TPS7A4701
36V low-noise LDO voltage regulators for precise power management
Manufacturer： ti
series introduction
# TPS7A4701 Product Series Introduction
## 1. Overview
The TPS7A4701 product series is a high - performance, low - dropout (LDO) voltage regulator family developed by Texas Instruments. These regulators are designed to meet the demanding power requirements of a wide range of applications, offering excellent voltage regulation, low noise, and high power supply rejection ratio (PSRR).
## 2. Key Features
### 2.1 Low Dropout Voltage
The TPS7A4701 series features a very low dropout voltage. This means that it can maintain a stable output voltage even when the input - output voltage differential is small. For example, in battery - powered applications where the battery voltage gradually decreases over time, the low dropout characteristic ensures that the regulator can continue to provide a stable output voltage until the battery voltage drops to a very low level. This helps to extend the battery life and improve the overall efficiency of the system.
### 2.2 High Power Supply Rejection Ratio (PSRR)
With a high PSRR, the TPS7A4701 can effectively reject noise and ripple from the input power supply. In applications where the input power source may be noisy, such as in switch - mode power supply (SMPS) systems, the high PSRR of the regulator ensures that the output voltage remains clean and stable. This is crucial for sensitive analog and RF circuits, where even small amounts of noise can degrade the performance of the system.
### 2.3 Low Quiescent Current
The series has a low quiescent current, which is the current consumed by the regulator when there is no load or a very light load. This is an important feature for battery - powered devices, as it helps to reduce the overall power consumption and extend the battery life. Even in standby or sleep modes, the low quiescent current ensures that the device consumes minimal power.
### 2.4 Adjustable Output Voltage
The TPS7A4701 offers adjustable output voltage options. This flexibility allows designers to set the output voltage according to the specific requirements of their application. Whether it is powering a microcontroller, an analog sensor, or an RF transceiver, the adjustable output voltage feature enables the regulator to be customized for different power needs.
### 2.5 Thermal Protection
To prevent damage due to overheating, the TPS7A4701 series is equipped with thermal protection. When the temperature of the regulator exceeds a certain threshold, the thermal protection circuit will automatically reduce the output current or shut down the regulator to prevent further temperature rise. This ensures the reliability and longevity of the device, especially in high - power or high - temperature environments.
## 3. Applications
### 3.1 Portable Devices
In portable devices such as smartphones, tablets, and wearables, the TPS7A4701 series is an ideal choice for power management. Its low dropout voltage, low quiescent current, and high PSRR help to extend the battery life and provide a stable power supply for the sensitive components in these devices. For example, it can be used to power the CPU, memory, and sensors in a smartphone, ensuring their reliable operation.
### 3.2 Industrial Equipment
Industrial equipment often requires a stable and clean power supply to ensure accurate operation. The TPS7A4701 series can be used in industrial control systems, data acquisition systems, and instrumentation. Its high PSRR helps to reject the noise generated by the industrial power grid, while its adjustable output voltage allows it to be customized for different industrial components.
### 3.3 Automotive Electronics
In automotive applications, the TPS7A4701 series can be used to power various electronic systems, such as infotainment systems, advanced driver - assistance systems (ADAS), and engine control
Images for reference
TPS7A4701EVM-094
RGW-20-QFN Pkg
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