TPS7A4701QRGWRQ1: Texas Instruments' High-Performance Adjustable Linear Voltage Regulator

The TPS7A4701QRGWRQ1 from Texas Instruments (TI) is a premium-grade adjustable linear voltage regulator designed for demanding power management applications. As part of TI's renowned PMIC (Power Management Integrated Circuit) portfolio, this device delivers exceptional voltage regulation with advanced features that cater to industrial, automotive, and communication systems. Below we explore its technical specifications, unique advantages, and ideal use cases to help engineers optimize their power supply designs.

In-Depth Technical Specifications

Voltage and Current Performance

• Wide Input Range: 3V to 35V input voltage compatibility
• Adjustable Output: Programmable from 1.4V to 34V via external resistors
• High Current Capacity: 1A continuous output current with <0.45V dropout
• Ultra-Low Noise: 78dB PSRR at 1kHz for noise-sensitive applications

Advanced Control and Protection

• Enable Pin: Logic-controlled on/off functionality
• Thermal Protection: Auto-shutdown at 145 C junction temperature
• Current Limiting: Built-in overcurrent protection
• UVLO: Under-voltage lockout prevents unstable operation

Physical Characteristics

• Compact Package: 20-pin VQFN (5mm x 5mm) with thermal pad
• Wide Temp Range: -40 C to +145 C operation (AEC-Q100 qualified)
• Surface Mount: RoHS-compliant lead-free design

Key Advantages Over Competing Solutions

1. Superior Power Efficiency

The TPS7A4701QRGWRQ1 achieves outstanding efficiency through: - Ultra-low quiescent current (1mA typical) - Minimal dropout voltage (0.45V at full load) - Optimized thermal performance via exposed pad

2. Precision Voltage Regulation

Engineers benefit from: - 1.5% output voltage accuracy - Excellent line/load regulation (0.02%/V, 0.1%/A) - Fast transient response for dynamic loads

3. Enhanced Reliability Features

Critical for mission-critical applications: - Automotive-grade qualification - Robust ESD protection (2kV HBM) - Reverse current protection

Application Spotlight

Automotive Electronics

Ideal for: - ADAS sensor power supplies - Infotainment systems - ECU power conditioning

Industrial Systems

Perfect for: - PLC analog front-ends - Motor control circuits - Test and measurement equipment

Communication Infrastructure

Essential for: - Base station power modules - Optical network equipment - 5G small cell power management

Design Considerations

Layout Recommendations

For optimal performance: 1. Use wide PCB traces for high-current paths 2. Place input/output capacitors close to device pins 3. Maximize thermal pad connection to ground plane

Component Selection Guide

Recommended external components: - Input capacitor: 10 F ceramic (X7R) - Output capacitor: 22 F low-ESR type - Feedback resistors: 1% tolerance or better

Why Engineers Choose TPS7A4701QRGWRQ1

This regulator stands out for its: Unmatched voltage range flexibility Military-grade reliability Space-efficient packaging Comprehensive protection features TI's world-class technical support

Purchasing Information

The TPS7A4701QRGWRQ1 is available in tape-and-reel packaging (2500 units per reel). Contact our sales team for volume pricing, evaluation modules, or custom design support. For immediate purchase, visit our online store with worldwide shipping options.

For technical documentation: - Download the official datasheet - Access evaluation module details - View application notes