Overview
The LP2951ACDMR2G is a micropower low dropout (LDO) linear voltage regulator produced by onsemi. This device is designed to maintain proper regulation with an extremely low input-to-output voltage differential. It features a very low quiescent bias current of 75 µA and can supply output currents in excess of 100 mA. The LP2951ACDMR2G includes internal current and thermal limiting protection, making it suitable for battery-powered equipment where extending battery life is crucial.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Current | Up to 100 mA | mA |
| Quiescent Bias Current | 75 µA | µA |
| Input Voltage Range | Up to 30 V | V |
| Output Voltage Range | 1.25 V to 29 V (programmable), 3.0 V, 3.3 V, 5.0 V (preset) | V |
| Dropout Voltage | 50 mV at 100 mA, 380 mV at 100 mA | mV |
| Line Regulation | 0.04% to 0.10% | % |
| Load Regulation | 0.05% to 0.10% | % |
| Operating Ambient Temperature Range | -40°C to +125°C | °C |
| Package Type | MSOP-8 |
Key Features
- Error Output: Signals an out of regulation condition or can be used as a microprocessor power-on reset.
- Output Programmable: From 1.25 V to 29 V using a resistor divider and access to the Error Amplifier feedback input.
- Logic Level Shutdown Input: Allows turning the regulator output on or off with a logic level signal.
- Low Quiescent Bias Current: 75 µA.
- Low Dropout Voltage: 50 mV at 100 mA and 380 mV at 100 mA.
- Internal Current and Thermal Limiting Protection.
- Extremely Tight Line and Load Regulation.
- Requires Only a 1.0 µF Output Capacitor for Stability.
Applications
- Battery-powered computer equipment.
- Consumer electronics.
- Industrial equipment.
- Automotive applications.
- Avionics, such as RADAR systems.
- AC Analog Input Modules.
- Logistics Robot CPU Boards.
- Optical Line Cards.
Q & A
- What is the maximum output current of the LP2951ACDMR2G?
The LP2951ACDMR2G can supply output currents in excess of 100 mA.
- What is the quiescent bias current of the LP2951ACDMR2G?
The quiescent bias current is 75 µA.
- What is the input voltage range for the LP2951ACDMR2G?
The input voltage range is up to 30 V.
- Can the output voltage of the LP2951ACDMR2G be programmed?
- What are the preset output voltage options for the LP2951ACDMR2G?
The preset output voltage options are 3.0 V, 3.3 V, and 5.0 V.
- Does the LP2951ACDMR2G have internal protection features?
- What is the operating ambient temperature range for the LP2951ACDMR2G?
The operating ambient temperature range is -40°C to +125°C.
- What package type is the LP2951ACDMR2G available in?
The LP2951ACDMR2G is available in the MSOP-8 package.
- What is the purpose of the Error Output feature in the LP2951ACDMR2G?
The Error Output can signal an out of regulation condition or be used as a microprocessor power-on reset.
- How does the Shutdown input work on the LP2951ACDMR2G?
The Shutdown input allows turning the regulator output on or off with a logic level signal.
