The AS1363 is a low-dropout linear regulator that operates from a +2.0V to +5.5V supply and delivers a guaranteed 500mA load current with low 150mV dropout.
The device is available in two versions. One version has a high-accuracy output with a preset voltage (1.5V, 1.8V, 3.0V, 3.3V, or 4.5V). This voltage is internally trimmed and also offers a Bypass pin. With a capacitor connected to this Bypass pin, the PSRR and the Noise performance is improved.
| Model | Output Type | BYP | SET |
| AS1363-BSTT-AD | Adjustable | NO | YES |
| AS1363-BSTT-_ _ | Fixed | YES | NO |
At the other version the output voltage is user-adjustable (1.2V to 5.3V) and offers an SET pin for setting the output voltage.
A low supply current (65μA typ.) at maximum load is making the device ideal for portable battery-operated equipment.
Other features are included such as an active-low open-drain reset output that indicates when the output is out of regulation, a low-current (30nA typ.) shutdown mode, an integrated short-circuit and a thermal shutdown protection.
The AS1363 is available in a 6-pin SOT23 package.
The device is ideal for laptops, PDAs, portable audio devices, mobile phones, cordless phones, and any other battery-operated portable device as well as µC or µP supply.
AS1363 500mA Low-Dropout,Low Noise Regulator Block Diagram
