LT1764AET#30PBF

The LT1764AET#30PBF linear voltage regulator provides a wide range of output voltages, adjustable from 1.235 to 28 volts. It is ideally suited for applications requiring low quiescent current and high-power output. The device features a wide operating range, low dropout voltage, current limit protection, and over-temperature and over-voltage protection. The LT1764AET can supply up to 1.5A of output current and is available in a wide range of packages and either lead (SnPb) or lead-free (RoHS compliant).

LT1764AET#30PBF Application Field

The LT1764AET#30PBF is a linear voltage regulator that is ideally suited for use in applications requiring low quiescent current and high-power output. Its low dropout voltage and adjustable output make it an ideal choice for power supply design for applications such as medical electronics, cellular base station amplifiers, and automobile body computer systems. The LT1764AET#30PBF is also suitable for switch-mode power-on reset and battery monitoring applications.

LT1764AET#30PBF Working Principle

The LT1764AET#30PBF works by using a linear voltage regulator to supply a smooth output voltage. It has an input voltage range of 4 to 40 V and an adjustable output voltage range of 1.235 to 28 V. The device combines the advantages of low dropout regulators and low-cost, fixed-output regulators. As the input rises, the output voltage rises until it reaches the minimum dropout voltage limit and the device enters a low-quiescent current mode. At this point, the load current is limited to approximately 150 mA.

The LT1764AET#30PBF can operate in both linear and switched-mode modes. When operating in linear mode, the device uses an internal bandgap reference and a pair of transistors to control the output voltage. The switching mode is enabled when the voltage at the output node rises above the minimum dropout voltage limit. At this point, the device enters a switching mode and operates with a low input-to-output quiescent current, allowing it to achieve high efficiencies at low output currents. The device is protected against over-temperature and over-voltage conditions, and it has built-in current limit protection.

Conclusion

The LT1764AET#30PBF is a linear voltage regulator that can provide a wide range of output voltages, adjustable from 1.235 to 28 V. It is ideal for use in applications requiring low quiescent current and high-power output. The device has a wide operating range, low dropout voltage, current limit protection, and over-temperature and over-voltage protection. It can operate in both linear and switched-mode modes and is protected against over-temperature and over-voltage conditions. The LT1764AET#30PBF is available in a wide range of packages and either lead (SnPb) or lead-free (RoHS compliant).