TPS54310PWP
3A synchronous step-down voltage regulators with adjustable output
Manufacturer： ['rochester', 'analog-devices', 'ti']
series introduction
# TPS54310PWP Product Series Introduction
## 1. Overview
The TPS54310PWP is a highly efficient, synchronous step - down DC - DC converter belonging to Texas Instruments' extensive power management product portfolio. 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 TPS54310PWP utilizes synchronous rectification technology, which significantly reduces power losses compared to traditional non - synchronous converters. This results in high conversion efficiencies, often reaching up to 95% or more, depending on the input and output voltage conditions and the load current. High efficiency not only saves energy but also reduces heat dissipation, which is crucial for the long - term reliability of the device.
### 2.2 Wide Input Voltage Range
- It can accept an input voltage range from 4.5V to 28V. This wide range makes it suitable for a variety of power sources, such as batteries (e.g., lithium - ion batteries with different cell configurations) and regulated or unregulated DC power supplies. For example, in automotive applications, where the battery voltage can vary depending on the charging state and the electrical load, the TPS54310PWP can handle these voltage fluctuations effectively.
### 2.3 Adjustable Output Voltage
- The output voltage of the TPS54310PWP can be adjusted from 0.8V to 20V using an external resistor divider network. This flexibility allows designers to tailor the power supply to the specific requirements of the load. Whether it's powering low - voltage microcontrollers, digital signal processors, or other integrated circuits, the TPS54310PWP can provide the appropriate output voltage.
### 2.4 High Output Current Capability
- It is capable of delivering a continuous output current of up to 3A. This makes it suitable for powering medium - to high - power loads, such as high - performance microprocessors, FPGAs, and power - hungry communication modules. The high output current capability ensures that the device can meet the power demands of these components even under heavy load conditions.
### 2.5 Integrated Protection Features
- **Over - Current Protection (OCP)**: The TPS54310PWP is equipped with over - current protection to prevent damage to the device and the load in case of a short - circuit or excessive current draw. When the output current exceeds a predefined limit, the converter will automatically reduce the output current or shut down to protect itself and the connected components.
- **Over - Temperature Protection (OTP)**: To prevent overheating, the device has an over - temperature protection mechanism. If the junction temperature of the TPS54310PWP rises above a certain threshold, the converter will reduce its power dissipation or shut down until the temperature returns to a safe level.
- **Under - Voltage Lockout (UVLO)**: UVLO ensures that the converter only starts operating when the input voltage is above a specified minimum level. This protects the device from operating in an unstable or unreliable mode due to low input voltage.
## 3. Package and Thermal Characteristics
### 3.1 Package Type
- The TPS54310PWP comes in a PowerPAD™ TSSOP - 16 package. This package offers several advantages, including good thermal performance, a relatively small footprint, and ease of PCB layout. The PowerPAD feature helps to improve the heat transfer from the device to the printed circuit board, which is essential for dissipating the heat generated during operation.
### 3.2 Thermal Resistance
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Images for reference
20-TSSOP Epad
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