LT3061HMS8E#PBF

The LT3061HMS8E#PBF is an ideal linear voltage regulator that can be used in battery powered applications as well as in many other applications. It is a low dropout (LDO) regulator with a wide input voltage range of 1.8 V to 15 V, and a wide output voltage range from 0.8 V to 5 V. It is capable of delivering up to 400mA of output current and features low quiescent current.

Features

• Wide input voltage range: 1.8V to 15V
• Wide output voltage range: 0.8V to 5V
• Low dropout voltage: 40mV at 300mA
• Low quiescent current: 250uA
• Output current up to 400mA
• Over-Temperature, Over-Voltage and Short-Circuit Protection
• ESD protection up to 2kV

Applications

• Battery powered applications
• Portable devices and instruments
• Medical equipments
• Wireless communication equipments
• Computer peripherals
• Consumer electronic products

Working Principle

At its heart, the LT3061HMS8E#PBF is a low dropout (LDO) linear voltage regulator. The device works by connecting a pass element to the input voltage source, where a PMOS transistor functions as the pass element. The voltage at the output is controlled by a feedback circuit comprising a resistor divider network, connected to an error amplifier, which compares the output voltage to a reference voltage. Any difference between the output voltage and the reference voltage is amplified by the error amplifier and then fed to the pass transistor, adjusting the output voltage. In addition to the feedback circuit, the device also features an over-temperature protection, over-voltage protection and short-circuit protection.

Conclusion

LT3061HMS8E#PBF is a low dropout linear voltage regulator that offers a wide input voltage range and wide output voltage range, capable of delivering up to 400mA of output current and features low quiescent current. It is suitable for various battery powered applications, portable devices and instruments, medical equipments, wireless communication equipments, computer peripherals and consumer electronic products. The voltage regulation circuit comprises a PMOS pass element, resistor divider network, error amplifier and various protection circuits.