Overview
The TPS75701KTTTG3 is a part of the TPS757xx family of low dropout (LDO) voltage regulators manufactured by Texas Instruments. This specific model is an adjustable LDO regulator, offering a high degree of flexibility in voltage regulation. The TPS75701 is designed to provide a stable output voltage that can be adjusted from 1.22 V to 5 V using an external resistor divider. This regulator is particularly useful in applications requiring precise voltage control and high current output.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Output Voltage Range | 1.22 V to 5 V | Adjustable via external resistor divider |
| Maximum Output Current | 3 A | |
| Dropout Voltage | Typically 0.5 V at 3 A | |
| Power Supply Ripple Rejection (PSRR) | 62 dB at 100 Hz | VI = 2.8 V, IO = 3 A, TJ = 25°C |
| Thermal Shutdown Junction Temperature | 150 °C | |
| Standby Current | 0.1 µA (EN = VI, TJ = 25°C) | |
| Enable (EN) Input Logic | Logic high for shutdown, logic low for enable | |
| Power-Good (PG) Output | Open drain, active low | Indicates output voltage status |
Key Features
- Adjustable Output Voltage: The output voltage can be adjusted from 1.22 V to 5 V using an external resistor divider, providing flexibility in various applications.
- High Output Current: Capable of delivering up to 3 A of output current, making it suitable for power-hungry devices.
- Low Dropout Voltage: A dropout voltage of typically 0.5 V at 3 A ensures efficient use of input power.
- Power Supply Ripple Rejection (PSRR): High PSRR of 62 dB at 100 Hz helps in maintaining a stable output voltage despite input voltage fluctuations.
- Thermal and Overcurrent Protection: Features thermal shutdown and overcurrent protection to safeguard the regulator and connected circuitry.
- Enable and Power-Good Functions: Includes an enable input for power management and a power-good output to indicate the status of the output voltage.
Applications
The TPS75701KTTTG3 is suitable for a wide range of applications that require adjustable and stable voltage regulation. These include:
- Industrial equipment and control systems.
- Telecommunications and networking devices.
- Consumer electronics such as audio and video equipment.
- Automotive electronics requiring reliable voltage regulation.
- General-purpose power supply systems where adjustable voltage is necessary.
Q & A
- What is the output voltage range of the TPS75701KTTTG3?
The output voltage can be adjusted from 1.22 V to 5 V using an external resistor divider.
- What is the maximum output current of the TPS75701KTTTG3?
The maximum output current is 3 A.
- What is the typical dropout voltage of the TPS75701KTTTG3 at full load?
The typical dropout voltage is 0.5 V at 3 A.
- How does the enable (EN) input function on the TPS75701KTTTG3?
The EN input is logic high for shutdown and logic low for enable.
- What is the purpose of the power-good (PG) output on the TPS75701KTTTG3?
The PG output is an open drain, active low signal that indicates the status of the output voltage.
- What protection features does the TPS75701KTTTG3 have?
The regulator features thermal shutdown and overcurrent protection.
- What is the operating temperature range of the TPS75701KTTTG3?
The operating temperature range is from -40°C to 125°C.
- How does the power supply ripple rejection (PSRR) of the TPS75701KTTTG3 help in its operation?
The high PSRR of 62 dB at 100 Hz helps in maintaining a stable output voltage despite input voltage fluctuations.
- What are some common applications of the TPS75701KTTTG3?
Common applications include industrial equipment, telecommunications, consumer electronics, and automotive electronics.
- Is the TPS75701KTTTG3 RoHS-compliant?
Yes, the TPS75701KTTTG3 is RoHS-compliant, ensuring safety for the environment and end-users.
