Overview
The TPS76833QD is a 1-A, 10-V, low-dropout voltage regulator produced by Texas Instruments. This device is part of the TPS768 family, known for its fast transient response and stability with 10 µF capacitors, providing high performance at a reasonable cost. The TPS76833QD is available in an 8-pin SOIC (D) package and is designed for use in a variety of applications requiring efficient voltage regulation.
Key Specifications
| Specification | Value |
|---|---|
| Input Voltage Range | 2.7 V to 10 V |
| Output Current | Up to 1 A |
| Output Voltage | Fixed: 3.3 V (for TPS76833); Adjustable: 1.2 V to 5.5 V |
| Dropout Voltage | Typically 230 mV at 1 A (TPS76850), 350 mV at 1 A for TPS76833 |
| Quiescent Current | Typically 85 µA |
| Output Voltage Tolerance | 2% over specified conditions |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | SOIC-8 (D) |
| Thermal Shutdown Junction Temperature | 150°C |
| Power Good (PG) Output | Active high output |
Key Features
- Fast transient response and stability with 10 µF capacitors.
- Low-dropout voltage: typically 230 mV at 1 A for the TPS76850 and 350 mV for the TPS76833.
- Ultralow quiescent current: typically 85 µA.
- Available in fixed output voltages (1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V, 5.0 V) and adjustable output (1.2 V to 5.5 V).
- Open drain power good (PG) output for power-on reset or low-battery indicator.
- Thermal shutdown protection.
- Shutdown mode: applying a TTL high signal to EN (enable) reduces quiescent current to less than 1 µA.
Applications
The TPS76833QD is suitable for a variety of applications, including:
- Battery-powered systems, where low quiescent current and low dropout voltage are crucial for extended battery life.
- Portable electronics, such as handheld devices and mobile phones.
- Industrial control systems requiring stable and efficient voltage regulation.
- Automotive systems, where the device's wide operating temperature range is beneficial.
- Consumer electronics, such as set-top boxes and gaming consoles, that require reliable power management.
Q & A
- What is the input voltage range of the TPS76833QD?
The input voltage range is from 2.7 V to 10 V.
- What is the typical dropout voltage of the TPS76833QD at 1 A output current?
The typical dropout voltage is 350 mV at 1 A output current.
- What is the quiescent current of the TPS76833QD?
The quiescent current is typically 85 µA.
- What are the available output voltage options for the TPS768 family?
The TPS768 family offers fixed output voltages (1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V, 5.0 V) and an adjustable output (1.2 V to 5.5 V).
- What is the purpose of the power good (PG) output?
The power good (PG) output is an active high signal that can be used to implement a power-on reset or a low-battery indicator.
- How does the shutdown mode work on the TPS76833QD?
Applying a TTL high signal to the EN (enable) pin shuts down the regulator, reducing the quiescent current to less than 1 µA.
- What is the thermal shutdown junction temperature of the TPS76833QD?
The thermal shutdown junction temperature is 150°C.
- What is the operating temperature range of the TPS76833QD?
The operating temperature range is -40°C to 125°C.
- What type of package is the TPS76833QD available in?
The TPS76833QD is available in an 8-pin SOIC (D) package.
- What are some typical applications for the TPS76833QD?
Typical applications include battery-powered systems, portable electronics, industrial control systems, automotive systems, and consumer electronics.
