Part Number: TPS54160ADGQR

Manufacturer: Texas Instruments

Description: IC REG BUCK ADJ 1.5A 10MSOP

Shipped from: Shenzhen/HK Warehouse

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The TPS54160ADGQR9 is an adaptable and powerful Buck Switching Regulator IC that provides accurate voltage regulation and effective power conversion. This multipurpose device features a 1.5A current rating, a 10-PowerTFSOP/10-MSOP package, and an adjustable positive output voltage. An in-depth grasp of the TPS54160ADGQR9’s characteristics, operating concepts, applications, and design considerations is the goal of this thorough manual.

What is TPS54160ADGQR9

The highly effective and dependable TPS54160ADGQR9 Buck Switching Regulator IC is made to deliver precise voltage regulation and power conversion for a wide range of electronic applications. This IC offers versatility and adaptability to meet various power requirements thanks to its positive adjustable output voltage range starting at 0.8V and a current output capability of 1.5A.

The TPS54160ADGQR9’s remarkable efficiency, which assures minimal power dissipation and optimum energy use, is one of its most notable qualities. This efficiency makes it the perfect option for space-constrained systems where size and thermal control are crucial. It also comes in a small 10-PowerTFSOP/10-MSOP packaging.

The TPS54160ADGQR9 is suitable for various applications, including but not limited to:

  • Portable Devices: The IC is ideal for powering battery-operated portable gadgets like smartphones, tablets, and wearables because of its changeable output voltage and effective performance.
  • Embedded Systems: The TPS54160ADGQR9 can effectively power microcontrollers, digital signal processors (DSPs), and other parts on the board in embedded systems.
  • Industrial Automation: This regulator can be used in a variety of industrial automation systems, control panels, and motor drives due to its capacity to manage moderate output currents and a wide input voltage range.
  • Networking Equipment: The TPS54160ADGQR9 is a good option for network switches, routers, and other communication equipment because of its dependability and performance qualities.
  • vehicle Electronics: The IC is suitable for vehicle electronics, such as infotainment systems and onboard power supplies, thanks to its robustness and configurable output voltage range.

A buck switching regulator, a type of DC-DC converter that effectively lowers higher input voltages to lower output voltages, is how the TPS54160ADGQR9 functions. To maintain the correct output voltage level precisely, it uses a pulse-width modulation (PWM) control approach. It also uses a current mode control technique to maintain responsiveness and stability even under a variety of load scenarios.

The IC also includes soft-start technology, which guarantees a regulated and smooth startup procedure to avoid unexpected current spikes and voltage overshoots during power-on.

Operating Principles

The TPS54160ADGQR9 operates on the principles of a buck-switching regulator, which is a type of step-down DC-DC converter. Its architecture efficiently converts higher input voltages to lower output voltages by controlling the duty cycle of a switching element, typically a MOSFET. Let’s dive into the operating principles in detail:

Buck Switching Regulator Architecture

The buck-switching regulator consists of the following essential components:

  • Power Switch (MOSFET): The power switch regulates the flow of electricity from the input to the output. It is frequently a MOSFET. As a high-frequency switch, it controls whether energy can pass from the input to the output circuit.
  • When the power switch is turned on (conducting), the inductor (L) stores energy; when the switch is turned off (non-conducting), energy is released to the output. To achieve voltage regulation, it is essential to carry out this energy storage and transfer process.
  • When the power switch is off, the diode (D) gives the inductor a current route. It guarantees a constant flow of current via the output load and inductor.
  • Output Capacitor (Cout): By removing ripples brought on by the switching process, the output capacitor serves to smooth the output voltage.

Pulse-Width Modulation (PWM)

The Pulse-Width Modulation (PWM) method is at the core of the buck-switching regulator’s control. PWM control modifies the power switch’s duty cycle, controlling how long the switch is on as opposed to off during each switching cycle.

The controller lowers the duty cycle when the input voltage exceeds the intended output voltage, prolonging the time the switch remains in the off state. The average output voltage falls as a result. In contrast, a lower input voltage causes the duty cycle to be raised, which raises the average output voltage.

Feedback Control Loop

The output voltage is kept constant by the buck regulator using a feedback control loop. A reference voltage is produced by a voltage reference or a voltage divider network connected to the output. The control circuit compares this reference voltage to the actual output voltage and amplifies any differences.

In order to get the output voltage to the intended setpoint, the control circuit subsequently modifies the duty cycle of the power switch depending on the error signal. Even when the input voltage or load circumstances vary, the output voltage is kept stable and tightly regulated thanks to this ongoing feedback mechanism.

Current Mode Control

Current mode control, a well-liked control method for switching regulators, is used by the TPS54160ADGQR9. In this method, the inductor current is measured using a current-sensing component, such as a resistor or an inductor. The control circuit is then supplied with the detected current.

Improved load transient response, higher stability in high-frequency applications, and built-in protection from overcurrent situations are just a few benefits of current mode control.

Soft-Start Functionality

The TPS54160ADGQR9 uses a soft-start feature to progressively ramp up the output voltage during starting. By doing this, the output is prevented from quickly reaching the set voltage, which could lead to excessive current spikes and voltage overshoots.

In order to give the system time to stabilize and avoid any potential component damage, the slope of the rising output voltage is controlled to provide the soft-start feature.

Key Features and Specifications

The TPS54160ADGQR9 is a versatile and high-performance Buck Switching Regulator IC that offers a number of essential features and specifications. Let’s examine each of these features in more detail:

  1. The TPS54160ADGQR9 has a wide input voltage range, which often ranges from several volts to significantly higher than the intended output voltage. Based on the working environment and design considerations, the precise input voltage range may vary significantly.
  2. Output Voltage Range: Starting at 0.8V, this IC offers a positive adjustable output voltage range. Within this range, users can adjust the output voltage to suit their individual application needs.
  3. A strong output current rating of 1.5A is provided by the TPS54160ADGQR9. It is hence excellent for powering a variety of electronic loads, including microcontrollers, sensors, and other devices. It can generate a constant output current of up to 1.5 amperes.
  4. Switching Frequency: To accomplish effective power conversion, the gadget operates in a high-frequency switching mode. The switching frequency, which is commonly expressed in megahertz (MHz), can change based on the load and other elements. External components that are smaller and more effective frequently result from higher switching frequencies.

Characteristics of efficiency The TPS54160ADGQR9 is renowned for having high efficiency, or the proportion of input to output power. Under normal working circumstances, the efficiency can reach far beyond 90%, minimizing power losses and maximizing energy efficiency. High efficiency is especially important for battery-powered devices and applications with rigorous power consumption constraints.


Unleash the TPS54160ADGQR9 Buck Switching Regulator IC’s versatility, efficiency, and high-performance capabilities. With a wide input voltage range, stable output voltages, and protection features, it’s perfect for diverse electronic designs. Trust this compact IC for reliable and efficient power solutions in automotive, industrial, and consumer electronics. Get it from ICRFQ, a leading distributor in China.

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