LM2991SX is Obsolete and no longer manufactured.
Available Substitutes:

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Texas Instruments
In Stock: 4.672
Unit Price: 3,44000 €
Datasheet
Linear Voltage Regulator IC Negative Adjustable 1 Output 1A TO-263 (DDPAK-5)
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Linear Voltage Regulator IC Negative Adjustable 1 Output 1A TO-263 (DDPAK-5)
What is a Voltage Regulator Another Teaching Moment | Digi-Key Electronics

LM2991SX

DigiKey Part Number
LM2991SXTR-ND - Tape & Reel (TR)
Manufacturer
Manufacturer Product Number
LM2991SX
Description
IC REG LINEAR NEG ADJ 1A TO263
Customer Reference
Detailed Description
Linear Voltage Regulator IC Negative Adjustable 1 Output 1A TO-263 (DDPAK-5)
Datasheet
 Datasheet
EDA/CAD Models
LM2991SX Models
Product Attributes
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Category
Current - Output
Mfr
Current - Quiescent (Iq)
0.7 mA
Packaging
Tape & Reel (TR)
Current - Supply (Max)
5 mA
Part Status
Obsolete
PSRR
60dB (1kHz)
Output Configuration
Control Features
Enable
Output Type
Protection Features
Over Temperature, Short Circuit
Number of Regulators
1
Operating Temperature
-40°C ~ 125°C
Voltage - Input (Max)
-26V
Mounting Type
Surface Mount
Voltage - Output (Min/Fixed)
-3V
Package / Case
TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Voltage - Output (Max)
Supplier Device Package
TO-263 (DDPAK-5)
Voltage Dropout (Max)
1V @ 1A
Base Product Number
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (1)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
LM2991SX/NOPBTexas Instruments4.672LM2991SX/NOPBCT-ND3,44000 €Direct
Obsolete
This product is no longer manufactured. View Substitutes or Alternative Package Types