Overview
The LP2951ACDR2G 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, making it ideal for applications where battery life extension is crucial. The LP2951ACDR2G features a very low quiescent bias current of 75 µA and can supply output currents in excess of 100 mA. It also includes internal current and thermal limiting protection, ensuring reliable operation under various conditions.
Key Specifications
| Attribute | Value |
|---|---|
| Input Voltage-Max | 30V |
| Output Voltage Range | 1.25V to 29V |
| Output Voltage Fixed | 5V (programmable from 1.25V to 29V) |
| Dropout Voltage-Max | 450mV |
| Output Current-Max | 100mA |
| Rated Power | 0.7W |
| Tolerance (%) | 0.5% |
| Operating Temp Range | -65°C to +150°C |
| Regulator Topology | Adjustable Fixed |
| Quiescent Current | 75µA |
| No. of Outputs | Single |
| Output Noise | 126µV |
| Load Regulation (%) | 0.1% |
| Current - Limit | 300mA |
| Line Regulation (%) | 0.1% |
| Package Style | SOIC-8 |
| Mounting Method | Surface Mount |
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 Programmable 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
- Pb−Free Packages are Available
- Error (Bar) Output Signals an Out of Regulation Condition
- Logic Level Shutdown Input
Applications
- Battery Powered Computer Equipment
- Consumer Electronics
- Industrial Equipment
- Automotive Systems
- Avionics: RADAR
- AC Analog Input Module
- Logistics Robot CPU Board
- Optical Line Card
Q & A
- What is the maximum input voltage for the LP2951ACDR2G?
The maximum input voltage is 30V.
- What is the output voltage range of the LP2951ACDR2G?
The output voltage range is from 1.25V to 29V, and it can be fixed at 5V.
- What is the maximum output current of the LP2951ACDR2G?
The maximum output current is 100mA.
- What is the quiescent current of the LP2951ACDR2G?
The quiescent current is 75µA.
- Does the LP2951ACDR2G have internal protection features?
Yes, it includes internal current and thermal limiting protection.
- What package style is the LP2951ACDR2G available in?
The LP2951ACDR2G is available in an SOIC-8 package.
- What is the operating temperature range of the LP2951ACDR2G?
The operating temperature range is from -65°C to +150°C.
- Can the output voltage of the LP2951ACDR2G be programmed?
Yes, the output voltage can be programmed from 1.25V to 29V.
- Does the LP2951ACDR2G have a shutdown feature?
Yes, it has a logic level shutdown input.
- What is the error output feature of the LP2951ACDR2G used for?
The error output signals an out of regulation condition and can also be used as a microprocessor power-on reset.
