Overview
The TPS76833QDR is a 1-A, 10-V low-dropout voltage regulator produced by Texas Instruments. This device is part of the TPS768 family and is designed to offer high performance with a fast transient response and low quiescent current, making it suitable for a variety of applications, especially in battery-powered systems. The regulator is available in a SOIC-8 (D) package and features an open-drain power good output and an enable input for shutdown control.
Key Specifications
| Specification | Value |
|---|---|
| Input Voltage Range | 2.7 V to 10 V |
| Output Current | 1 A |
| Output Voltage | Fixed 3.3 V |
| Dropout Voltage | Typically 230 mV at 1 A |
| Quiescent Current | Typically 85 µA |
| Package | SOIC-8 (D) |
| Operating Temperature Range | -40°C to 125°C |
| Power Good Output | Active High |
| Enable Input | TTL High for Shutdown |
Key Features
- Fast Transient Response
- Low-Dropout Voltage: Typically 230 mV at 1 A
- Ultralow Quiescent Current: Typically 85 µA
- 2% Tolerance Over Specified Conditions for Fixed-Output Versions
- Open Drain Power Good Output
- Enable Input for Shutdown Control
- Thermal Shutdown Protection
- Stable with 10 µF Capacitors
Applications
The TPS76833QDR is suitable for various applications requiring a stable and efficient voltage regulation. These include:
- Battery-Powered Systems: The low quiescent current and low dropout voltage make it ideal for extending battery life.
- Portable Electronics: Such as handheld devices, smartphones, and tablets.
- Industrial Control Systems: Where stable voltage regulation is crucial.
- Automotive Systems: For applications requiring robust and reliable voltage regulation.
Q & A
- What is the input voltage range of the TPS76833QDR?
The input voltage range is from 2.7 V to 10 V. - What is the typical dropout voltage of the TPS76833QDR at 1 A output current?
The typical dropout voltage is 230 mV at 1 A output current. - What is the quiescent current of the TPS76833QDR?
The quiescent current is typically 85 µA. - What package options are available for the TPS76833QDR?
The TPS76833QDR is available in a SOIC-8 (D) package. - What is the operating temperature range of the TPS76833QDR?
The operating temperature range is from -40°C to 125°C. - Does the TPS76833QDR have thermal shutdown protection?
Yes, the TPS76833QDR features thermal shutdown protection. - How does the enable input work on the TPS76833QDR?
Applying a TTL high signal to the enable input shuts down the regulator, reducing the quiescent current to less than 1 µA at TJ = 25°C. - What is the purpose of the power good output on the TPS76833QDR?
The power good output is an active high output that can be used to implement a power-on reset or a low-battery indicator. - Is the TPS76833QDR stable with small capacitors?
Yes, the TPS76833QDR is stable with 10 µF capacitors. - What are some common applications for the TPS76833QDR?
Common applications include battery-powered systems, portable electronics, industrial control systems, and automotive systems.
