TPS70358PWPR: High-Performance Dual Output Linear Voltage Regulator by Texas Instruments

The TPS70358PWPR represents Texas Instruments' cutting-edge solution for precision power management in modern electronic systems. This dual-output linear voltage regulator delivers exceptional performance with its advanced features, making it a top choice for engineers designing power-sensitive applications across industries.

Comprehensive Product Overview

As part of Texas Instruments' renowned power management IC (PMIC) portfolio, the TPS70358PWPR offers:

• Dual fixed-voltage outputs: 3.3V and 2.5V
• High current capability: 1A per channel (2A total)
• Ultra-low dropout voltage: Just 0.25V at full load
• Exceptional power efficiency: 250 A quiescent current

In-Depth Technical Specifications

Power Delivery Characteristics

The regulator's architecture ensures stable power delivery with:

• Input voltage range up to 6V
• Fixed 3.3V and 2.5V outputs with 2% accuracy
• 65dB PSRR at 1kHz for superior noise rejection
• Thermal resistance of 23 C/W (junction-to-ambient)

Advanced Control Features

Beyond basic regulation, the TPS70358PWPR includes:

• Independent enable controls for each output
• Power-good indicators for both channels
• Programmable power-up sequencing
• Reset functionality with adjustable delay

Enhanced Protection Mechanisms

Texas Instruments has incorporated multiple safeguards:

• Over-current protection with foldback
• Thermal shutdown at 150 C (typical)
• Reverse-current blocking
• UVLO (Under Voltage Lock Out) at 2.2V

Package and Thermal Considerations

The device comes in a space-saving 24-pin HTSSOP package with:

• Exposed thermal pad for efficient heat dissipation
• 4.4mm 7.8mm footprint
• RoHS-compliant construction
• Operating temperature range: -40 C to +125 C

Industry-Leading Applications

Telecommunications Equipment

Ideal for:

• 5G base station power subsystems
• Optical network unit (ONU) designs
• Router and switch power management

Automotive Electronics

Perfect solution for:

• Infotainment system power rails
• ADAS (Advanced Driver Assistance Systems)
• Telematics control units

Industrial Systems

Widely used in:

• PLC (Programmable Logic Controller) designs
• Industrial IoT edge devices
• Motor control circuits

Design Advantages Over Competitors

The TPS70358PWPR outperforms similar regulators through:

1. Space Efficiency: Replaces two single-channel regulators with one IC
2. Simplified PCB Layout: Integrated sequencing eliminates external logic
3. Enhanced Reliability: TI's automotive-grade manufacturing process
4. Time-to-Market Reduction: Complete solution requiring minimal external components

Design Resources and Support

Texas Instruments provides comprehensive support including:

• SPICE simulation models
• Reference design schematics
• Thermal calculation tools
• Evaluation module (EVM) availability

Purchasing Information

The TPS70358PWPR is available through authorized distributors with:

• Standard packaging: 75 units/reel
• Lead-free and RoHS-compliant options
• Standard lead time of 6-8 weeks

For engineers seeking reliable, high-performance dual-voltage regulation, the TPS70358PWPR delivers unmatched integration and efficiency. Its combination of advanced features, robust protection, and Texas Instruments' quality assurance makes it the optimal choice for demanding power management applications.