LP2951-50D

Name: LP2951-50D
Brand: Texas Instruments
Rating: 4.5 (10 reviews)
Author: Lisleapex

100-mA, 30-V, low-dropout voltage regulator with power good & enable 8-SOIC -40 to 125

5,587 Effective Inventory

LP2951-50D

Effective Inventory5,587

100-mA, 30-V, low-dropout voltage regulator with power good & enable 8-SOIC -40 to 125

Manufacturer Part # : LP2951-50D
Package/Case: SOIC-8
Brand: Texas Instruments
Product Categories : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Series : LP2951

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LP2951-50D 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!

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LP2951-50D Description

The LP2951-50D is a voltage regulator IC from Texas Instruments, designed for precise voltage regulation in low-power applications. This device offers a fixed output of 5V with low dropout voltage and low quiescent current, making it suitable for battery-powered devices, portable electronics, and small-scale circuits.

Pin Details

The LP2951-50D is a linear regulator IC with a single pin configuration. It includes pins for output voltage, input voltage, and ground connections.

Pin configuration

Output (VOUT): Fixed 5V output voltage
Input (VIN): Input voltage pin for the regulator
GND: Ground connection for the device

Features

Fixed Output Voltage: Offers a fixed output of 5V with low dropout voltage and low quiescent current.
Low Dropout Voltage: Typically 0.5V at full load, ensuring reliable operation in battery-powered devices.
Low Quiescent Current: Typically 4mA, minimizing power consumption in portable electronics and small-scale circuits.
Thermal Shutdown Protection: Automatically shuts down the device to prevent overheating and damage.

Applications

The LP2951-50D is commonly used in low-power applications such as battery-powered devices, portable electronics, and voltage regulation for small-scale circuits where precise voltage regulation is required.

Where to Use:

Battery-powered devices
Portable electronics
Small-scale circuits

Manufacturer

The LP2951-50D is manufactured by Texas Instruments (TI), a global leader in semiconductor technology. It falls under the category of linear regulators, which are designed to provide precise voltage regulation for various applications.

Packages

The LP2951-50D comes in a Small Outline Package - D0008A (SOP-8). This package is designed for surface-mount technology, offering a compact and efficient solution for integrating the regulator into electronic circuits.

FAQ

Q: What is the output voltage of the LP2951-50D?
A: It provides a fixed output voltage of 5V with low dropout voltage and low quiescent current.

Q: Can the LP2951-50D be used in battery-powered devices?
A: Yes, it is designed for use in battery-powered devices where precise voltage regulation is required.

Q: How does the LP2951-50D handle thermal stress?
A: It features thermal shutdown protection to automatically shut down the device and prevent overheating and damage.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Pbfree Code	Yes	Rohs Code	Yes
Part Life Cycle Code	Active	Part Package Code	SOIC
Pin Count !	8	Reach Compliance Code	compliant
ECCN Code	EAR99	HTS Code !	8542.39.00.01
Adjustability	FIXED	Dropout Voltage1-Max	0.6 V
Dropout Voltage1-Nom	0.38 V	Input Voltage Absolute-Max	30 V
Input Voltage-Max	30 V	Input Voltage-Min	5.7 V
JESD-30 Code	R-PDSO-G8	JESD-609 Code	e4
Length	4.9 mm	Line Regulation-Max	0.02%
Load Regulation-Max	0.015%	Moisture Sensitivity Level	1
Number of Functions	1	Number of Outputs	1
Number of Terminals	8	Operating Temperature TJ-Max	125 °C
Operating Temperature TJ-Min	-40 °C	Operating Temperature-Max	125 °C
Operating Temperature-Min	-40 °C	Output Current1-Max	0.1 A
Output Voltage1-Max	5.1 V	Output Voltage1-Min	4.9 V
Output Voltage1-Nom	5 V	Package Body Material	PLASTIC/EPOXY
Package Code	SOP	Package Equivalence Code	SOP8,.25
Package Shape	RECTANGULAR	Package Style	SMALL OUTLINE
Packing Method	TUBE	Peak Reflow Temperature (Cel)	260
Qualification Status !	Not Qualified	Regulator Type	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Seated Height-Max	1.75 mm	Surface Mount !	YES
Technology	BIPOLAR	Terminal Finish	NICKEL PALLADIUM GOLD
Terminal Form !	GULL WING	Terminal Pitch !	1.27 mm
Terminal Position	DUAL	Time@Peak Reflow Temperature-Max (s)	30
Voltage Tolerance-Max	2%	Width	3.9 mm

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.

Preliminary Specification LP2951-50D PDF Download

FAQs

What is LP2951-50D?

The LP2951-50D is a low-power voltage regulator designed by Texas Instruments. It is a precision, low-dropout regulator capable of delivering an output voltage of 5.0V with a maximum output current of 100mA. The device is ideal for applications requiring stable and regulated power supplies in portable devices, battery-powered systems, and sensor interfaces.

How Does LP2951-50D Work?

The LP2951-50D regulates the input voltage to a stable 5.0V output by utilizing an internal reference voltage and feedback control loop. It ensures that the output voltage remains constant even with variations in input voltage and load current. The low dropout voltage feature allows the regulator to deliver a stable output voltage even when the input voltage is close to the desired output voltage.

How Many Pins does LP2951-50D have and What are the Functions of the Pinout Configuration?

The LP2951-50D is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

Input: Vin, the input voltage pin.
Output: Vout, the regulated 5.0V output voltage pin.
Ground: GND, the ground pin.
Adjust: Optional pin for external voltage trimming.
ByPass: Optional pin for noise reduction using an external capacitor.

What are the Pros and Cons of LP2951-50D?

Pros:

Low Dropout Voltage: Maintains a stable output voltage even with low input voltage.
Low Quiescent Current: Operates with low power consumption, ideal for battery-operated devices.
Short Circuit Protection: Protects the regulator and the load from excessive current.
Wide Input Voltage Range: Accommodates a variety of input voltage levels.
Thermal Shutdown: Prevents the regulator from overheating under high load conditions.

Cons:

Output Current Limit: Limited to a maximum output current of 100mA, which may not be sufficient for high-power applications.
External Components: May require additional capacitors for stability and noise reduction.
Fixed Output Voltage: The LP2951-50D provides a fixed 5.0V output, limiting flexibility in output voltage selection.

Are There Any Equivalents/Alternatives to LP2951-50D for Recommendation?

The LM2937 from Texas Instruments is a similar low-dropout regulator with adjustable output voltage.
Alternatives to the LP2951-50D include the MIC5205 from Microchip Technology and the MCP1703 from Microchip Technology.