TPS61080DRCR

TPS61080DRCR Application Field and Working Principle

The TPS61080DRCR is a high-efficiency DC–DC Buck Switching Regulator from Texas Instruments. It features a wide 4.5V–14V input voltage range, dual output voltages, a peak input current limit, short-circuit-protection, a power good indicator, internal soft start, and adjustable frequency. The system is easy to use, compact, and easy to scale.

The TPS61080DRCR is ideal for automotive, industrial, computer, appliance, and portable applications. It is designed for use in power supplies, battery chargers, and other AC/DC and DC/DC applications. The regulator is capable of delivering up to 4A current at an output voltage between 0.7V and 5.5V. The output voltage is typically accurate to +/- 1.4% over line, load and temperature ranges.

Working Principle

The TPS61080DRCR implements a fixed-frequency, current-mode control scheme. This is an advanced control scheme that includes internal compensation techniques. It provides smooth and fast transient response and stable loop performance. The power stage consists of a switched-mode power supply with an external Schottky diode, and the integrated high side current sense transistor. The integrated control block receives the information of the output voltage and current, and provides the pulse width modulation (PWM) signal to the driver section.

The TPS61080DRCR also includes internal protective features such as overcurrent protection (OCP) and short-circuit protection (SCP). These features provide protection against excessive input and output currents by disabling the switching stage and limiting the maximum output current. The OCP loop sets the peak current that can flow through the external power transistor and the output Schottky diode. Similarly, the SCP loop limits the load current to a preset level during the fault condition.

Features and Benefits

• Wide Input Voltage Range: 4.5V-14V
• Accurate Output Voltage: +/- 1.4% Over Line, Load and Temperature Ranges
• Built-In Soft-Start: Reduces Inrush Current During Start-Up
• Switch Frequency and Current Limit Adjustable
• Small Size: 4 mm x 5 mm MSOP-10 Package
• Overcurrent Protection (OCP) and Short-Circuit Protection (SCP)

Conclusion

The TPS61080DRCR is an all-in-one DC–DC Buck Switching Regulator from Texas Instruments. It features a wide 4.5V–14V input voltage range, dual output voltages, a peak input current limit, short-circuit-protection, a power good indicator, internal soft start, and adjustable frequency. The TPS61080DRCR is ideal for automotive, industrial, computer, appliance, and portable applications. It is designed for use in power supplies, battery chargers, and other AC/DC and DC/DC applications. The regulator also includes internal protective features such as overcurrent protection (OCP) and short-circuit protection (SCP).