AS1367-BTDT-18

PMIC - Voltage Regulators - Linear

AS1367-BTDT-18 is a linear, low dropout (LDO) voltage regulator with a nominal output voltage of 3.3V, a maximum output current of 100mA, and a fixed output voltage tolerance of ± 5%. This device is intended for use in applications requiring low power consumption and low output voltages.

Application Field

The AS1367-BTDT-18 is well-suited for a wide variety of applications, including portable electronic devices, with its low quiescent current, short-circuit protection, current limit, low dropout voltage, improved ripple rejection, and stable voltage output. Specifically, AS1367-BTDT-18 is designed for use in devices that need a low noise level and accurate temperature compensation, such as portable telephones, PDAs, laptops, and other handheld devices.

Some typical applications of AS1367-BTDT-18 include powering processors, memory, audio amplifiers, and other sensitive devices requiring low noise levels and high accuracy. The fixed output voltage of the part makes it ideal for use in digital systems, as the part maintains a steady output voltage, regardless of input voltage.

Working Principle

The AS1367-BTDT-18 is a linear voltage regulator that contains a voltage reference, current-limiting circuitry, and external series resistor. It also includes a low offset, low-noise, pair-resistor divider, which provides temperature-compensated regulation.

The voltage reference is a band-gap reference that is designed for excellent temperature accuracy. This reference maintains the output voltage within a tight temperature range and ensures that the part will meet the specified output voltage tolerance. The current-limiting circuitry and external series resistor provide over-current protection, as well as supplying the part with a stable input voltage, even if the input voltage is not constant. The low-noise pair-resistor divider, as mentioned earlier, provides temperature-compensated regulation, while the low-dropout design reduces power dissipation and power dissipation at the output.

When the device is supplied with the exact voltage required by the load, the voltage reference maintains a steady output voltage. When the input voltage is lowered or raised, the device will adjust the output voltage to maintain a stable output voltage. As the AS1367-BTDT-18 is a low noise, low dropout linear voltage regulator, it is ideal for use in applications requiring low power consumption and high accuracy.