LT1764AEQ-1.5#TRPBF: High-Performance 1.5V 3A Linear Voltage Regulator | Analog Devices
LT1764AEQ-1.5#TRPBF: High-Performance 1.5V 3A Linear Voltage Regulator by Analog Devices
The LT1764AEQ-1.5#TRPBF is a premium-grade linear voltage regulator IC designed by Analog Devices Inc., a global leader in power management solutions. This fixed 1.5V output regulator delivers exceptional performance with its 3A current capacity, making it ideal for demanding applications across industries. As part of Analog Devices' renowned LT1764 series, this component combines precision voltage regulation with robust protection features in a compact TO-263-6 package.
In-Depth Technical Specifications
Voltage Regulation Performance
- Input Voltage Range: Up to 20V maximum
- Fixed Output Voltage: 1.5V 2% accuracy
- Dropout Voltage: Only 0.66V at full 3A load
- Line Regulation: 0.02% typical
- Load Regulation: 0.1% typical
Efficiency and Noise Characteristics
- Power Supply Rejection Ratio (PSRR): 63dB at 120Hz
- Quiescent Current: Just 1.5mA (typical)
- Output Noise Voltage: 40 VRMS (10Hz to 100kHz)
Robust Protection Features
- Overcurrent Protection: Fold-back current limiting
- Thermal Shutdown: Automatic at 150 C (typical)
- Reverse Polarity Protection: Safeguards against installation errors
- Enable Pin: Logic-controlled shutdown (1 A standby current)
Package and Thermal Information
The LT1764AEQ-1.5#TRPBF comes in a TO-263-6 (D-PAK) surface-mount package with five leads plus tab. This package offers:
- Excellent thermal performance with JA of 40 C/W
- Copper leadframe for optimal heat dissipation
- Compact footprint (10.4mm 8.89mm)
- RoHS-compliant construction
Comprehensive Application Guide
Typical Applications
- Industrial Automation: PLCs, motor controllers, sensor networks
- Telecommunications: Base stations, network equipment
- Consumer Electronics: Set-top boxes, gaming consoles
- Automotive Systems: Infotainment, ADAS components
- Medical Devices: Portable diagnostic equipment
Design Considerations
For optimal performance with the LT1764AEQ-1.5#TRPBF:
- Input capacitors: Use 10 F ceramic or 22 F tantalum within 1cm of input pin
- Output capacitors: Minimum 10 F low-ESR capacitor required
- Thermal management: Ensure adequate PCB copper area for heat dissipation
- Layout guidelines: Keep sensitive analog circuits away from switching nodes
Comparative Advantages
When benchmarked against competing regulators, the LT1764AEQ-1.5#TRPBF offers:
| Feature | LT1764AEQ-1.5#TRPBF | Typical Competitors |
|---|---|---|
| Dropout Voltage | 0.66V @ 3A | 1.2V @ 3A |
| PSRR | 63dB | 50dB |
| Protection Features | Comprehensive | Basic |
| Operating Temp | -40 C to +125 C | -40 C to +85 C |
Purchasing and Support Information
The LT1764AEQ-1.5#TRPBF is available through authorized distributors worldwide. For design support:
- Download the complete LT1764 datasheet from Analog Devices' website
- Access LTspice simulation models for circuit validation
- Utilize Analog Devices' engineer-to-engineer support for technical queries
Conclusion
The LT1764AEQ-1.5#TRPBF represents the pinnacle of linear voltage regulator technology, combining Analog Devices' expertise in precision analog design with robust power management capabilities. Its exceptional combination of low dropout voltage, high current capacity, and comprehensive protection features makes it the ideal choice for designers requiring reliable 1.5V power distribution in space-constrained, thermally challenging applications.
For engineers developing next-generation electronic systems, the LT1764AEQ-1.5#TRPBF offers a proven solution that reduces design risk while delivering superior performance characteristics. Its industry-leading specifications and reliability metrics ensure long-term system stability across diverse operating conditions.