AS1375-BTDT-33

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

The AS1375-BTDT-33 is a low-power, positive voltage regulator designed to deliver up to 200mA of output current while consuming only 1µA (typ.) of quiescent current. It provides a fixed 3.3V output with ±1% accuracy and operates within an input voltage range of 2V to 5.5V. The device features a very low dropout voltage of 120mV at full load and includes integrated short-circuit, overcurrent, and thermal protection. Qualified for operation between -40°C and +85°C, it is housed in a compact 6-pin TDFN 2x2mm package.

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

• Ultra-low power consumption with 1µA typical quiescent current and 10nA shutdown current
• Integrated protection mechanisms including overcurrent limiting, thermal shutdown, and under-voltage lockout
• High precision regulation with ±1% output voltage accuracy and minimal external component requirements

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

• Wireless handsets and smartphones
• Personal Digital Assistants (PDAs)
• MP3 players and other battery-operated handheld devices

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

Verify the specific ordering code AS1375-BTDT-33 against official manufacturer documentation to confirm the 3.3V fixed output variant. Ensure compatibility with the required 6-pin TDFN 2x2mm surface-mount package and check for any recent product change notices or end-of-life announcements from austriamicrosystems AG prior to finalizing procurement plans.

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

Select this component for space-constrained applications requiring high efficiency and minimal standby drain. The P-channel MOSFET pass transistor design ensures low dropout performance, extending battery life in portable electronics. Verify that the maximum power dissipation limits are not exceeded given the small package size and potential ambient temperature conditions.

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

The AS1375 series consists of low-quiescent current linear regulators specifically engineered for portable consumer electronics. Manufactured by austriamicrosystems AG, these devices utilize a bandgap reference and error amplifier architecture to maintain stable output voltages. The BTDT suffix indicates the tape and reel delivery form factor suitable for automated surface-mount assembly processes.

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

Consult official datasheets for direct pin-compatible alternatives within the AS1375 family offering different fixed output voltages. Cross-reference specifications such as quiescent current, dropout voltage, and package dimensions when evaluating third-party replacements to ensure functional equivalence in existing designs.

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

What is the typical quiescent current of the AS1375-BTDT-33?

The typical quiescent current is 1µA, which helps prolong battery life in portable devices.

How does the device handle thermal overload conditions?

Integrated thermal protection shuts down the device when the junction temperature reaches 160°C and restarts after cooling by 20°C.

What is the minimum input voltage required for operation?

The device operates with an input voltage range from 2V to 5.5V.