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TPS51117PWR
+БОМIC REG CTRLR BUCK 14TSSOP
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ПроизводительТехасские инструменты
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Мфр. Часть #TPS51117PWR
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Лист данных TPS51117PWR DataSheet
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В наличии4201
365 Дни гарантии качества
7*24 часы обслуживания каранти
90-гарантия послепродажного дня
Гарантия подлинного продукта
Спецификации
| Атрибут | Ценность |
| Series | D-CAP™ |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 5.5V |
| Synchronous Rectifier | Yes |
| Clock Sync | No |
| Control Features | Enable, On Time Control, Power Good |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 14-TSSOP |
| Base Product Number | TPS51117 |
Обзор
Description
Key specifications include a wide input voltage range from 4.5V to 17V, adjustable output voltage, and programmable current limits. The device supports a peak current mode control scheme, which enhances stability and control across various load conditions. The TPS51117 includes features such as soft-start, over-voltage protection, and thermal shutdown, ensuring reliable operation.
Its compact package, typically in a 20-pin HTQFP, makes it ideal for space-constrained designs. The TPS51117PWR is popular among engineers for its robustness, efficiency, and ease of integration in complex power management solutions.
Equivalent
Features
1. Dual Output: Supports two separate output voltages for core and auxiliary supplies.
2. Wide Input Voltage Range: Operates from 4.5V to 17V, accommodating various power sources.
3. Adaptive Voltage Positioning: Provides excellent load transient performance and reduces output voltage droop during load changes.
4. Integrated Gate Drivers: Includes high-efficiency gate drivers for N-channel MOSFETs, simplifying design.
5. Adjustable Switching Frequency: Operates from 300 kHz to 1 MHz, allowing optimization for efficiency and performance.
6. Power Good Indicator: Monitors output voltages and provides a power-good signal to the system.
7. Current Limit Protection: Features cycle-by-cycle current limiting to protect against overload conditions.
8. Thermal Shutdown: Offers built-in thermal protection to prevent overheating.
9. Compact Package: Available in a 20-pin HTQFP package for space-saving designs.
These features make the TPS51117PWR suitable for a wide range of applications in portable and embedded systems.
Pinout
Key functions include:
1. Power Regulation: Provides two voltage outputs with adjustable settings, optimized for power management.
2. Voltage Feedback: Monitors output voltages to maintain stability and accuracy.
3. Phase Control: Allows for interleaving two phases for improved efficiency and reduced ripple.
4. Power-On Reset (POR): Ensures that outputs are stable before the CPU or other devices are powered on.
5. Soft-Start Function: Controls the rate of output voltage ramp-up to avoid inrush current.
6. Overcurrent Protection: Protects against excessive current conditions.
7. Enable/Disable Control: Allows for easy power management.
The TPS51117PWR is suitable for applications requiring efficient power supply solutions, such as motherboards and high-performance computing devices.