Overview
The TPS76818QDR 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 provide high performance at a reasonable cost. It features a fast transient response and is stable with 10 µF capacitors, making it suitable for a variety of applications, especially in battery-powered systems. The regulator includes power good and enable functions, enhancing its versatility and reliability.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.7 V to 10 V |
| Output Voltage | Fixed (1.8 V for TPS76818QDR) and Adjustable (1.2 V to 5.5 V) |
| Output Current | Up to 1 A |
| Dropout Voltage | Typically 230 mV at 1 A |
| Quiescent Current | Typically 85 µA |
| Package Type | SOIC-8 (D) |
| Pins | 8 |
| Operating Temperature Range | -40°C to 125°C |
Key Features
- Low-Dropout Voltage: Typically 230 mV at 1 A
- Ultralow Quiescent Current: Typically 85 µA
- Fast Transient Response
- Thermal Shutdown Protection
- Open Drain Power Good (PG) Output
- Enable (EN) Function for Shutdown Mode
- Available in Fixed and Adjustable Output Versions
- Stable with 10 µF Capacitors
Applications
The TPS76818QDR is suitable for various applications, including:
- 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 and reliable voltage regulation is crucial.
- Automotive Systems: For applications requiring robust and efficient voltage regulation.
- Medical Devices: Where precise voltage control and low power consumption are essential.
Q & A
- What is the input voltage range of the TPS76818QDR?
The input voltage range is from 2.7 V to 10 V.
- What is the typical dropout voltage of the TPS76818QDR?
The typical dropout voltage is 230 mV at an output current of 1 A.
- What is the quiescent current of the TPS76818QDR?
The quiescent current is typically 85 µA.
- What package types are available for the TPS76818QDR?
The device is available in SOIC-8 (D) and TSSOP-20 (PWP) packages.
- Does the TPS76818QDR have thermal shutdown protection?
- How does the enable function work on the TPS76818QDR?
J = 25°C. - 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.
- What is the operating temperature range of the TPS76818QDR?
The operating temperature range is from -40°C to 125°C.
- Is the TPS76818QDR stable with small capacitors?
- What are some typical applications for the TPS76818QDR?
