Overview
The TPS54060ADGQR is a 60-V, 0.5-A step-down (buck) regulator produced by Texas Instruments. This device features an integrated high-side n-channel MOSFET, which enables high-efficiency power supply designs. It operates with a wide input voltage range of 3.5V to 60V and can deliver up to 0.5 amperes of continuous current to the load. The regulator uses constant frequency, current-mode control to improve performance during line and load transients, simplifying external frequency compensation design. The TPS54060ADGQR also includes features such as Eco-Mode™ for high efficiency at light loads, frequency foldback, and thermal shutdown to protect the device during overload conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Input Voltage (VIN) | 3.5 | 60 | V | |
| Output Current | 0.5 | A | ||
| High-Side MOSFET Resistance | 200 mΩ | |||
| Switching Frequency Range | 100 kHz | 2500 kHz | ||
| Shutdown Supply Current (EN = 0 V) | 1.3 μA | 4 μA | ||
| Operating Current (Non-switching) | 116 μA | 136 μA | ||
| Thermal Shutdown Temperature | 182 °C | |||
| Output Voltage Reference | 0.8 V |
Key Features
- Integrated High-Side MOSFET: 200 mΩ high-side MOSFET for high-efficiency power supply designs.
- Wide Input Voltage Range: Operates from 3.5V to 60V.
- Current-Mode Control: Constant frequency, peak current-mode control for simplified external frequency compensation.
- Eco-Mode™: High efficiency at light loads.
- Frequency Foldback and Thermal Shutdown: Protects the device during overload and overtemperature conditions.
- Power Good Comparator (PWRGD): Monitors the regulated output voltage and asserts when it is outside the nominal range.
- Slow Start/Tracking (SS/TR) Pin: Minimizes inrush currents and provides power supply sequencing during power-up.
- Internal Phase Lock Loop (PLL): Synchronizes the power switch turn-on to a falling edge of an external system clock.
Applications
- Industrial and Commercial Systems: Suitable for 12-V, 24-V, and 48-V systems.
- Aftermarket Auto Accessories: Ideal for video, GPS, and entertainment systems.
- Low Power Systems: Efficient operation in low-power applications.
Q & A
- What is the input voltage range of the TPS54060ADGQR?
The input voltage range is from 3.5V to 60V.
- What is the maximum output current of the TPS54060ADGQR?
The maximum output current is 0.5 amperes.
- What type of control does the TPS54060ADGQR use?
The device uses constant frequency, peak current-mode control.
- What is the purpose of the Eco-Mode™ in the TPS54060ADGQR?
Eco-Mode™ provides high efficiency at light loads.
- How does the TPS54060ADGQR protect against overtemperature conditions?
The device features thermal shutdown that activates at approximately 182 °C.
- What is the function of the PWRGD pin in the TPS54060ADGQR?
The PWRGD pin asserts when the regulated output voltage is outside the nominal range (less than 92% or greater than 109%).
- How does the SS/TR pin function in the TPS54060ADGQR?
The SS/TR pin minimizes inrush currents and provides power supply sequencing during power-up.
- Can the TPS54060ADGQR be synchronized with an external clock?
Yes, the device has an internal phase lock loop (PLL) that synchronizes the power switch turn-on to a falling edge of an external system clock.
- What is the typical shutdown supply current of the TPS54060ADGQR when EN = 0 V?
The typical shutdown supply current is 1.3 μA.
- What is the output voltage reference of the TPS54060ADGQR?
The output voltage reference is 0.8 V.
