AS1363-BSTT-18

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The AS1363-BSTT-18 is a low-dropout linear voltage regulator manufactured by ams-OSRAM USA INC. It operates from an input voltage range of +2.0V to +5.5V and delivers a guaranteed 500mA load current with a typical dropout voltage of 150mV at full load. The device provides a factory-preset output voltage of 1.8V with high accuracy, specified within ±0.75% at +25°C for a 100mA load. Key electrical characteristics include a typical quiescent current of 40µA and a shutdown supply current of 30nA. It features integrated thermal overload protection and output current limiting.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Provides a fixed 1.8V output voltage via internal trimming
• Features a bypass pin to enhance power supply rejection ratio and noise performance
• Includes an active-low open-drain Power OK (POK) status indicator
• Integrates short-circuit and thermal shutdown protection mechanisms

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Portable battery-operated equipment
• Mobile phones
• Laptops and PDAs
• Cordless phones

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific ordering code AS1363-BSTT-18 against official manufacturer documentation to confirm the 1.8V preset output and SOT23-6 package configuration. Ensure compliance requirements such as RoHS are met for the intended application environment. Cross-reference datasheet revision 1.05 for accurate electrical parameters and capacitor selection guidelines before finalizing design integration.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a stable 1.8V rail is required for portable electronics with limited battery life. The low quiescent current makes it suitable for energy-efficient designs. Verify that the input voltage remains within the 2.0V to 5.5V range and that the load does not exceed 500mA. Consider the thermal dissipation capabilities in the SOT23 package if operating near maximum current limits or high ambient temperatures.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

The AS1363 series consists of low-dropout linear regulators designed for battery-powered applications. The BSTT suffix indicates tape and reel packaging. The -18 suffix denotes the specific 1.8V fixed output variant. This part belongs to a family offering various preset voltages and adjustable options, all sharing similar low-power architectures and protection features.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Consult official distributor databases for verified substitute part numbers. Do not assume functional equivalence based on generic specifications alone.