Manufacturer Part Number
LM2991SX
Manufacturer
Texas Instruments
Introduction
The LM2991SX is a negative output adjustable Low Drop Out (LDO) regulator designed primarily for power management applications.
Product Features and Performance
Negative output configuration
Adjustable output voltage range from -3V to -24V
Maximum voltage dropout of 1V at 1A load
Output current capability of up to 1A
Power Supply Rejection Ratio (PSRR) of 60dB at 1kHz
Features enable control
Protection against over temperature and short circuit conditions
Product Advantages
Capable of handling up to -26V input voltage smoothly
Low quiescent current of 0.7 mA enhances power efficiency
Supports surface mount technology for compact PCB design
Key Technical Parameters
Voltage - Input (Max): -26V
Voltage - Output (Min/Fixed): -3V
Voltage - Output (Max): -24V
Voltage Dropout (Max): 1V @ 1A
Current - Output: 1A
Current - Quiescent (Iq): 0.7 mA
Current - Supply (Max): 5 mA
PSRR: 60dB (1kHz)
Quality and Safety Features
Operates within the temperature range of -40°C to 125°C
Incorporated over temperature protection
Short Circuit protection mechanism
Compatibility
Packaging compatible for Tape & Reel (TR)
Mounting Type: Surface Mount
Package / Case: TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Application Areas
Suitable for various power management applications requiring a negative voltage output
Ideal for use in telecommunication, automotive, and industrial equipment
Product Lifecycle
Product Status: Last Time Buy
Clients are advised to consider future needs as replacements or upgrades may not be available
Several Key Reasons to Choose This Product
Handles high input voltage up to -26V
Low dropout maximizes efficiency
Highly suitable for applications requiring a compact and efficient negative voltage regulator
Robust thermal and circuit protection features enhance reliability
Extended operating temperature range suitable for harsh environments