Overview
The LP2951CD-3.3R2 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 LP2950 and LP2951 series, which are ideal for battery-powered computer, consumer, and industrial equipment where extending battery life is crucial. The LP2951CD-3.3R2 offers a fixed output voltage of 3.3V and is available in an SOIC-8 package.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Output Voltage | 3.3 V ±0.5% | Vin = 4.3 to 30 V, IO = 100 µA to 100 mA, TA = -40 to +125°C |
| Output Current | Up to 100 mA | |
| Input Voltage Range | 4.3 to 30 V | |
| Quiescent Bias Current | 75 µA | |
| Input-to-Output Voltage Differential | 50 mV at 100 µA, 380 mV at 100 mA | |
| Operating Ambient Temperature Range | -40°C to +125°C | |
| Package Type | SOIC-8 | |
| Output Capacitor Requirement | 1.0 µF for stability |
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
- Extremely Tight Line and Load Regulation
- Requires Only a 1.0 µF Output Capacitor for Stability
- Internal Current and Thermal Limiting
- Error Output Signals an Out of Regulation Condition
- Output Programmable from 1.25 V to 29 V (in adjustable versions)
- Logic Level Shutdown Input
- Pb-Free Packages Available
- NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements
Applications
The LP2951CD-3.3R2 is ideally suited for battery-powered devices in various sectors, including:
- Battery-powered computer equipment
- Consumer electronics
- Industrial equipment where extended battery life is desirable
- Automotive applications (with NCV prefix)
These regulators are user-friendly, featuring internal current limiting and thermal shutdown, and require a minimal 1.0 µF output capacitor for stability.
Q & A
- What is the output voltage of the LP2951CD-3.3R2?
The output voltage is 3.3 V with a tolerance of ±0.5%.
- What is the maximum output current of the LP2951CD-3.3R2?
The maximum output current is 100 mA.
- What is the input voltage range for the LP2951CD-3.3R2?
The input voltage range is from 4.3 V to 30 V.
- What is the quiescent bias current of the LP2951CD-3.3R2?
The quiescent bias current is 75 µA.
- What type of package is the LP2951CD-3.3R2 available in?
The LP2951CD-3.3R2 is available in an SOIC-8 package.
- Does the LP2951CD-3.3R2 require an output capacitor for stability?
- What are the key features of the LP2951 series?
The key features include low quiescent bias current, low input-to-output voltage differential, tight line and load regulation, internal current and thermal limiting, error output, programmable output voltage, and logic level shutdown input.
- What are the typical applications for the LP2951CD-3.3R2?
Typical applications include battery-powered computer equipment, consumer electronics, industrial equipment, and automotive applications.
- Is the LP2951CD-3.3R2 suitable for automotive applications?
- What is the operating ambient temperature range for the LP2951CD-3.3R2?
The operating ambient temperature range is from -40°C to +125°C.
