LP2951ACD

Name: LP2951ACD
Rating: 4.5 (10 reviews)

SOIC-8 package LDO regulator with 0.45V dropout, adjustable/fixed positive output voltage

3,861 Effective Inventory

LP2951ACD

Effective Inventory3,861

SOIC-8 package LDO regulator with 0.45V dropout, adjustable/fixed positive output voltage

Manufacturer Part # : LP2951ACD
Package/Case: SOIC-8
Brand: Onsemi
Product Categories : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

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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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Maintain the goods in their original condition as received.

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LP2951ACD DataSheet

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Details

The LP2951ACD is a reliable solution for applications requiring a stable 5V output voltage with minimal power loss. With its low dropout voltage and high output current capability, this voltage regulator is ideal for powering a variety of electronic devices, from handheld gadgets to industrial machinery. Its compact SOT-23 package makes it easy to incorporate into tight spaces on a PCB, offering flexibility in design and layout

Key Features

Low Quiescent Bias Current of 75 A
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 F 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.

Rohs Code	No	Part Life Cycle Code	Obsolete
Part Package Code	SOIC	Pin Count !	8
Reach Compliance Code	not_compliant	ECCN Code	EAR99
HTS Code !	8542.39.00.01	Adjustability	FIXED/ADJUSTABLE
Dropout Voltage1-Max	0.45 V	Dropout Voltage1-Nom	0.35 V
Input Voltage Absolute-Max	30 V	JESD-30 Code	R-PDSO-G8
JESD-609 Code	e0	Length	4.9 mm
Line Regulation-Max	0.005%	Load Regulation-Max	0.005%
Number of Functions	1	Number of Outputs	1
Number of Terminals	8	Operating Temperature TJ-Max	150 °C
Output Current1-Max	0.1 A	Output Voltage1-Max	29 V
Output Voltage1-Min	1.25 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	RAIL
Peak Reflow Temperature (Cel)	235	Qualification Status !	Not Qualified
Regulator Type	FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR	Seated Height-Max	1.75 mm
Surface Mount !	YES	Technology	BIPOLAR
Terminal Finish	TIN LEAD	Terminal Form !	GULL WING
Terminal Pitch !	1.27 mm	Terminal Position	DUAL
Voltage Tolerance-Max	1.5%	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 LP2951ACD PDF Download

FAQs

What is LP2951ACD?

The LP2951ACD is a low power, micropower voltage regulator designed by Texas Instruments. It is ideal for applications requiring a stable and reliable power supply, such as battery-powered devices, industrial instruments, and consumer electronics.

How Does LP2951ACD Work?

The LP2951ACD works by regulating an input voltage to a stable output voltage with low dropout and low quiescent current. It incorporates internal current limiting, thermal shutdown, and reverse battery protection features for robust operation. The voltage regulator is suitable for low power, battery-operated applications where energy efficiency is crucial.

How Many Pins does LP2951ACD have and What are the Functions of the Pinout Configuration?

The LP2951ACD is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

VOUT: Regulated output voltage pin.
VIN: Input voltage pin.
GND: Ground pin.
EN/DIS: Enable/Disable control pin.
NC: No connect pin (unused).
FB: Feedback pin for setting the output voltage.
R1 and R2: External resistor connection for output voltage programming.

What are the Pros and Cons of LP2951ACD?

Pros:

Low Dropout: Operates with low dropout voltage, maximizing efficiency.
Low Quiescent Current: Consumes minimal current, suitable for battery-powered devices.
Reverse Battery Protection: Provides protection against reverse battery installation.
Stable Output: Delivers stable and precise output voltage for sensitive electronics.
Compact Package: The 8-pin SOIC package is space-efficient, suitable for compact designs.

Cons:

Output Current Limit: May have a limited maximum output current compared to higher power regulators.
External Components: May require external capacitors for stability and noise reduction in certain applications.
Temperature Considerations: Performance may be affected at extreme temperatures without proper thermal management.

Are There Any Equivalents/Alternatives to LP2951ACD for Recommendation?

The LM2931 from Texas Instruments is a similar low power voltage regulator with slightly different features.
Alternatives to the LP2951ACD include the MAX8881 from Maxim Integrated and the MCP1700 from Microchip Technology.

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LP2951ACD

LP2951ACD

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