Overview
The LP2950CDT-3.3G is a micropower voltage regulator produced by onsemi. This device is part of the LP2950 and LP2951 series, designed to maintain proper regulation with an extremely low input-to-output voltage differential. It is particularly suited for battery-powered computer, consumer, and industrial equipment where extending the useful battery life is crucial.
The LP2950CDT-3.3G is available in the DPAK package and features a low quiescent bias current of 75 μA, making it highly efficient for low-power applications. It also includes internal current and thermal limiting protection, ensuring reliable operation under various conditions.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (3.3 V Version) | VO | 3.267 | 3.300 | 3.333 | V |
| Output Voltage Tolerance (TA = -40 to +125°C) | 3.234 | 3.366 | V | ||
| Dropout Voltage (IO = 100 mA) | VI - VO | 350 | 450 | mV | |
| Supply Bias Current (IO = 100 mA) | ICC | 4.0 | 12 | mA | |
| Line Regulation (Vin = VO(nom) + 1.0 V to 30 V) | Regline | -0.08 | 0.20 | % | |
| Load Regulation (IO = 100 μA to 100 mA) | Regload | -0.13 | 0.20 | % | |
| 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, making it suitable for battery-powered devices.
- Low Input-to-Output Voltage Differential: 50 mV at 100 μA and 380 mV at 100 mA.
- Tight Line and Load Regulation: Ensures stable output voltage across various input and load conditions.
- Internal Current and Thermal Limiting Protection: Prevents device damage due to overcurrent or overheating.
- Low Dropout Voltage: Allows for efficient operation with minimal voltage drop.
- Requires Only a 1.0 μF Output Capacitor for Stability: Simplifies the circuit design.
- Pb-Free and RoHS Compliant: Meets environmental standards.
- AEC-Q100 Qualified and PPAP Capable: Suitable for automotive and other applications requiring strict quality standards.
Applications
The LP2950CDT-3.3G is ideally suited for a variety of applications, including:
- Battery-Powered Devices: Extends battery life due to its low quiescent bias current and low dropout voltage.
- Consumer Electronics: Suitable for devices requiring stable and efficient power regulation.
- Industrial Equipment: Reliable operation in harsh environments with internal current and thermal limiting protection.
- Automotive Systems: AEC-Q100 qualified, making it suitable for automotive applications.
Q & A
- What is the typical output voltage of the LP2950CDT-3.3G?
The typical output voltage is 3.3 V, with a tolerance of ±0.5% for the 'A' suffix devices.
- What is the quiescent bias current of the LP2950CDT-3.3G?
The quiescent bias current is 75 μA.
- What is the maximum output current of the LP2950CDT-3.3G?
The device can supply output currents in excess of 100 mA.
- What type of protection does the LP2950CDT-3.3G have?
The device features internal current and thermal limiting protection.
- What is the operating ambient temperature range of the LP2950CDT-3.3G?
The operating ambient temperature range is -40°C to +125°C.
- Is the LP2950CDT-3.3G Pb-Free and RoHS Compliant?
- What type of capacitor is required for stability?
A 1.0 μF (or greater) capacitor is required between the output terminal and ground for stability).
- Can the LP2950CDT-3.3G be used in automotive applications?
- What is the maximum die junction temperature of the LP2950CDT-3.3G?
- What is the storage temperature range of the LP2950CDT-3.3G?
