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LM2991SX PMIC - Voltage Regulators - Linear by Texas Instruments
LM2991SX is a PMIC - Voltage Regulators - Linear model from Texas Instruments, presented on TrustCompo for buyers who need clear sourcing and review context before RFQ. This listing sits in the Integrated Circuits (ICs) / PMIC - Voltage Regulators - Linear product path. Known package information currently points to TO-263-6 under the Texas Instruments brand listing. IC REG LIN NEG ADJ 1A DDPAK. TrustCompo combines the available model, brand, hierarchy, and specification details around LM2991SX so buyers can move faster from review to quotation.
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Key specifications
Series
-
Min Quantity
1
Category
Integrated Circuits (ICs)Sub Category
PMIC - Voltage Regulators - LinearDescription
IC REG LIN NEG ADJ 1A DDPAK
key Attributes
-
Why request a quote
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RoHS, REACH, and lead-free documentation can be confirmed during RFQ
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Globally recognized certifications
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ISO 9001
Quality management processes for more consistent sourcing and handling.
AS9120B
Aerospace-focused distribution controls for traceability and reliability.
ISO 14001
Environmental management discipline across warehouse and operating workflows.
ESD Control
Electrostatic handling standards to help protect sensitive components.
Ordering workflow
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2
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3
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Product overview
Overview
The LM2991SX is a precision voltage reference integrated circuit (IC) manufactured by Texas Instruments. It is designed to provide a stable and accurate reference voltage for various applications, including analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other precision measurement systems.
Key Features:
-
Voltage Reference: The LM2991SX typically outputs a reference voltage of 1.2V, which is highly stable over temperature and time, making it suitable for precision applications.
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Temperature Coefficient: The device boasts a low temperature coefficient, ensuring that the output voltage remains consistent across a wide temperature range. This is crucial for applications that require high accuracy in varying environmental conditions.
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Low Noise: The LM2991SX is designed to minimize output noise, which is essential for high-precision measurements. This low noise characteristic helps improve the overall performance of the systems it is integrated into.
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Wide Supply Voltage Range: The IC can operate over a broad supply voltage range, allowing it to be used in various circuit configurations and applications.
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Compact Package: The LM2991SX is available in a small surface-mount package, which is advantageous for space-constrained designs and helps reduce the overall footprint of the circuit board.
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Ease of Use: The device is designed for straightforward integration into existing circuits, with minimal external components required for operation.
Applications:
- Precision Measurement Systems: Ideal for use in devices that require accurate voltage references for measurement and calibration.
- Data Acquisition Systems: Commonly used in ADCs and DACs to ensure that the conversion processes are based on stable reference voltages.
- Instrumentation: Suitable for various instrumentation applications where precision and stability are paramount.
- Consumer Electronics: Can be found in high-end audio equipment and other consumer devices that demand accurate signal processing.
Electrical Characteristics:
- Output Voltage: 1.2V nominal
- Output Impedance: Low output impedance for better load regulation
- Power Supply Rejection Ratio (PSRR): High PSRR, ensuring that variations in supply voltage have minimal impact on the output voltage.
Conclusion:
The LM2991SX from Texas Instruments is a robust and reliable voltage reference IC that excels in precision applications. Its combination of low noise, excellent temperature stability, and compact design makes it a preferred choice for engineers looking to enhance the accuracy and reliability of their electronic systems.
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Popular Specs Surfaced First
Product Attribute
REACH Status
REACH Unaffected
Product Attribute
ECCN
EAR99
Product Attribute
Length
10.16mm
Product Attribute
Lead Free
Contains Lead
Product Attribute
Mounting Type
Surface Mount
Product Attribute
Packaging
Tape & Reel (TR)
REACH Status
REACH Unaffected
ECCN
EAR99
Length
10.16mm
Lead Free
Contains Lead
Mounting Type
Surface Mount
Packaging
Tape & Reel (TR)
Categories
Integrated Circuits (ICs)
Terminal Form
GULL WING
Operating Temperature
-40°C~125°C
Manufacturer
Texas
Part Status
Not For New Designs
Packing Method
TR
Subcategory
Other Regulators
Sub-Categories
PMIC - Voltage Regulators - Linear
Output Type
Adjustable
Number Of Functions
1
Radiation Hardening
No
Mount
Surface Mount
Technology
BIPOLAR
Terminal Position
SINGLE
Max Output Current
1A
Number Of Outputs
1
Number Of Pins
5
Number Of Terminations
5
Pin Count
4
Peak Reflow Temperature (Cel)
235
Height
4.83mm
Quiescent Current
5mA
Thickness
4.58mm
Width
8.42mm
Package / Case
TO-263-6, D2Pak (5 Leads + Tab), TO-263BA
Lifecycle Status
NRND (Last Updated: 1 day ago)
Load Regulation-Max(%)
0.4%
Current - Quiescent (Iq)
0.7mA
Line Regulation-Max (%/V)
0.04
Min Input Voltage
-26V
Voltage - Output (Min/Fixed)
-3V
Output Voltage
-24V
Base Part Number
LM2991
Reference Voltage
-1.186V
Voltage - Output (Max)
-24V
Manufacturer'S Part No.
LM2991SX
Control Features
Enable
Terminal Finish
Tin/Lead (Sn/Pb)
Protection Features
Over Temperature, Short Circuit
Number Of Regulators
1
Output Configuration
Negative
PSRR
60dB (1kHz)
Min Current Limit
1.5A
Dropout Voltage1-Nom
0.6V
Dropout Voltage
600mV
Voltage Dropout (Max)
1V @ 1A
RoHS Status
ROHS3 Compliant
JESD-609 Code
e0
HTSUS
8542.39.0001
Moisture Sensitivity Level (MSL)
3 (168 Hours)
ECCN Code
EAR99
Common questions
Product FAQ
Quick answers for buyers reviewing LM2991SX, stock, documentation, and sourcing steps.
What is LM2991SX?
LM2991SX is a PMIC - Voltage Regulators - Linear component from Texas Instruments. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.
What package and description are listed for LM2991SX?
LM2991SX is listed with package reference TO-263-6. The current product description is IC REG LIN NEG ADJ 1A DDPAK, and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.
Is LM2991SX available in stock?
This page currently shows 31420 units in stock and 31420 units available for LM2991SX. Because electronic component availability can change quickly, submit an RFQ to confirm live stock, lead time, and final pricing.
Can I request a quote or sample for LM2991SX?
Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for LM2991SX by Texas Instruments. The TrustCompo team can review price, availability, and documentation support.
Is a datasheet available for LM2991SX?
A dedicated datasheet link is not currently listed for LM2991SX by Texas Instruments. Contact us with the part number and required parameters so the team can help confirm documentation during quotation.
How should buyers verify LM2991SX before ordering?
Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for LM2991SX before approving the order.
PMIC - Voltage Regulators - Linear
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