Overview
The LP2950ACDT-3.3RK 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 LP2950ACDT-3.3RK is specifically configured to provide a fixed output voltage of 3.3V with a tight tolerance of ±0.5%. 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
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (3.3V Version) | 3.267 | 3.300 | 3.333 | V |
| Output Voltage Tolerance (TA = -40 to +125°C) | 3.234 | - | 3.366 | V |
| Quiescent Bias Current (IO = 100 μA) | - | 75 | 120 | μA |
| Quiescent Bias Current (IO = 100 mA) | - | - | 12 | mA |
| Dropout Voltage (IO = 100 μA) | - | - | 80 | mV |
| Dropout Voltage (IO = 100 mA) | - | - | 450 | mV |
| Load Regulation (IO = 100 μA to 100 mA) | - | - | 0.20 | % |
| Operating Ambient Temperature Range | -40 | - | 125 | °C |
| Maximum Die Junction Temperature | - | - | 150 | °C |
| Storage Temperature Range | -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
- Fixed Output Voltage of 3.3V with ±0.5% Tolerance
- 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 Logic Level Control of Regulator Output
- Available in DPAK Package
Applications
The LP2950ACDT-3.3RK is ideally suited for battery-powered devices, including:
- Computer and consumer electronics
- Industrial equipment where low power consumption is critical
- Devices requiring extended battery life
Q & A
- What is the output voltage of the LP2950ACDT-3.3RK?
The output voltage is 3.3V with a tolerance of ±0.5%.
- What is the quiescent bias current of the LP2950ACDT-3.3RK?
The quiescent bias current is 75 μA.
- What is the dropout voltage at 100 mA output current?
The dropout voltage at 100 mA output current is up to 450 mV.
- Does the LP2950ACDT-3.3RK have internal protection features?
- What is the operating ambient temperature range of the LP2950ACDT-3.3RK?
The operating ambient temperature range is -40°C to +125°C.
- What type of package is the LP2950ACDT-3.3RK available in?
The device is available in a DPAK package.
- Can the output voltage be adjusted?
No, the LP2950ACDT-3.3RK has a fixed output voltage of 3.3V.
- Is there a shutdown feature available on the LP2950ACDT-3.3RK?
- What is the recommended output capacitor for stability?
A 1.0 μF output capacitor is recommended for stability.
- What are the typical applications for the LP2950ACDT-3.3RK?
The device is typically used in battery-powered computer, consumer, and industrial equipment.
