Overview
The LP2950ACZ-3.0RAG is a micropower voltage regulator produced by onsemi. It is designed to maintain proper regulation with an extremely low input-to-output voltage differential, making it ideal for battery-powered devices where extending battery life is crucial. This regulator features a very low quiescent bias current and is capable of supplying output currents in excess of 100 mA. It is available in a three-pin TO-92 package and operates over a wide temperature range of -40°C to +125°C.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (3.0 V Version) | VO | 2.970 | 3.000 | 3.030 | V |
| Output Voltage Tolerance (A Suffix) | ±0.5% | % | |||
| Quiescent Bias Current | ICC | 75 | 120 | μA | |
| Input-to-Output Voltage Differential | 50 | 380 | mV | ||
| Dropout Voltage (IO = 100 mA) | VI - VO | 350 | 450 | mV | |
| Operating Ambient Temperature Range | TA | -40 | 125 | °C | |
| Maximum Die Junction Temperature | TJ | 150 | °C | ||
| Storage Temperature Range | Tstg | -65 | 150 | °C |
Key Features
- Low Quiescent Bias Current of 75 μA
- Low Input-to-Output Voltage Differential of 50 mV at 100 μA and 380 mV at 100 mA
- Extremely Tight Line and Load Regulation
- Requires Only a 1.0 μF Output Capacitor for Stability
- Internal Current and Thermal Limiting Protection
- Shutdown Input (for LP2951, not applicable to LP2950)
- Error Output (for LP2951, not applicable to LP2950)
- Programmable Output Voltage from 1.25 V to 29 V (for LP2951, not applicable to LP2950)
Applications
The LP2950ACZ-3.0RAG is ideally suited for battery-powered computer, consumer, and industrial equipment where extending the useful battery life is desirable. It is also suitable for applications requiring low power consumption and high efficiency.
Q & A
- What is the output voltage of the LP2950ACZ-3.0RAG? The output voltage is 3.0 V with a tolerance of ±0.5% for 'A' suffix devices.
- What is the quiescent bias current of the LP2950ACZ-3.0RAG? The quiescent bias current is 75 μA.
- What is the input-to-output voltage differential of the LP2950ACZ-3.0RAG? The input-to-output voltage differential is 50 mV at 100 μA and 380 mV at 100 mA.
- Does the LP2950ACZ-3.0RAG have internal protection features? Yes, it has internal current and thermal limiting protection.
- What is the operating temperature range of the LP2950ACZ-3.0RAG? The operating ambient temperature range is -40°C to +125°C.
- What type of package is the LP2950ACZ-3.0RAG available in? It is available in a three-pin TO-92 package.
- Does the LP2950ACZ-3.0RAG have a shutdown feature? No, the shutdown feature is available in the LP2951, not the LP2950.
- Can the output voltage of the LP2950ACZ-3.0RAG be programmed? No, the LP2950 does not have a programmable output voltage feature; this is available in the LP2951.
- What is the maximum output current of the LP2950ACZ-3.0RAG? The maximum output current is in excess of 100 mA.
- What is the recommended output capacitor for stability? A 1.0 μF output capacitor is recommended for stability.
