LM2991S
- Mfr.Part #
- LM2991S
- Manufacturer
- Texas Instruments
- Package / Case
- TO-263-6, D2Pak (5 Leads + Tab), TO-263BA
- Datasheet
- Download
- Description
- IC REG LIN NEG ADJ 1A DDPAK
- Stock
- 14,918
- In Stock :
- 14,918
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- Manufacturer :
- Texas Instruments
- Product Category :
- Voltage Regulators - Linear
- Width :
- 8.42mm
- Current - Quiescent (Iq) :
- 0.7mA
- Terminal Position :
- Single
- Output Configuration :
- Negative
- JESD-609 Code :
- e0
- Height :
- 4.83mm
- Control Features :
- Enable
- Length :
- 10.16mm
- ECCN Code :
- EAR99
- Line Regulation-Max (%/V) :
- 0.04
- Terminal Form :
- Gull wing
- Voltage - Output (Min/Fixed) :
- -3V
- Current Rating :
- 1A
- Min Output Voltage :
- -3V
- Number of Pins :
- 5
- Mounting Type :
- Surface Mount
- Number of Regulators :
- 1
- Lifecycle Status :
- NRND (Last Updated: 4 days ago)
- Dropout Voltage :
- 600mV
- Peak Reflow Temperature (Cel) :
- 235
- Terminal Finish :
- Tin/Lead (Sn/Pb)
- Operating Temperature :
- -40°C~125°C
- REACH SVHC :
- No SVHC
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Package / Case :
- TO-263-6, D2Pak (5 Leads + Tab), TO-263BA
- Lead Free :
- Contains Lead
- Output Type :
- Adjustable
- Mount :
- Surface Mount
- Voltage Dropout (Max) :
- 1V @ 1A
- PSRR :
- 60dB (1kHz)
- Min Current Limit :
- 1.5A
- Thickness :
- 4.58mm
- Pin Count :
- 4
- Quiescent Current :
- 5mA
- Radiation Hardening :
- No
- Reference Voltage :
- -1.186V
- Max Output Voltage :
- -24V
- Packaging :
- Tube
- Base Part Number :
- LM2991
- Load Regulation-Max(%) :
- 0.4%
- Dropout Voltage1-Nom :
- 0.6V
- Output Voltage :
- -24V
- Min Input Voltage :
- -26V
- Number of Outputs :
- 1
- Protection Features :
- Over Temperature, Short Circuit
- Max Output Current :
- 1A
- Number of Functions :
- 1
- Number of Terminations :
- 5
- RoHS Status :
- Non-RoHS Compliant
- Datasheets
- LM2991S

Voltage Regulators - Linear Texas Instruments LM2991S Overview
The LM2991S from Texas Instruments is a versatile linear negative voltage regulator integrated circuit designed to provide adjustable output voltages as low as -1.25V while delivering a continuous output current of up to 1A. This highly efficient regulator, housed in a DDPAK package, offers precise regulation, making it ideal for various industrial and commercial applications.
Featuring robust construction and advanced design, the LM2991S ensures reliable performance and stable output even under varying load conditions. Its adjustable output voltage capability and high output current make it a preferred choice for demanding applications requiring precise voltage regulation in negative voltage configurations.
LM2991S Features
- Adjustable output voltage as low as -1.25V
- Output current up to 1A
- High efficiency and low dropout voltage
- Short-circuit and thermal overload protection
- Wide input voltage range
- Compact DDPAK package for easy mounting
- Stable operation under varying load conditions
LM2991S Applications
- Telecommunications equipment: The LM2991S is suitable for powering negative voltage circuits in telecom infrastructure such as base stations and communication networks.
- Automotive electronics: It can be used in automotive systems for powering negative voltage components, ensuring stable operation of vehicle electronics.
- Industrial control systems: This regulator is ideal for industrial control applications where precise negative voltage regulation is required for sensors, actuators, and other equipment.
- Medical devices: The LM2991S finds application in medical instruments and devices that operate on negative voltage supplies, ensuring reliable performance and patient safety.
- Test and measurement equipment: It can be integrated into test and measurement instruments to provide accurate negative voltage references for testing electronic components and circuits.
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