Overview
The LP2951ACDMR2 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 LP2951 series, which features a very low quiescent bias current of 75 µA and is capable of supplying output currents in excess of 100 mA. The LP2951ACDMR2 is particularly suited for battery-powered computer, consumer, and industrial equipment where extending the useful battery life is desirable.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 5.0 V or Adjustable (1.25 V to 29 V) | V |
| Output Current | Up to 100 mA | mA |
| Quiescent Bias Current | 75 µA | µA |
| Input-to-Output Voltage Differential | 50 mV at 100 µA, 380 mV at 100 mA | mV |
| Operating Ambient Temperature Range | -40°C to +125°C | °C |
| Package Type | Micro8 Surface Mount | - |
| Output Voltage Tolerance | ±0.5% (for 'A' suffix devices) | % |
| Internal Protection | Current and Thermal Limiting | - |
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
- Output Voltage Options: 5.0 V, 3.3 V, 3.0 V, or Adjustable from 1.25 V to 29 V
- Extremely Tight Line and Load Regulation
- Requires Only a 1.0 µF Output Capacitor for Stability
- Internal Current and Thermal Limiting Protection
- Error Output to Signal Out of Regulation Condition or as Microprocessor Power-On Reset
- Shutdown Input for Logic Level Control of Regulator Output
- Pb-Free Packages Available
Applications
The LP2951ACDMR2 is ideally suited for battery-powered devices, including computers, consumer electronics, and industrial equipment. Its low quiescent bias current and low input-to-output voltage differential make it particularly useful for applications where extending battery life is crucial.
- Battery-Powered Computers
- Consumer Electronics
- Industrial Equipment
Q & A
- What is the maximum output current of the LP2951ACDMR2?
The LP2951ACDMR2 can supply output currents in excess of 100 mA.
- What is the quiescent bias current of the LP2951ACDMR2?
The quiescent bias current is 75 µA.
- What are the available output voltage options for the LP2951ACDMR2?
The output voltage can be preset to 5.0 V, 3.3 V, or 3.0 V, or programmed from 1.25 V to 29 V.
- What type of protection does the LP2951ACDMR2 have?
The device features internal current and thermal limiting protection.
- What is the operating ambient temperature range of the LP2951ACDMR2?
The operating ambient temperature range is -40°C to +125°C.
- What package type is the LP2951ACDMR2 available in?
The LP2951ACDMR2 is available in the Micro8 surface mount package.
- Does the LP2951ACDMR2 have an error output feature?
Yes, the LP2951ACDMR2 has an error output that can signal an out of regulation condition or serve as a microprocessor power-on reset.
- Can the LP2951ACDMR2 be shut down using a logic level signal?
Yes, the LP2951ACDMR2 has a shutdown input that allows a logic level signal to turn off or turn on the regulator output.
- Is the LP2951ACDMR2 available in Pb-free packages?
Yes, Pb-free packages are available for the LP2951ACDMR2.
- What is the recommended output capacitor for stability?
A 1.0 µF output capacitor is recommended for stability.
