TLV75509PDBVR: Texas Instruments' Ultra-Efficient 0.9V 500mA Linear Voltage Regulator

The TLV75509PDBVR from Texas Instruments represents the cutting edge in low-power linear voltage regulation technology. As part of TI's renowned TLV755 series, this fixed-output regulator delivers exceptional performance for power-sensitive applications. With its 0.9V output and 500mA current capability, this IC is revolutionizing power management in portable electronics, IoT devices, and embedded systems.

Comprehensive Technical Specifications

Input/Output Characteristics

• Input Voltage Range: 1.9V to 5.5V
• Fixed Output Voltage: 0.9V 1.5% accuracy
• Maximum Output Current: 500mA continuous
• Dropout Voltage: 200mV typical at 300mA load

Efficiency Features

• Ultra-Low Quiescent Current: 31 A typical (45 A max)
• Power Supply Rejection Ratio: 52dB at 1kHz
• Thermal Resistance: 256 C/W (SOT-23-5 package)

Advanced Protection Mechanisms

The TLV75509PDBVR incorporates multiple protection features that make it exceptionally reliable:

• Over-Current Protection: Limits output current during faults
• Thermal Shutdown: Activates at 160 C (typical)
• Inrush Current Limitation: Soft-start capability

Package and Environmental Specifications

• Package Type: SOT-23-5 (DBV) with 2.9mm 1.6mm footprint
• Operating Temperature Range: -40 C to +125 C
• Moisture Sensitivity Level (MSL): Level 1 (unlimited floor life)

Applications and Design Considerations

The TLV75509PDBVR excels in numerous applications:

• Battery-Powered Devices: Extends battery life with ultra-low IQ
• Point-of-Load Regulation: Ideal for processors and FPGAs
• Industrial Sensors: Reliable operation in harsh environments
• Consumer Electronics: Space-constrained designs

Comparative Advantages

When benchmarked against similar regulators, the TLV75509PDBVR offers:

• Lower dropout voltage than competing 500mA LDOs
• Better PSRR performance across frequency range
• Smaller solution size compared to adjustable regulators
• Higher accuracy than basic linear regulators

Design Resources and Support

Texas Instruments provides comprehensive support for the TLV75509PDBVR:

• SPICE simulation models
• Evaluation module (EVM) availability
• Detailed application notes for PCB layout
• Thermal design guidelines

Purchasing Information

The TLV75509PDBVR is available in tape-and-reel packaging with 3,000 units per reel. Sample quantities can be obtained directly from authorized distributors. For high-volume applications, consult Texas Instruments for customized solutions.

This regulator represents an optimal balance of performance, size, and power efficiency for modern electronic designs. Its combination of features makes it particularly valuable for applications where power conservation and reliability are critical requirements.