Overview
The LP2951ACDM-3.3RG is a micropower voltage regulator produced by onsemi, designed to provide high performance and low power consumption. This device is part of the LP2951 series, which is known for its extremely low input-to-output voltage differential and low quiescent bias current. The LP2951ACDM-3.3RG is specifically configured to deliver a fixed output voltage of 3.3V with tight line and load regulation, making it ideal for battery-powered devices and applications where extended battery life is crucial.
Key Specifications
| Characteristic | Symbol | Min | Max | Unit | |
|---|---|---|---|---|---|
| Output Voltage (3.3 V Version) | VO | 3.260 | 3.300 | 3.340 | V |
| Input Voltage Range | Vin | 4.3 | - | 30 | V |
| Output Current | IO | - | - | 100 | mA |
| Dropout Voltage (IO = 100 mA) | VI - VO | 350 | - | 450 | mV |
| Quiescent Bias Current (IO = 100 mA) | ICC | 4.0 | - | 12 | mA |
| Operating Ambient Temperature Range | TA | -40 | - | 125 | °C |
| Maximum Die Junction Temperature | TJ | - | - | 150 | °C |
| Thermal Resistance, Junction-to-Ambient | RθJA | - | - | 240 | °C/W |
Key Features
- Low Quiescent Bias Current: 75 µA, ensuring low power consumption and extended battery life.
- Low Input-to-Output Voltage Differential: 50 mV at 100 µA and 380 mV at 100 mA, enhancing efficiency.
- Tight Line and Load Regulation: Maintains stable output voltage across a range of input voltages and load currents.
- Internal Current and Thermal Limiting: Protects the device from overcurrent and overheating conditions.
- Error Output: Signals an out-of-regulation condition, useful for microprocessor power-on reset or external circuitry notification.
- Programmable Output Voltage: Can be set from 1.25 V to 29 V using a resistor divider and feedback input.
- Logic Level Shutdown Input: Allows the regulator output to be turned on or off using a logic level signal.
- Pb-Free and RoHS Compliant: Ensures environmental compliance and safety.
- AEC-Q100 Qualified and PPAP Capable: Suitable for automotive and other applications requiring stringent quality standards.
Applications
- Battery-Powered Devices: Ideal for extending battery life in portable electronics, such as laptops, smartphones, and other handheld devices.
- Consumer Electronics: Suitable for use in various consumer electronic devices where low power consumption and stable voltage regulation are critical.
- Industrial Equipment: Used in industrial control systems, sensors, and other equipment requiring reliable and efficient voltage regulation.
- Automotive Systems: Qualified for automotive applications due to its AEC-Q100 certification and PPAP capability.
Q & A
- What is the typical output voltage of the LP2951ACDM-3.3RG?
The typical output voltage is 3.3 V, with a tolerance of ±0.5% for the 'A' suffix devices.
- What is the maximum output current of the LP2951ACDM-3.3RG?
The maximum output current is 100 mA.
- What is the quiescent bias current of the LP2951ACDM-3.3RG?
The quiescent bias current is 75 µA.
- Does the LP2951ACDM-3.3RG have internal protection features?
Yes, it includes internal current and thermal limiting protection.
- Can the output voltage of the LP2951ACDM-3.3RG be programmed?
Yes, the output voltage can be programmed from 1.25 V to 29 V using a resistor divider and feedback input.
- What is the operating ambient temperature range of the LP2951ACDM-3.3RG?
The operating ambient temperature range is -40°C to +125°C.
- Is the LP2951ACDM-3.3RG Pb-Free and RoHS Compliant?
Yes, it is Pb-Free and RoHS Compliant.
- What is the purpose of the Error Output feature in the LP2951ACDM-3.3RG?
The Error Output signals an out-of-regulation condition and can be used as a microprocessor power-on reset or to notify external circuitry.
- How does the Logic Level Shutdown Input work on the LP2951ACDM-3.3RG?
The Logic Level Shutdown Input allows the regulator output to be turned on or off using a logic level signal.
- Is the LP2951ACDM-3.3RG suitable for automotive applications?
Yes, it is AEC-Q100 Qualified and PPAP Capable, making it suitable for automotive and other stringent applications.
