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TPS40428RHAR
+NomenclatureIC REG CTRLR BUCK PMBUS 40VQFN
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FabricantTexas Instruments
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Pièce fabricant #TPS40428RHAR
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Package VQFN (RHA)-40
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En stock4849
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Spécifications
| Attribut | Valeur |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputType | PWM Signal |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| NumberofOutputs | 2 |
| OutputPhases | 2 |
| Voltage-Supply(Vcc/Vdd) | 4.5V ~ 20V |
| Frequency-Switching | 200kHz ~ 1.5MHz |
| SynchronousRectifier | No |
| ClockSync | Yes |
| SerialInterfaces | PMBus |
| ControlFeatures | Frequency Control, Phase Control, Power Good |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 40-VFQFN Exposed Pad |
Présentation
Description
Key features include a wide input voltage range, programmable frequency, and voltage-mode control with input feed-forward compensation. The TPS40428 offers comprehensive protection features, such as overcurrent protection, overvoltage protection, and thermal shutdown, ensuring reliability and safety in operation. Its PMBus interface allows for real-time monitoring, control, and diagnostics, facilitating easy integration and system management.
The device is suitable for use in servers, telecommunications equipment, and other high-performance computing applications, where efficient power conversion and precise voltage regulation are critical. Its compact package and feature-rich design make it suitable for modern electronic systems requiring reliable and efficient power management solutions.
Equivalent
1. LTC3875 from Analog Devices
2. ISL6388 from Renesas Electronics
3. MAX1519 from Maxim Integrated
4. MP2965 from Monolithic Power Systems
These alternatives offer similar functionality for voltage regulation in power management applications. Always verify specifications and compatibility with your specific requirements before selecting a replacement.
Features
1. Wide Input Voltage Range: Supports input voltages from 4.5V to 20V, making it versatile for various power systems.
2. High Efficiency: Achieves high efficiency with its synchronous rectification and innovative control methods.
3. Two-Phase Operation: Supports two-phase operation, allowing it to handle higher current loads and reduce output ripple.
4. Programmable Switching Frequency: Allows for programmable switching frequencies from 200 kHz to 1.5 MHz, providing flexibility in design.
5. Current Sharing: Implements current sharing for parallel operation, enhancing load capacity and reliability.
6. Voltage Margining: Enables easy voltage margining to facilitate system testing and validation.
7. Comprehensive Protection Features: Includes overvoltage, undervoltage, overcurrent, and thermal protection, enhancing system safety and reliability.
8. PMBus Interface: Supports the PMBus interface for digital communication, allowing for real-time monitoring and control.
These features make the TPS40428RHAR suitable for computing, networking, and telecom applications requiring efficient and reliable power management.
Pinout
The TPS40428RHAR comes in a 32-pin VQFN package. It provides a variety of functions, including:
1. Dual output synchronous buck control, allowing for the regulation of two independent voltage rails.
2. PMBus interface for digital communication, monitoring, and control.
3. Programmable switching frequency for optimizing performance and efficiency.
4. Voltage tracking and sequencing for coordinated startup and shutdown of multiple power rails.
5. Comprehensive fault protection, including overcurrent, overvoltage, and overtemperature protection.
6. Remote voltage sensing to ensure accurate voltage regulation at the load point.
These features make it suitable for complex power management systems where flexibility, reliability, and performance are crucial.