Manufacturer Part Number
LM4128BMFX-2.5
Manufacturer
Texas Instruments
Introduction
Precision voltage reference IC for power management applications
Product Features and Performance
Precision series voltage reference
Fixed 2.5V output voltage
Stable 20 mA output current capability
Low temperature coefficient (75ppm/°C)
Low noise specification (275µVp-p for 0.1Hz to 10Hz)
Wide input voltage range (2.9V to 5.5V)
Low supply current (100µA)
Product Advantages
High accuracy with ±0.2% tolerance
Suitable for wide operating temperature range (-40°C to 125°C)
Supports surface mount technology with small SOT-23-5 package
Key Technical Parameters
Voltage Reference Type: Series
Voltage - Output (Min/Fixed): 2.5V
Current - Output: 20mA
Tolerance: ±0.2%
Temperature Coefficient: 75ppm/°C
Noise - 0.1Hz to 10Hz: 275µVp-p
Voltage - Input: 2.9V ~ 5.5V
Current - Supply: 100µA
Operating Temperature Range: -40°C to 125°C
Quality and Safety Features
Built with Texas Instruments' reliability and quality standards
Compatibility
Compatible with surface mount technology
SC-74A, SOT-753 package compatible with SOT-23-5 standard
Application Areas
Power supplies
Data acquisition systems
Portable and battery-powered equipment
Precision instrumentation
Product Lifecycle
Obsolete product
Potential need to find replacements or upgrades
Several Key Reasons to Choose This Product
High accuracy and reliability for critical applications
Low power consumption suitable for portable devices
Wide operating temperature range for harsh environments
Low noise output for sensitive electronics
Simple drop-in replacement due to standardized SOT-23-5 package
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