AS1359-BTTT-26

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

The AS1359-BTTT-26 is a low-dropout linear regulator delivering a fixed 2.6V output with a maximum continuous current of 300mA. It operates from an input voltage range of 2V to 5.5V and achieves a dropout voltage as low as 140mV at full load. The device features ultra-low output noise of 9µVRMS and high power-supply rejection ratio exceeding 80dB up to 10kHz. Quiescent current is maintained at 40µA, dropping below 500nA in shutdown mode. It utilizes a P-channel MOSFET pass transistor and requires only a 1µF ceramic capacitor for stability.

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

• Ultra-low noise architecture achieving 9µVRMS output noise
• High power-supply rejection ratio exceeding 80dB across frequency ranges
• Integrated P-channel MOSFET pass transistor for extended battery life
• Low quiescent current consumption with deep shutdown capability

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

• Mobile phones and wireless phones
• Bluetooth portable radios and accessories
• Digital cameras and personal audio devices
• Wireless LANs and handheld computers

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

Verify the specific ordering code AS1359-BTTT-26 against manufacturer documentation to confirm the 2.6V preset output and 300mA load rating. Ensure compatibility with TSOT23 5-pin surface mount requirements. Confirm RoHS compliance status prior to integration into final assembly processes.

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

Select this component when applications require stable regulation under varying loads with minimal power loss. The low dropout characteristic supports operation near end-of-life battery voltages. The integrated thermal protection and current limiting provide robustness against fault conditions without external circuitry.

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

This part belongs to the AS1358/AS1359 series of ultra-low-noise LDOs designed for space-limited portable electronics. The AS1359 variant specifically provides higher current capacity compared to the AS1358. Both share identical pinouts and architectural features, differing primarily in maximum output current specifications.

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

Direct functional substitutes within the same family include AS1359-BTTT-25 (2.5V) or AS1359-BTTT-27 (2.7V). Cross-family replacements must match the 300mA current rating, TSOT23-5 package, and low-noise requirements.