AS1370-ATDT-28

The AS1370-ATDT-28 is an adjustable linear voltage regulator designed for use in consumer electronic applications such as cameras, cell phones, and low-power embedded systems. It is a low-dropout (LDO) regulator with an adjustable output voltage from 0.8V to 6V and a maximum output current of 28mA. The AS1370-ATDT-28 is a three-terminal regulator, with an input pin, an output pin, and a regulation adjust pin. The output voltage can be adjusted by changing the voltage on the ADJ pin.

Features of the AS1370-ATDT-28 Voltage Regulator

• Wide input voltage range: 0.9V to 16V
• Output voltage adjustable: 0.8V to 6V
• High output current: up to 28mA
• Driver capability up to 10MHz
• Low output noise: < 30µV
• Ultra-low dropout voltage: 0.12V @ 28mA
• Over-temperature protection
• Over-current protection

Application Fields of the AS1370-ATDT-28 Voltage Regulator

The AS1370-ATDT-28 has a wide range of applications in consumer electronics and embedded systems. Its drives signals up to 10MHz and its low-noise operation makes it well suited for powering high-precision analog components. Its low-dropout voltage and high output current capability also make it ideal for powering digital components, particularly in applications where the power supply voltage is lower than the input voltage.

It is commonly used for battery-powered applications where a low input voltage is required, such as cameras and cell phones. Additionally, its adjustable output voltage and the ability to operate from a wide input voltage range makes it suitable for powering USB ports and other applications where adjustable voltages are needed.

Working Principle of the AS1370-ATDT-28 Voltage Regulator

The AS1370-ATDT-28 linear voltage regulator is a three-terminal regulator that operates by comparing an adjustable voltage reference and the input voltage. When the input voltage is larger than the adjustable reference, the regulator operates in a ‘regulator mode,’ maintaining a constant output voltage by controlling the amount of current through an internal pass transistor. When the input voltage is lower than the adjustable reference, the pass transistor is shut off and the regulator stops regulating, and the output voltage drops to the input voltage. The adjustable reference voltage is set by an external resistor connected to the ADJ pin. By changing the value of the resistor, the output voltage can be easily adjusted.

Conclusion

The AS1370-ATDT-28 is a three-terminal adjustable linear voltage regulator designed for use in consumer electronic and embedded systems applications. Its wide range of features—including adjustable output voltage, low dropout voltage, high output current, and low output noise—make it suitable for a variety of applications. It is commonly used for battery-powered applications where a low input voltage is required, such as cameras and cell phones.