Overview
The LP2951ACD-3.0R2 is a low-dropout (LDO) linear voltage regulator produced by onsemi. This device is part of the LP2951 series, which is designed to maintain proper regulation with an extremely low input-to-output voltage differential. The LP2951ACD-3.0R2 is specifically configured to provide a fixed output voltage of 3.0V and is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package. It is suitable for applications where low quiescent current and high accuracy are required, making it ideal for battery-powered devices and other low-power systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 3.0 | V |
| Output Current | 100 mA | - |
| Input Voltage Range | 4.0 to 30 V | - |
| Quiescent Current | 75 μA | - |
| Dropout Voltage | 50 mV @ 100 μA, 380 mV @ 100 mA | - |
| Line Regulation | Tight line regulation | - |
| Load Regulation | Tight load regulation | - |
| Operating Temperature Range | -40°C to +125°C | - |
| Package Type | 8-pin SOIC | - |
| Special Features | Error Output, Shutdown input, Programmable output voltage | - |
Key Features
- Low Quiescent Bias Current: The LP2951ACD-3.0R2 features a very low quiescent bias current of 75 μA, which is beneficial for extending battery life in portable devices.
- Low Input-to-Output Voltage Differential: This regulator maintains proper regulation with an extremely low input-to-output voltage differential, making it efficient for low-power applications.
- Tight Line and Load Regulation: The device offers tight line and load regulation, ensuring stable output voltage across various operating conditions.
- Error Output and Shutdown Input: The LP2951ACD-3.0R2 includes an Error Output that can signal external circuitry of an out-of-regulation condition or serve as a microprocessor power-on reset. It also features a Shutdown input for turning the regulator on or off with a logic level signal.
- Programmable Output Voltage: Although the LP2951ACD-3.0R2 is fixed at 3.0V, other versions of the LP2951 series can be programmed from 1.25V to 29V using a resistor divider and access to the Error Amplifier feedback input.
- Internal Protection: The regulator includes internal current and thermal limiting protection to ensure safe operation.
Applications
The LP2951ACD-3.0R2 is ideally suited for a variety of applications, including:
- Battery-Powered Devices: Its low quiescent current and low dropout voltage make it perfect for extending the useful life of batteries in portable electronics.
- Consumer Electronics: It is used in various consumer devices where low power consumption and high accuracy are required.
- Industrial Equipment: The regulator's robust features and wide operating temperature range make it suitable for industrial applications.
- Computer Systems: It can be used in computer systems, especially in power supply modules where low noise and high stability are necessary.
Q & A
- What is the output voltage of the LP2951ACD-3.0R2?
The output voltage of the LP2951ACD-3.0R2 is 3.0V.
- What is the maximum output current of the LP2951ACD-3.0R2?
The maximum output current is 100 mA.
- What is the quiescent current of the LP2951ACD-3.0R2?
The quiescent current is 75 μA.
- What is the input voltage range for the LP2951ACD-3.0R2?
The input voltage range is from 4.0V to 30V.
- Does the LP2951ACD-3.0R2 have internal protection features?
Yes, it includes internal current and thermal limiting protection.
- What is the operating temperature range of the LP2951ACD-3.0R2?
The operating temperature range is -40°C to +125°C.
- What package type is the LP2951ACD-3.0R2 available in?
The device is packaged in an 8-pin SOIC.
- Can the output voltage of the LP2951ACD-3.0R2 be programmed?
No, the LP2951ACD-3.0R2 has a fixed output voltage of 3.0V, but other versions of the LP2951 series can be programmed.
- What are the special features of the LP2951ACD-3.0R2?
The device features an Error Output, a Shutdown input, and tight line and load regulation.
- Is the LP2951ACD-3.0R2 suitable for battery-powered devices?
Yes, it is highly suitable due to its low quiescent current and low dropout voltage.
