Overview
The TPS54560B-Q1 is a 60 V, 5 A step-down regulator with an integrated high-side MOSFET, designed by Texas Instruments. This device is capable of surviving load dump pulses up to 65 V per ISO 7637, making it robust for various industrial and automotive applications. It features current mode control, which simplifies external compensation and allows for flexible component selection. The regulator includes a low ripple pulse skip mode that reduces the no-load supply current to 146 µA and a shutdown supply current of 2 µA when the enable pin is pulled low. The device is available in an 8-terminal thermally enhanced HSOP PowerPAD™ package and operates over a wide temperature range of –40°C to 150°C.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 4.5 V to 60 V |
| Output Current | Up to 5 A |
| High-Side MOSFET Resistance | 92 mΩ |
| Operating Quiescent Current | 146 µA |
| Shutdown Current | 2 µA |
| Switching Frequency Range | 100 kHz to 2.5 MHz |
| Internal Voltage Reference | 0.8 V ± 1% |
| Package Type | 8-Terminal HSOP with PowerPAD™ |
| Operating Temperature Range | –40°C to 150°C |
Key Features
- High Efficiency at Light Loads with Pulse Skipping Eco-mode™
- 92-mΩ High-Side MOSFET
- Low Dropout at Light Loads with Integrated BOOT Recharge FET
- Adjustable UVLO Voltage and Hysteresis
- 0.8 V 1% Internal Voltage Reference
- Synchronizes to External Clock
- Wide Switching Frequency Range (100 kHz to 2.5 MHz)
- Internal Soft-Start Circuit to Reduce In-Rush Current and Output Voltage Overshoot
- Frequency Foldback and Thermal Shutdown for Overload Protection
- Integrated Bootstrap Voltage Regulator
Applications
- Industrial Automation and Motor Control
- Vehicle Accessories: GPS, Entertainment Systems
- USB Dedicated Charging Ports and Battery Chargers
- 12 V, 24 V, and 48 V Industrial, Automotive, and Communications Power Systems
Q & A
- What is the input voltage range of the TPS54560B-Q1?
The input voltage range is from 4.5 V to 60 V.
- What is the maximum output current of the TPS54560B-Q1?
The maximum output current is up to 5 A.
- What is the resistance of the high-side MOSFET in the TPS54560B-Q1?
The high-side MOSFET resistance is 92 mΩ.
- What is the operating quiescent current of the TPS54560B-Q1?
The operating quiescent current is 146 µA.
- What is the shutdown current of the TPS54560B-Q1?
The shutdown current is 2 µA when the enable pin is pulled low.
- What is the switching frequency range of the TPS54560B-Q1?
The switching frequency range is from 100 kHz to 2.5 MHz.
- How does the TPS54560B-Q1 handle load dump pulses?
The device survives load dump pulses up to 65 V per ISO 7637.
- What is the purpose of the Eco-mode in the TPS54560B-Q1?
The Eco-mode reduces switching and gate drive losses at light load currents, improving efficiency.
- How does the TPS54560B-Q1 protect against overload conditions?
The device features frequency foldback and thermal shutdown to protect internal and external components during overload conditions.
- What is the operating temperature range of the TPS54560B-Q1?
The operating temperature range is from –40°C to 150°C.
- What package type is the TPS54560B-Q1 available in?
The device is available in an 8-terminal thermally enhanced HSOP PowerPAD™ package.
