Overview
The LT3080EQ#TRPBF is a 1.1A low dropout linear regulator (LDO) produced by Analog Devices Inc. This device is part of the LT3080 family and is known for its high performance and versatility. It can be used in a variety of applications requiring stable voltage regulation and can be paralleled to increase output current or to spread heat in surface-mounted boards. The LT3080EQ#TRPBF is available in a 5-lead Plastic DD-Pak package and operates over a temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Output Current | - | 1.1 | - | A |
| Output Voltage Accuracy | - | 1% | - | - |
| Input Voltage Range | - | - | 40 | V |
| Dropout Voltage | - | - | 300 mV (typical at 1.1A) | mV |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Type | - | - | 5-Lead Plastic DD-Pak | - |
Key Features
- Adjustable output voltage set by a single external resistor.
- Low dropout voltage, typically 300 mV at 1.1A.
- High accuracy output voltage with a tolerance of 1%.
- Parallel operation capability to increase output current or spread heat.
- Thermal management without heat sinks, especially useful in surface-mounted boards.
- Precision 10µA internal current source for setting the output voltage.
- Low impedance buffered output.
- Indefinite short-circuit protection.
Applications
The LT3080EQ#TRPBF is suitable for a wide range of applications, including:
- Multiple rail power supplies where adjustable voltage regulation is necessary.
- Modern low-voltage digital ICs requiring stable and adjustable voltage supplies.
- Systems needing thermal management without the use of heat sinks.
- Automotive and industrial applications requiring high reliability and wide operating temperature ranges.
Q & A
- What is the maximum output current of the LT3080EQ#TRPBF?
The maximum output current is 1.1A. - What is the typical dropout voltage of the LT3080EQ#TRPBF at full load?
The typical dropout voltage at 1.1A is 300 mV. - How is the output voltage set for the LT3080EQ#TRPBF?
The output voltage is set by a single external resistor connected to the noninverting input of the internal operational amplifier. - Can the LT3080EQ#TRPBF be paralleled to increase output current?
Yes, the LT3080EQ#TRPBF can be paralleled to increase output current or to spread heat in surface-mounted boards. - What is the operating temperature range of the LT3080EQ#TRPBF?
The operating temperature range is –40°C to 125°C. - What package type is the LT3080EQ#TRPBF available in?
The LT3080EQ#TRPBF is available in a 5-Lead Plastic DD-Pak package. - Does the LT3080EQ#TRPBF have short-circuit protection?
Yes, it has indefinite short-circuit protection. - What is the accuracy of the output voltage for the LT3080EQ#TRPBF?
The output voltage accuracy is 1%. - Can the LT3080EQ#TRPBF be used in automotive applications?
Yes, but specific automotive-grade models should be used for such applications. - How does the LT3080EQ#TRPBF manage heat in surface-mounted boards?
The LT3080EQ#TRPBF can be paralleled and external resistors can be used to spread the heat, eliminating the need for heat sinks.
