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LM2991SX The Texas Instruments LM2991SX is a negative adjustable low-dropout voltage regulator designed for efficient power management. It offers up to 1A of output current.
Mfr Part #:

LM2991SX

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LM2991SX is a negative adjustable low-dropout voltage regulator designed for efficient power management. It offers up to 1A of output current.
✓ Total Stock: 1,702 pcs
$ Price Range: $0.28

LM2991SX Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Xingangxin ✓
Non-Authorised Inventory information
1,556 pcs
On Request
1556 pcs On Request 1 On Request On Request On Request On Request On Request
Bristol Electronics ✓
Non-Authorised Inventory information
96 pcs
On Request
96 pcs On Request 1 On Request On Request On Request On Request On Request
Hybrid Electronics ✓
Non-Authorised Inventory information
50 pcs
On Request
50 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

LM2991SX Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Current
Mounting Type
Number of Regulators
Operating Temperature
Output Configuration
Output Current
Output Type
Output Voltage
PSRR
Protection Features
Storage Temperature
Supplier Device Package
Supplier Package
Voltage
Voltage Dropout (Max)
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LM2991SX Description

Short technical summary and product information.

The LM2991SX from Texas Instruments is a versatile negative adjustable low-dropout (LDO) voltage regulator. It provides an output current capability of up to 1 Ampere, making it suitable for various power supply applications.

 

The regulator features an adjustable output voltage range from -3V to -24V, with a typical dropout voltage of 0.6V at a 1A load. It operates within a temperature range of -40°C to 125°C and includes protection features such as over-temperature and short-circuit protection. The device also incorporates an ON/OFF pin for remote shutdown capability.

 

Designed for surface mounting, the LM2991SX is supplied in a DDPAK/TO-263-5 package. Its low quiescent current and low temperature coefficient contribute to its efficiency and precision in demanding applications.

LM2991SX Quick Information

Product Type: Voltage Regulator
Series: LM2991
Canonical Name: LM2991SX Negative Adjustable Low-Dropout Voltage Regulator
Subcategory: Low-Dropout (LDO) Regulator

LM2991SX Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LM2991SX Estimated Pricing

Qty Low High
1+ $0.28 $0.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

LM2991SX Features

  • Negative adjustable low-dropout regulator
  • Up to 1A output current capability
  • Adjustable output from -3V to -24V
  • Low dropout voltage of 0.6V typical
  • Surface mount DDPAK/TO-263-5 package

LM2991SX Applications

  • Power management circuits
  • Negative voltage regulation needs
  • Systems requiring adjustable output
  • Applications with current up to 1A

LM2991SX FAQs

6 frequently asked questions generated from this part’s specifications.
What is the output voltage range for the LM2991SX?

The output voltage is adjustable from -3 V to -24 V.

What is the maximum output current for the LM2991SX?

The LM2991SX can provide an output current in excess of 1 A.

What is the typical dropout voltage of the LM2991SX at a 1A load?

The typical dropout voltage is 0.6 V at a 1A load.

What is the operating temperature range for the LM2991SX?

The operating temperature range is -40°C to 125°C.

What type of package is the LM2991SX supplied in?

The LM2991SX is supplied in a DDPAK/TO-263-5 package.

Does the LM2991SX have protection features?

Yes, it includes over-temperature and short-circuit protection.

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