Overview
The TPS54560BDDA from Texas Instruments is a high-performance, 4.5-V to 60-V input, 5-A step-down DC/DC converter. This device features an integrated high-side n-channel MOSFET and operates in current-mode control, which simplifies external compensation and allows for flexible component selection. The TPS54560BDDA is designed to provide high efficiency, especially at light loads, thanks to its pulse skipping Eco-mode™. It is available in an 8-pin thermally enhanced HSOIC PowerPAD™ package, ensuring efficient thermal management.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage (VIN) | 4.5 | 60 | V | |
| Output Current | 5 | A | ||
| Switching Frequency | 100 kHz | 2.5 MHz | ||
| High-Side MOSFET Resistance | 92 mΩ | |||
| Operating Quiescent Current | 146 μA | |||
| Shutdown Supply Current | 2 μA | |||
| Internal Voltage Reference | 0.8 V ±1% | |||
| Operating Junction Temperature | -40°C | 150°C | ||
| Package Type | 8-Pin HSOIC with PowerPAD™ |
Key Features
- High efficiency at light loads with pulse skipping Eco-mode™
- Integrated 92-mΩ high-side MOSFET
- Low quiescent current: 146 μA operating, 2 μA shutdown
- Wide switching frequency range: 100 kHz to 2.5 MHz, adjustable via RT/CLK pin
- Synchronizes to external clock
- Low dropout at light loads with integrated BOOT recharge FET
- Adjustable undervoltage lockout (UVLO) and hysteresis
- Internal 0.8 V ±1% voltage reference
- Internal soft-start circuit to control output rise time and eliminate overshoot
- Frequency foldback and thermal shutdown for overload protection
- Integrated bootstrap voltage regulator
- Overvoltage transient protection (OVP) comparator
Applications
- Industrial automation and motor control
- USB dedicated charging ports and battery chargers
- 12-V, 24-V, and 48-V industrial and communications power systems
Q & A
- What is the input voltage range of the TPS54560BDDA?
The input voltage range is from 4.5 V to 60 V.
- What is the maximum output current of the TPS54560BDDA?
The maximum output current is 5 A.
- What is the switching frequency range of the TPS54560BDDA?
The switching frequency range is from 100 kHz to 2.5 MHz.
- How does the TPS54560BDDA manage efficiency at light loads?
The device uses pulse skipping Eco-mode™ to improve efficiency at light loads.
- What is the operating quiescent current of the TPS54560BDDA?
The operating quiescent current is 146 μA.
- What is the shutdown supply current of the TPS54560BDDA?
The shutdown supply current is 2 μA.
- What type of package does the TPS54560BDDA come in?
The device is available in an 8-pin HSOIC with PowerPAD™ package.
- What is the operating junction temperature range of the TPS54560BDDA?
The operating junction temperature range is from -40°C to 150°C.
- Does the TPS54560BDDA have overvoltage protection?
Yes, it includes an overvoltage transient protection (OVP) comparator.
- How does the TPS54560BDDA protect against overload conditions?
The device features frequency foldback and thermal shutdown to protect against overload conditions.
