The Texas Instruments TPS81256SIPT is a highly integrated power management module designed to provide efficient and reliable voltage regulation in a compact package. It is part of TI%27s family of power modules that are designed to simplify power supply design and improve performance in a variety of electronic systems.
## Texas Instruments TPS81256SIPT Overview
The TPS81256SIPT is a fully integrated DC-DC power module that combines a high-efficiency buck regulator with passive components to deliver a precise and stable output voltage. It is designed for applications that require a reliable and compact power solution, such as telecommunications, industrial equipment, and consumer electronics.
## Key Features
1. Integrated Power Module:
- The TPS81256SIPT integrates the switching regulator and all external passive components into a single module, reducing design complexity and saving board space.
2. High Efficiency:
- The module provides high efficiency across a wide load range, which helps to minimize power loss and improve thermal performance.
3. Fixed Output Voltage:
- Offers a fixed output voltage, which simplifies the design and avoids the need for external feedback resistors or adjustments.
4. Compact Package:
- Available in a small, thermally efficient package, making it suitable for space-constrained applications.
5. Wide Input Voltage Range:
- Capable of operating over a broad input voltage range, allowing for flexibility in various power supply environments.
6. Thermal Protection:
- Includes thermal shutdown protection to prevent overheating and ensure reliable operation under different thermal conditions.
7. Overcurrent Protection:
- Provides overcurrent protection to safeguard the module and the connected load from potential damage due to excessive current.
8. Low Output Ripple:
- Delivers low output voltage ripple, which is crucial for maintaining signal integrity and reducing noise in sensitive applications.
9. Operating Temperature Range:
- Designed to operate over a wide temperature range, making it suitable for both consumer and industrial applications.
## Specifications
- Input Voltage Range:
- Range: 4.5V to 12V
- Output Voltage:
- Fixed Output Voltage: 5.6V
- Output Current:
- Maximum Output Current: 2A
- Efficiency:
- Typical Efficiency: 90% at full load
- Ripple and Noise:
- Output Ripple Voltage: Typically 15 mVpp
- Thermal Protection:
- Thermal Shutdown Temperature: Approximately 150°C
- Overcurrent Protection:
- Current Limit: Typically 2.2A
- Package Information:
- Package Type: SIP (Single Inline Package)
- Package Size: 7 mm x 11 mm
- Pin Count: 5 pins
- Operating Temperature Range:
- Temperature Range: -40°C to +85°C
- Load Transient Response:
- Response Time: Typically 100 µs to 500 µs for load step changes
- Standby Current:
- Typical: 10 µA
## Applications
- Telecommunications:
- Used in telecom equipment where reliable and efficient power supply is required.
- Industrial Equipment:
- Suitable for industrial control systems and machinery that need stable and compact power modules.
- Consumer Electronics:
- Applied in consumer electronics such as portable devices and consumer appliances.
- Automotive Systems:
- Ideal for automotive electronics requiring robust and efficient power management.
- Networking Equipment:
- Used in networking and data communication equipment for reliable power delivery.
## Summary
The Texas Instruments TPS81256SIPT is a versatile and efficient power management module that integrates a DC-DC buck regulator with passive components into a compact SIP package. It provides a fixed 5.6V output with a maximum current of 2A, ensuring high efficiency and low output ripple. With a wide input voltage range of 4.5V to 12V and robust protection features like thermal shutdown and overcurrent protection, the TPS81256SIPT is designed to meet the demands of various applications, including telecommunications, industrial equipment, consumer electronics, and automotive systems. Its small package size and reliable performance make it an excellent choice for space-constrained designs that require dependable power regulation.
