TPS54226RGTR
Synchronous step-down voltage regulators for efficient power conversion
Manufacturer： ti
series introduction
# TPS54226RGTR Product Series Introduction
## 1. Overview
The TPS54226RGTR is a highly efficient, step - down (buck) DC - DC converter belonging to Texas Instruments' extensive portfolio of power management integrated circuits. This product series is designed to meet the diverse power conversion needs of various electronic devices, offering a reliable and cost - effective solution for applications that require stable and regulated power supplies.
## 2. Key Features
### 2.1 High Efficiency
- The TPS54226RGTR features a high - efficiency design, which can significantly reduce power losses during the conversion process. This is achieved through advanced circuit topologies and low - resistance internal switches. For example, it can operate with an efficiency of up to 95% under typical load conditions. High efficiency not only saves energy but also reduces heat generation, which is crucial for the long - term reliability of the device and the overall system.
- The device uses a pulse - width modulation (PWM) control scheme, which adjusts the duty cycle of the switching signal to maintain a stable output voltage. This allows for efficient power transfer over a wide range of input and output voltages.
### 2.2 Wide Input Voltage Range
- It can accept an input voltage range from 4.5V to 28V. This wide input voltage range makes it suitable for a variety of power sources, such as batteries, wall adapters, and automotive power systems. For instance, in a battery - powered application, it can handle the voltage variations as the battery discharges, ensuring a stable output voltage for the connected load.
- The ability to operate with a wide input voltage range also provides flexibility in system design, allowing the same converter to be used in different power supply scenarios without significant modifications.
### 2.3 Adjustable Output Voltage
- The output voltage of the TPS54226RGTR can be adjusted from 0.8V to 20V using external resistors. This adjustability makes it suitable for powering different types of loads with varying voltage requirements. For example, it can be used to power microcontrollers, digital signal processors (DSPs), and other integrated circuits that typically require low - voltage, regulated power supplies.
- The output voltage regulation is very precise, with a typical accuracy of ±1%, ensuring that the connected load receives a stable and consistent voltage supply.
### 2.4 Integrated Protection Features
- **Over - current Protection (OCP)**: The device is equipped with over - current protection to prevent damage to the converter and the load in case of a short - circuit or excessive current draw. When the output current exceeds a certain threshold, the converter will automatically reduce the output current or shut down to protect itself and the connected components.
- **Over - temperature Protection (OTP)**: Over - temperature protection is also integrated into the TPS54226RGTR. If the device temperature rises above a safe operating limit, it will reduce the power dissipation by adjusting the switching frequency or shutting down the converter until the temperature returns to a normal level. This helps to prevent thermal damage to the device and ensures its long - term reliability.
- **Under - voltage Lockout (UVLO)**: The under - voltage lockout feature ensures that the converter does not start operating until the input voltage reaches a minimum specified level. This protects the device from operating under unstable or insufficient power conditions, which could lead to improper operation or damage.
### 2.5 Small Package Size
- The TPS54226RGTR is available in a small, thermally enhanced 8 - pin SOIC (Small Outline Integrated Circuit) package. The small package size makes it suitable for space - constrained applications, such as portable devices, IoT (Internet of Things) sensors, and wearable
Images for reference
16-VFQFN
16-VQFN (exposed pad)
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