TPS65721RSNR: Texas Instruments' Advanced Power Management Solution for Next-Gen Mobile Devices

The TPS65721RSNR represents Texas Instruments' commitment to innovation in power management technology. This highly integrated PMIC (Power Management Integrated Circuit) combines exceptional efficiency with compact design, making it the perfect solution for modern portable electronics. Let's explore why engineers worldwide are choosing this component for their power-sensitive applications.

In-Depth Technical Analysis

Architecture and Core Features

The TPS65721RSNR integrates two high-efficiency DC/DC converters with low-dropout regulators (LDOs) in a single 32-QFN package. This innovative architecture provides:

• Ultra-low quiescent current (typically 25 A) for extended battery life
• Switching frequencies up to 2.25MHz for reduced external component size
• Automatic power path management for seamless transition between power sources
• Integrated soft-start functionality to prevent inrush current

Performance Specifications

Parameter	Value
Input Voltage Range	2.3V to 5.6V
Output Current	Up to 1.5A per channel
Conversion Efficiency	>90% (typical)
Operating Temperature	-40 C to +85 C
Package Dimensions	4mm 4mm 0.8mm

Design Advantages

Space-Saving Integration

The 32-pin QFN package with exposed thermal pad (RSN package code) enables:

• 40% smaller solution size compared to discrete implementations
• Excellent thermal performance with JA of 32 C/W
• Wettable flank package for reliable automated optical inspection (AOI)

Advanced Power Management

Texas Instruments' proprietary power management technology includes:

• Dynamic voltage scaling for optimal power efficiency
• Load transient response <50 s for stable operation
• Comprehensive protection features (OVP, UVLO, thermal shutdown)

Application Spotlight

Ideal Use Cases

The TPS65721RSNR excels in:

• Smartphones and tablets
• Wearable health monitors
• Portable medical devices
• Industrial handheld terminals
• IoT edge devices

Reference Designs

Texas Instruments provides complete reference designs including:

• TIDA-01566: Ultra-Low Power Wearable Solution
• PMP40766: High-Efficiency Smartphone Power Architecture
• PMP15031: Industrial PDA Power System

Competitive Advantages

Compared to alternative PMICs, the TPS65721RSNR offers:

• 30% better light-load efficiency than competing solutions
• Wider input voltage range (2.3V-5.6V vs typical 2.7V-5.5V)
• Smaller footprint with fewer external components required
• Texas Instruments' industry-leading reliability (0.5 FIT rate)

Purchasing and Support

Available through authorized distributors with:

• Volume pricing starting at $1.25/unit (1k quantities)
• Evaluation modules (TPS65721EVM-742)
• Comprehensive design resources (SPICE models, layout guidelines)
• Industry-leading lead times (8-12 weeks)

Conclusion

The TPS65721RSNR sets a new standard for power management in space-constrained mobile applications. Its combination of high efficiency, advanced features, and robust protection mechanisms makes it the ideal choice for designers working on next-generation portable devices. With Texas Instruments' global support network and proven quality, this PMIC delivers reliable performance you can count on.

For design assistance or to request samples, contact our technical support team today. Explore how the TPS65721RSNR can optimize your power architecture and give your product a competitive edge in the marketplace.