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LP2951CD
dropout regulator IC
LP2951CD
dropout regulator IC
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
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LP2951CD DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
One of the standout features of the LP2951CD is its low dropout voltage, thermal shutdown protection, and current limit protection, which guarantee consistent and reliable performance even in challenging conditions. Additionally, the shutdown pin allows for easy transition into a low-power standby mode when the regulator is not in use, saving energy and prolonging battery life
Key Features
- Low Quiescent Bias Current of 75 μA
- Low Input−to−Output Voltage Differential of 50 mV at 100 A and 380 mV at 100 mA
- 5.0 V, 3.3 V or 3.0 V ±0.5% Allows Use as a Regulator or Reference
- Extremely Tight Line and Load Regulation
- Requires Only a 1.0 μF Output Capacitor for Stability
- Internal Current and Thermal Limiting
- NCV Prefix for Automotive and Other Applications Requiring
- Unique Site and Control Change Requirements; AEC−Q100
- Qualified and PPAP Capable
- These Devices are Pb−Free and RoHS Compliant
- LP2951 Additional Features
- Error Output Signals an Out of Regulation Condition
- Output Programmable from 1.25 V to 29 V
- Logic Level Shutdown Input
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Manufacturer | onsemi | Product Category ! | Linear Voltage Regulators |
| Mfr | onsemi | Series | - |
| Package | Tube | Product-Status | Obsolete |
| Output-Configuration | Positive | Output-Type | Adjustable (Fixed) |
| Number-of-Regulators | 1．235V (5V) | Voltage-Input-Max | 100mA |
| Voltage-Output-Min-Fixed | - | Voltage-Output-Max | - |
| Voltage-Dropout-Max | Over Current Over Temperature | Current-Output | 8-SOIC (0．154" 3．90mm Width) |
Specification Comparison
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is LP2951CD?
The LP2951CD is a low-dropout voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage even when the input voltage is close to the output voltage, making it ideal for applications requiring low noise and low power consumption.
How Does LP2951CD Work?
The LP2951CD operates as a low-dropout voltage regulator that maintains a constant output voltage regardless of variations in the input voltage or load conditions. It uses a feedback mechanism to adjust the output voltage, ensuring stability and accuracy in voltage regulation. The regulator is capable of delivering a continuous output current of up to 100 mA.
How Many Pins does LP2951CD have and What are the Functions of the Pinout Configuration?
The LP2951CD comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:
- VOUT: Output voltage pin.
- ADJ: Voltage adjustment pin.
- GND: Ground pin.
- IN: Input voltage pin.
- NRST: Output enable pin.
- SENSE: SENSE and error amplifier input.
- VREF: Reference voltage pin.
- SS/TR: Soft-start, tracking, reset timing capacitor pin.
What are the Pros and Cons of LP2951CD?
Pros:
- Low Dropout Voltage: Ensures stable operation even with small voltage differentials.
- Low Noise: Provides clean and stable output voltage suitable for noise-sensitive applications.
- Low Quiescent Current: Consumes minimal power in standby mode.
- Short Circuit Protection: Includes built-in protection against short circuits.
- Wide Input Voltage Range: Supports a wide range of input voltages for versatile applications.
Cons:
- Output Current Limitation: Limited to a maximum continuous output current of 100 mA.
- Thermal Considerations: Requires thermal management for high power dissipation applications.
Are There Any Equivalents/Alternatives to LP2951CD for Recommendation?
- The LM2937 from Texas Instruments is a comparable low-dropout voltage regulator.
- Alternatives to the LP2951CD include the LM1117 from Texas Instruments and the LT1763 from Analog Devices.
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