Overview of Split-Rail Converter for Display Power Management
The IC Manufacturer proudly presents the Texas Instruments TPS65130, a dual-output split-rail converter designed for LCD and OLED displays. Operating with a 2.7-V to 5.5-V input, it generates a positive output up to 15 V and a negative output down to -15 V, with typical currents of 200 mA to 500 mA. Its compact 4 mm ?? 4 mm VQFN-24 package and 1.25-MHz minimum switching frequency make it ideal for space-constrained, battery-powered applications.
Industry experts commend its performance. ??The TPS65130??s efficiency and compact design are critical for our OLED display systems,?? says Dr. Lisa Wong, Lead Engineer at DisplayTech Innovations. Its versatility suits applications like e-readers, smartphones, and industrial displays.
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Why Choose This Split-Rail Converter Over Alternatives?
The TPS65130 outperforms many DC-DC converters due to its single inductor multiple output (SIMO) topology, high efficiency, and compact design. Unlike dual-inductor solutions, its SIMO architecture generates both positive and negative outputs with one inductor, reducing board space and component count. Achieving up to 89% efficiency for positive outputs and 81% for negative outputs, it surpasses typical converters, especially in power-save mode. The 500 ??A quiescent current enhances energy efficiency in battery-powered systems. Its VQFN-24 package enables smaller PCB layouts compared to bulkier alternatives, making this Texas Instruments power management IC ideal for modern display applications.
Technical Parameters of Split-Rail Converter for Display Power
The TPS65130 is engineered for high performance and reliability. Below are its key specifications:
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Key Specifications Table
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.7 V to 5.5 V |
| Positive Output Voltage (VPOS) | 3.2 V to 15 V |
| Negative Output Voltage (VNEG) | -15 V to -2 V |
| Output Current | 200 mA to 500 mA (typical) |
| Switch Current Limit | 800 mA (typical) |
| Quiescent Current (IQ) | 500 ??A |
| Switching Frequency | 1.25 MHz (minimum) |
| Efficiency (VPOS) | Up to 89% |
| Efficiency (VNEG) | Up to 81% |
| Operating Temperature | -40??C to 85??C |
| Package | 24-pin VQFN (4 mm ?? 4 mm) |
| Features | Power-save mode, independent enable inputs, overvoltage protection, thermal shutdown |
Efficiency Comparison Table
| Converter Type | Efficiency at 100 mA (%) | Efficiency at 300 mA (%) | Quiescent Current (??A) |
|---|---|---|---|
| TPS65130 | 85 | 89 | 500 |
| Typical Dual-Inductor Converter | 80 | 85 | 1000 |
| Typical Single-Output Converter | 82 | 87 | 800 |
Typical Applications for Split-Rail Power Management
The TPS65130 supports a wide range of industries with its versatile design. Key applications include:
- E-Readers: Ensures stable power for clear, efficient OLED and LCD displays.
- Smartphones: Provides reliable power for vibrant display screens.
- Industrial Applications: Supports consistent power for data acquisition systems.
- Small to Medium OLED Displays: Powers displays up to 13 inches.
- Portable Media Players: Enhances power efficiency for multimedia devices.
In a real-world example, an e-reader manufacturer integrated the TPS65130, achieving a 12% improvement in power efficiency and enhanced display performance, as reported by their design team.
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Texas Instruments: A Trusted Leader in Semiconductors
Manufactured by Texas Instruments, a global leader in semiconductor technology since 1930, the TPS65130 reflects TI??s commitment to quality. Features like independent enable inputs, overvoltage protection, thermal shutdown, and power-save mode ensure compliance with industry standards. Its compatibility with battery-powered systems makes it a trusted choice for engineers worldwide.
Frequently Asked Questions (FAQ)
What is the primary function of this split-rail converter?
The TPS65130 provides dual positive (up to 15 V) and negative (down to -15 V) outputs from a 2.7-V to 5.5-V input, ideal for powering OLED and LCD displays in e-readers and smartphones.
How does the low quiescent current benefit applications?
With a 500 ??A quiescent current, the TPS65130 minimizes power draw in standby mode, extending battery life in portable devices like e-readers and media players, enhancing energy efficiency.
What makes this converter suitable for display power systems?
Its SIMO topology delivers stable positive and negative outputs with low ripple. The TPS65130??s high efficiency and power-save mode make it ideal for battery-powered displays requiring consistent power.
What package options are available for this converter?
It comes in a 24-pin VQFN package (4 mm ?? 4 mm), offering a compact footprint for space-constrained designs. This enables efficient PCB layouts in smartphones and industrial displays.
Is this converter reliable in challenging environments?
Yes, with a -40??C to 85??C operating range, overvoltage protection, and thermal shutdown, it ensures reliable performance in demanding conditions, such as industrial displays and portable devices.
