Overview
The TPS76733QPWPR is a 1-A, 10-V, low-dropout voltage regulator produced by Texas Instruments. This device is part of the TPS767 family, known for its fast transient response and stability with 10 µF low ESR capacitors, providing high performance at a reasonable cost. The regulator is designed to operate with a very low dropout voltage and ultralow quiescent current, making it suitable for battery-powered systems. It features an open-drain power-on reset with a 200-ms delay and thermal shutdown protection, enhancing its reliability and safety in various applications.
Key Specifications
| Parameter | Value |
|---|---|
| Output Voltage | 3.3 V (Fixed) |
| Output Current | 1 A |
| Dropout Voltage | Down to 230 mV at 1 A |
| Quiescent Current | Typically 85 µA |
| Output Voltage Tolerance | 2% over line, load, and temperature |
| Package Type | 20-Pin HTSSOP (PWP) with Exposed Pad |
| Operating Temperature Range | -40°C to 125°C |
| Thermal Shutdown Junction Temperature | 125°C |
Key Features
- Fast transient response and stability with 10 µF low ESR capacitors
- Low dropout voltage down to 230 mV at 1 A
- Ultralow quiescent current of typically 85 µA
- 2% output voltage tolerance over specified conditions
- Open-drain power-on reset with 200-ms delay
- Thermal shutdown protection
- Sleep mode with quiescent current reduced to 1 µA at TJ = 25°C
- Available in 8-pin SOIC and 20-pin TSSOP PowerPAD™ (PWP) packages
Applications
The TPS76733QPWPR is suitable for a variety of applications, including:
- Battery-powered systems where low dropout voltage and low quiescent current are crucial for extended battery life.
- Microcomputer and microprocessor systems that require a stable and reliable voltage supply with power-on reset capabilities.
- Industrial and automotive systems that need robust thermal shutdown protection and a wide operating temperature range.
- Portable electronics and handheld devices where space and power efficiency are important.
Q & A
- What is the output voltage of the TPS76733QPWPR?
The output voltage of the TPS76733QPWPR is 3.3 V (fixed).
- What is the maximum output current of the TPS76733QPWPR?
The maximum output current is 1 A.
- What is the typical dropout voltage of the TPS76733QPWPR at 1 A output current?
The typical dropout voltage is down to 230 mV at 1 A output current.
- What is the typical quiescent current of the TPS76733QPWPR?
The typical quiescent current is 85 µA.
- What is the output voltage tolerance of the TPS76733QPWPR?
The output voltage tolerance is 2% over line, load, and temperature.
- What package types are available for the TPS76733QPWPR?
The device is available in 20-Pin HTSSOP (PWP) with Exposed Pad.
- What is the operating temperature range of the TPS76733QPWPR?
The operating temperature range is -40°C to 125°C.
- Does the TPS76733QPWPR have thermal shutdown protection?
Yes, it features thermal shutdown protection with a junction temperature of 125°C.
- How does the sleep mode work on the TPS76733QPWPR?
Applying a TTL high signal to the EN (enable) pin shuts down the regulator, reducing the quiescent current to 1 µA at TJ = 25°C.
- What is the purpose of the power-on reset feature in the TPS76733QPWPR?
The power-on reset feature initiates a reset in microcomputer and microprocessor systems in the event of an undervoltage condition, with a 200-ms delay.
