TPS70248PWP: Dual Output Linear Voltage Regulator from Texas Instruments

The TPS70248PWP by Texas Instruments is a high-efficiency dual-output linear voltage regulator designed to deliver stable 3.3V and 1.5V outputs, making it a top choice for power-sensitive applications. This IC is part of the PMIC - Voltage Regulators - Linear family, offering advanced features for superior power management. Below, we explore its specifications, benefits, and applications in detail.

Product Overview

• Manufacturer: Texas Instruments
• Part Number: TPS70248PWP
• Description: IC REG LINEAR 3.3V/1.5V 20-HTSSOP
• Category: Integrated Circuits (ICs)
• Subcategory: PMIC - Voltage Regulators - Linear
• Status: Active and RoHS Compliant

Key Features

Dual Fixed Outputs

Provides two fixed voltage rails: 3.3V (500mA) and 1.5V (250mA), eliminating the need for additional regulators.

Low Dropout Voltage

Just 0.28V dropout at 500mA ensures efficient operation even with low input voltages.

Excellent Power Supply Rejection

PSRR of 60dB (1kHz) minimizes noise for sensitive applications.

Robust Protection

Includes over-current, over-temperature, reverse polarity protection, and UVLO.

Wide Temperature Range

Operates from -40 C to +125 C, suitable for harsh environments.

Detailed Specifications

Parameter	Value
Input Voltage Range	Up to 6V
Output Current	500mA (3.3V), 250mA (1.5V)
Quiescent Current	190 A (typ)
Package	20-HTSSOP (4.4mm width)
Control Features	Enable, Power Good, Reset Sequencing

Applications

The TPS70248PWP is ideal for:

• Portable medical devices
• Industrial automation systems
• Automotive infotainment
• IoT edge nodes
• FPGA/ASIC power supplies

Design Advantages

Space-Saving Solution

The compact 20-HTSSOP package reduces PCB footprint by up to 50% compared to discrete solutions.

Simplified Power Sequencing

Integrated power-good signals and reset sequencing simplify multi-rail system design.

Enhanced Reliability

Texas Instruments' quality assurance includes rigorous testing for long-term reliability.

Technical Deep Dive

Thermal Performance

The device features excellent thermal characteristics with JA of 46.1 C/W, enabling operation at full load across the temperature range.

Noise Performance

With 60dB PSRR at 1kHz, the regulator maintains clean outputs even with noisy input supplies.

Start-Up Behavior

Controlled soft-start prevents inrush current issues during power-up.

Comparison with Competing Solutions

The TPS70248PWP outperforms similar regulators with:

• Lower quiescent current (190 A vs. 300 A typical competitors)
• Better thermal performance
• More integrated features (power good, sequencing)
• Smaller package size

Purchasing Information

Available through authorized distributors with the following options:

• Single units for prototyping
• Reel packaging (2500 units) for production
• Evaluation modules for testing

Support Resources

Texas Instruments provides:

• Detailed datasheet with application circuits
• PSpice simulation models
• Reference designs
• Technical support through E2E forums

Conclusion

The TPS70248PWP represents the ideal combination of performance, integration, and reliability for dual-voltage systems. Its exceptional specifications and Texas Instruments' quality make it the preferred choice for engineers designing power supplies for advanced electronic systems.

For volume pricing or technical questions, contact our sales team today to discuss how the TPS70248PWP can optimize your power design.