LT3080IDD#PBF

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The LT3080IDD#PBF is a low noise and low power linear voltage regulator that provides accurate regulation in a tiny form factor. The low power consumption and excellent thermal performance of the LT3080IDD#PBF make it an ideal solution for battery-powered and space-constrained applications including hotspot routers, gaming consoles, smart industrial devices and portable medical equipment.

The LT3080IDD#PBF features a low dropout (LDO) architecture and programmable current limit, allowing it to accurately regulate DC input voltage to either a fixed or adjustable output. The adjustable, low-noise output can be set as low as 0 V or as high as 5 V with a 200 mV typical dropout voltage. It supports load currents of up to 2 A, making it ideal for powering medium-to-large loads in a variety of applications. The low-power operation mode (LP) and standby current (<10 uA) help conserve battery life.

The LT3080IDD#PBF is rated over an extended operating temperature range of -40 to 135°C, making it suitable for extreme temperature environments. The device also features precision trim pins for simple output voltage adjustments. In addition, an overtemperature and short-circuit protection circuit is integrated to ensure safe operation. The LT3080IDD#PBF also features an excellent line and load transient response of less than 1 μs.

LT3080IDD#PBF offers low noise, low power consumption and great thermal performance, making it an ideal choice for a wide range of applications, including battery-powered and space-constrained designs. Its two operating modes (normal and low power), precision output voltage adjustment pins, integrated safety circuit and fast response time allows designers to create robust and efficient power regulation solutions. The extensive over-temperature range also ensures that the device is reliable in extreme environment conditions.

The LT3080IDD#PBF is a monolithic integrated circuit that is manufactured using high-volume, automotive-grade process technologies. As part of a linear voltage regulator Linear Technology’s GreenYield™ portfolio, it has been optimized to reduce PCB space requirements and extend battery life.

The LT3080IDD#PBF is a type of voltage regulator that uses linear techniques to regulate the output voltage. Linear voltage regulation techniques are based on the theory of “negative feedback” where a feedback control loop determines the difference between the regulator’s input and output voltages. When the regulated output voltage rises above the desired setting, the loop activity adjusts the device’s output to bring the output voltage back down to the setpoint. The active elements in the feedback loop are transistors that are used to provide local regulation of voltages and currents.

The operation of the LT3080IDD#PBF linear voltage regulator is based on the common emitter principle. When operated in the conventional mode, the output voltage is set by an external voltage divider and/or a feedback resistor connected to the regulator’s output. When the output voltage rises above the setpoint value, the transistor in the feedback loop is activated, which causes the output voltage to decrease. Similarly, if the output voltage drops below the reference voltage, the feedback loop causes the output voltage to rise back to the setpoint.

In the low-power operation mode, the output voltage is set with the programmable current limit pins. This mode reduces the standby current to less than 10uA. When the output voltage rises above the setpoint, the LT3080IDD#PBF activates its N-channel MOSFET transistor which pulls the voltage down. The reverse happens when the output voltage drops below the setpoint, the integrated N-channel MOSFET transistor is activated, which causes the output voltage to rise back to the setpoint.

The LT3080IDD#PBF is an ideal linear voltage regulator for low-noise, low-power and space-constrained applications. Its integrated over-temperature and short-circuit protection circuit ensures safe operation while the programmable current limit allows designers to create power efficient solutions. Additionally, its extended operating temperature range makes it suitable for applications in extreme temperature environments.

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