TPS76801QD
Adjustable micropower LDO voltage regulators for efficient power management
Manufacturer： ti
series introduction
# TPS76801QD Product Series Introduction
## 1. Overview
The TPS76801QD belongs to a high - performance product series of low - dropout (LDO) voltage regulators. Texas Instruments, a renowned semiconductor company, designs and manufactures this series. These regulators are engineered to provide stable and precise voltage outputs, making them suitable for a wide range of applications where reliable power management is crucial.
## 2. Key Features
### 2.1 Low Dropout Voltage
One of the standout features of the TPS76801QD series is its low dropout voltage. Dropout voltage is the minimum voltage difference between the input and output voltages required for the regulator to maintain a stable output. With a low dropout voltage, these regulators can operate efficiently even when the input voltage is only slightly higher than the desired output voltage. This is particularly beneficial in battery - powered applications, as it allows for longer battery life by reducing power dissipation.
### 2.2 High Output Voltage Accuracy
The TPS76801QD offers high output voltage accuracy. It can maintain the output voltage within a very tight tolerance, typically within a few percentage points of the nominal value. This high accuracy is essential in applications such as precision analog circuits, where even small variations in voltage can lead to significant errors in signal processing.
### 2.3 Low Quiescent Current
Quiescent current is the current consumed by the regulator when there is no load connected. The TPS76801QD series has a low quiescent current, which means it consumes very little power in standby or low - load conditions. This feature is highly desirable in battery - operated devices, as it helps to conserve battery energy and extend the device's operating time.
### 2.4 Thermal Shutdown and Current Limit Protection
To ensure the reliability and safety of the regulator, the TPS76801QD is equipped with thermal shutdown and current limit protection mechanisms. The thermal shutdown feature automatically turns off the regulator when the temperature exceeds a certain threshold, preventing damage due to overheating. The current limit protection restricts the output current to a safe level, protecting the regulator and the connected load from excessive current flow.
### 2.5 Adjustable Output Voltage
Some models in the TPS76801QD series offer adjustable output voltage. This allows designers to set the output voltage according to the specific requirements of their application. By using external resistors, the output voltage can be easily adjusted within a specified range, providing flexibility in power supply design.
## 3. Applications
### 3.1 Portable Electronic Devices
The low dropout voltage, low quiescent current, and high output voltage accuracy of the TPS76801QD make it an ideal choice for portable electronic devices such as smartphones, tablets, and wearable devices. These devices rely on battery power, and the efficient power management provided by the TPS76801QD helps to extend battery life and ensure stable operation.
### 3.2 Industrial Control Systems
In industrial control systems, precise and stable power supplies are essential for the proper functioning of sensors, actuators, and microcontrollers. The TPS76801QD's high output voltage accuracy and protection features make it suitable for use in these systems, where reliability and performance are critical.
### 3.3 Automotive Electronics
Automotive electronics require power supplies that can operate in harsh environments with wide temperature ranges and high levels of electrical noise. The TPS76801QD series is designed to meet these requirements, with features such as thermal shutdown and current limit protection ensuring reliable operation in automotive applications. It can be used in various automotive subsystems, including infotainment systems, engine control units, and sensor modules.
### 3.4 Medical Devices
Medical devices demand high - quality power
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