Overview
The LP2950ACZ-5.0G is a micropower voltage regulator produced by onsemi, designed to maintain proper regulation with an extremely low input-to-output voltage differential. This device is part of the LP2950 and LP2951 series, which are ideal for battery-powered computer, consumer, and industrial equipment where extending the useful battery life is crucial.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (5.0 V Versions) | VO | 4.950 | 5.000 | 5.050 | V |
| Output Voltage Tolerance (TA = 25°C) | 4.975 | 5.000 | 5.025 | V | |
| Output Voltage Tolerance (TA = -40 to +125°C) | 4.940 | 5.060 | V | ||
| Dropout Voltage (IO = 100 mA) | VI - VO | 350 | 450 | mV | |
| Supply Bias Current (IO = 100 mA) | ICC | 4.0 | 12 | mA | |
| Current Limit (VO Shorted to Ground) | ILimit | 220 | 300 | mA | |
| Operating Ambient Temperature Range | TA | -40 | 125 | °C | |
| Maximum Die Junction Temperature Range | TJ | 150 | °C | ||
| Storage Temperature Range | Tstg | -65 | 150 | °C |
Key Features
- Low Quiescent Bias Current: 75 µA, which helps in extending battery life in portable devices.
- Low Input-to-Output Voltage Differential: 50 mV at 100 µA and 380 mV at 100 mA, ensuring efficient voltage regulation.
- Tight Line and Load Regulation: Maintains stable output voltage across various input and load conditions.
- Internal Current and Thermal Limiting Protection: Protects the device from overcurrent and overheating.
- Shutdown Input (LP2951): Allows the regulator output to be turned on or off using a logic level signal.
- Error Output (LP2951): Can signal external circuitry of an out-of-regulation condition or serve as a microprocessor power-on reset.
- Adjustable Output Voltage (LP2951): Can be programmed from 1.25 V to 29 V using external resistors.
- Low Output Noise Voltage: Ensures minimal noise in the output voltage.
Applications
The LP2950ACZ-5.0G is ideally suited for a variety of applications, including:
- Battery-powered computer systems
- Consumer electronics where low power consumption is critical
- Industrial equipment requiring stable and efficient voltage regulation
- Portable devices where extending battery life is essential
Q & A
- What is the typical output voltage of the LP2950ACZ-5.0G?
The typical output voltage is 5.0 V.
- What is the quiescent bias current of the LP2950ACZ-5.0G?
The quiescent bias current is 75 µA.
- What is the maximum output current of the LP2950ACZ-5.0G?
The maximum output current is 100 mA.
- Does the LP2950ACZ-5.0G have internal protection features?
Yes, it has internal current and thermal limiting protection.
- What is the operating ambient temperature range of the LP2950ACZ-5.0G?
The operating ambient temperature range is -40°C to +125°C.
- Can the LP2950ACZ-5.0G be used in battery-powered devices?
Yes, it is designed to extend the useful battery life in such devices.
- What package types are available for the LP2950ACZ-5.0G?
The LP2950ACZ-5.0G is available in the TO-92 package.
- Does the LP2951 version have additional features compared to the LP2950?
Yes, the LP2951 includes features like an error output, shutdown input, and adjustable output voltage.
- How can the output voltage of the LP2951 be adjusted?
The output voltage can be adjusted using external resistors and the internal voltage divider.
- What is the storage temperature range for the LP2950ACZ-5.0G?
The storage temperature range is -65°C to +150°C.
