TPS70928DBVT
Low-dropout voltage regulators for efficient power management
Manufacturer： ti
series introduction
# TPS70928DBVT Product Series Introduction
## 1. Overview
The TPS70928DBVT is a part of a high - performance voltage regulator product series offered by Texas Instruments. Voltage regulators are crucial components in electronic circuits as they ensure a stable and reliable power supply to various electronic devices. The TPS70928DBVT is specifically designed to meet the demanding power requirements of modern electronic systems, providing a precise and regulated output voltage in a wide range of applications.
## 2. Key Features
### 2.1 Low Dropout Voltage
One of the standout features of the TPS70928DBVT is its low dropout voltage. Dropout voltage is the minimum difference between the input voltage and the output voltage required for the regulator to maintain a stable output. A low dropout voltage allows the regulator to operate efficiently even when the input voltage is only slightly higher than the desired output voltage. This is particularly useful in battery - powered applications where the battery voltage decreases over time. For example, in a portable device running on a single - cell lithium - ion battery, as the battery discharges, the TPS70928DBVT can still provide a stable output voltage with minimal power loss.
### 2.2 High Output Voltage Accuracy
The TPS70928DBVT offers high output voltage accuracy. It can maintain the output voltage within a very tight tolerance, typically within ±1% or even better. This high accuracy is essential in applications where precise voltage levels are required for the proper operation of sensitive components such as microcontrollers, analog - to - digital converters (ADCs), and radio frequency (RF) circuits. For instance, in a wireless sensor node, accurate voltage regulation ensures that the ADC can convert analog signals with high precision, leading to more accurate sensor readings.
### 2.3 Low Quiescent Current
Quiescent current is the current consumed by the regulator when there is no load or a very light load connected to the output. The TPS70928DBVT has a low quiescent current, which is beneficial for battery - powered applications as it helps to extend the battery life. In standby or sleep modes of electronic devices, where the load current is extremely low, the low quiescent current of the TPS70928DBVT ensures that the battery is not drained unnecessarily.
### 2.4 Thermal Shutdown and Over - Current Protection
To ensure the reliability and safety of the regulator and the connected electronic components, the TPS70928DBVT is equipped with thermal shutdown and over - current protection features. Thermal shutdown protects the device from overheating by automatically shutting down the regulator when the temperature exceeds a certain threshold. Over - current protection limits the output current to a safe level in case of a short - circuit or an over - load condition, preventing damage to the regulator and other components in the circuit.
## 3. Technical Specifications
### 3.1 Input and Output Voltage Range
The TPS70928DBVT has a wide input voltage range, typically from 2.5V to 6V. This wide range allows it to be used with various power sources, such as batteries, power adapters, or other regulated power supplies. The output voltage of the TPS70928DBVT is fixed at 2.8V, which is a common voltage level required by many electronic components.
### 3.2 Output Current Capability
It can provide a maximum output current of up to 150mA. This makes it suitable for a variety of low - to - medium - power applications, such as small - scale embedded systems, sensor modules, and portable consumer electronics.
### 3.3 Package Type
The TPS70928DBVT
Images for reference
SOT-23-5, SC-74A
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