TPS79912DDCR
Low dropout linear regulators with 200mA output and 1.2V fixed voltage
Manufacturer： ti
series introduction
# TPS79912DDCR Product Series Introduction
## 1. Overview
The TPS79912DDCR is a part of Texas Instruments' high - performance voltage regulator product series. Voltage regulators are crucial components in electronic circuits as they ensure a stable and reliable power supply to various electronic devices. The TPS79912DDCR is specifically designed to meet the demanding requirements of modern electronic systems, offering precise voltage regulation, low dropout voltage, and excellent noise performance.
## 2. Key Features
### 2.1 Voltage Regulation Precision
- The TPS79912DDCR provides an output voltage of 1.2V with high accuracy. It can maintain a tight tolerance on the output voltage, typically within a very small percentage (e.g., ±1% or better in many operating conditions). This high precision is essential for applications where sensitive components require a stable and well - defined power supply. For example, in microcontroller - based systems, a stable 1.2V supply is necessary for the proper operation of the internal logic circuits and memory elements.
### 2.2 Low Dropout Voltage
- One of the significant features of this voltage regulator 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 proper regulation. The TPS79912DDCR has a low dropout voltage, which means it can operate efficiently even when the input voltage is only slightly higher than the output voltage. This is particularly useful in battery - powered applications, where the battery voltage gradually decreases over time. With a low dropout voltage, the regulator can continue to provide a stable 1.2V output for a longer period as the battery discharges.
### 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 TPS79912DDCR has a low quiescent current, which helps to conserve power in battery - operated devices. In standby or sleep modes, where the load current is minimal, the low quiescent current ensures that the battery is not drained unnecessarily, thereby extending the battery life of the device.
### 2.4 Excellent Noise Performance
- In many electronic systems, especially those involving sensitive analog circuits or high - speed digital interfaces, low noise in the power supply is crucial. The TPS79912DDCR is designed to have low output noise, which helps to reduce interference and improve the overall performance of the connected components. For example, in audio systems, a low - noise power supply can prevent audible noise and distortion in the audio signal.
### 2.5 Thermal Protection
- The device is equipped with thermal protection circuitry. In case the temperature of the regulator exceeds a certain threshold due to high power dissipation or other factors, the thermal protection mechanism will automatically reduce the output current or shut down the regulator to prevent damage. This feature enhances the reliability and safety of the regulator in various operating conditions.
## 3. Package and Pin Configuration
- The TPS79912DDCR comes in a small - outline package, such as the SOT - 23 package. The SOT - 23 package is a popular choice for surface - mount applications due to its small size and ease of integration onto printed circuit boards (PCBs).
- The pin configuration of the TPS79912DDCR is designed for straightforward connection. It typically has pins for input voltage (VIN), output voltage (VOUT), ground (GND), and may also have additional pins for enable control (EN) if applicable. The clear pin layout simplifies the PCB design process and reduces the chances of wiring errors.
## 4. Applications
### 4.
Images for reference
TSOT-23-5
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