 1 μA when shutdown |
Key Features
- Ultra-Low Dropout Voltage: Typically 120 mV at 50 mA load and 7 mV at 1 mA load.
- High Output Voltage Accuracy: ±0.5% (A Grade) and ±1% over load and temperature.
- Guaranteed Output Current: Up to 50 mA.
- Low Quiescent Current: Less than 1 μA when the ON/OFF pin is pulled low.
- Low Ground Pin Current: Typically 375 μA at 50 mA load and 80 μA at 1 mA load.
- High Peak Current Capability: 150 mA typical.
- Wide Supply Voltage Range: 2.1 V to 16 V.
- Fast Dynamic Response: To line and load changes.
- Low ZOUT Over Wide Frequency Range: Ensures stable output.
- Overtemperature and Overcurrent Protection: Built-in protection mechanisms.
- Minimum External Components: Requires only 1 μF external capacitance on the regulator output.
Applications
- Cellular Phones: Ideal for battery-powered cellular phone designs.
- Palmtop/Laptop Computers: Suitable for portable computing devices.
- Personal Digital Assistants (PDAs): Used in handheld PDA devices.
- Camcorders, Personal Stereos, Cameras: Applicable in various portable audio and video devices.
Q & A
- What is the output voltage of the LP2980AIM5-3.0/NOPB?
The output voltage is fixed at 3.0 V.
- What is the maximum output current of the LP2980AIM5-3.0/NOPB?
The maximum output current is 50 mA.
- What is the typical dropout voltage of the LP2980AIM5-3.0/NOPB at 50 mA load?
The typical dropout voltage is 120 mV at 50 mA load.
- What is the quiescent current when the regulator is in shutdown mode?
The quiescent current is less than 1 μA when the ON/OFF pin is pulled low.
- What is the operating temperature range of the LP2980AIM5-3.0/NOPB?
The operating temperature range is from -40 °C to +125 °C.
- What is the minimum input voltage required for the LP2980AIM5-3.0/NOPB?
The minimum input voltage is 2.1 V.
- What type of package does the LP2980AIM5-3.0/NOPB come in?
The regulator comes in a SOT-23-5 package.
- Does the LP2980AIM5-3.0/NOPB have built-in protection mechanisms?
Yes, it has overtemperature and overcurrent protection.
- How much external capacitance is required for the regulator output?
Only 1 μF of external capacitance is required on the regulator output.
- What are some common applications of the LP2980AIM5-3.0/NOPB?
Common applications include cellular phones, palmtop/laptop computers, personal digital assistants (PDAs), and camcorders/personal stereos/cameras.
