Overview
The LP2950CZ-3.3G 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.
The LP2950CZ-3.3G is specifically configured to provide a fixed output voltage of 3.3V with a tight tolerance of ±1.0%. It features a low quiescent bias current and internal current and thermal limiting protection, making it suitable for a wide range of applications.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (3.3V Version) | VO | 3.267 | 3.300 | 3.333 | V |
| Output Voltage Tolerance (TA = 25°C) | - | - | ±1.0% | - | % |
| Input Voltage Range | Vin | 4.3 | - | 30 | V |
| Output Current | IO | - | - | 100 | mA |
| Quiescent Bias Current | ICC | 93 | - | 120 | μA |
| 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: 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: Ensures stable output voltage across various input and load conditions.
- Internal Current and Thermal Limiting Protection: Protects the device from overcurrent and overheating conditions.
- Low Output Noise: Suitable for noise-sensitive applications with output noise voltage as low as 126 μVrms (CL = 1.0 μF).
- Simple Stability Requirements: Requires only a 1.0 μF output capacitor for stability.
- Shutdown Feature (LP2951): Allows a logic level signal to turn-off or turn-on the regulator output (not applicable to LP2950CZ-3.3G).
Applications
- Battery-Powered Devices: Ideal for extending the useful battery life in portable electronics.
- Consumer Electronics: Suitable for use in consumer devices where low power consumption and stable voltage regulation are essential.
- Industrial Equipment: Used in industrial applications requiring reliable and efficient voltage regulation.
- Computer Systems: Can be used in various computer systems and peripherals where low dropout voltage is necessary.
Q & A
- What is the output voltage of the LP2950CZ-3.3G?
The output voltage of the LP2950CZ-3.3G is 3.3V with a tolerance of ±1.0%.
- What is the quiescent bias current of the LP2950CZ-3.3G?
The quiescent bias current is 75 μA.
- What is the maximum output current of the LP2950CZ-3.3G?
The maximum output current is 100 mA.
- What is the input voltage range for the LP2950CZ-3.3G?
The input voltage range is from 4.3V to 30V.
- Does the LP2950CZ-3.3G have internal protection features?
- What is the operating ambient temperature range for the LP2950CZ-3.3G?
The operating ambient temperature range is from -40°C to +125°C.
- What type of packages is the LP2950 available in?
The LP2950 is available in three-pin TO-92 and DPAK packages.
- Is the LP2950CZ-3.3G suitable for noise-sensitive applications?
- What is the storage temperature range for the LP2950CZ-3.3G?
The storage temperature range is from -65°C to +150°C.
- Does the LP2950CZ-3.3G require a complex setup for stability?
