AS1352_7BC0-T

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

The AS1352_7BC0-T is a factory-trimmed quad low-dropout voltage regulator in a 12-pin QFN 4x4 package. It provides four independent outputs: VOUT1 at 2.5V, VOUT2 at 2.9V, VOUT3 at 3.0V, and VOUT4 at 1.8V. The device operates with a supply voltage range of 3 to 5.5V and delivers up to 200mA per channel. Key electrical characteristics include a dropout voltage of 0.2V at full load, output voltage accuracy of ±2%, and power supply rejection ratio of 70dB at 1kHz. It features low noise (40µVrms), thermal protection, over-current protection, and soft-start functionality.

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

• Four independent LDO channels with fixed factory-programmed output voltages
• Low-noise performance suitable for direct connection to sensitive circuits
• Integrated thermal and over-current protection mechanisms
• Soft-start control to minimize inrush current during startup

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

• Mobile phones and PDAs
• MP3 players and digital cameras
• Cordless phones and handheld computers
• CD and DVD players

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

Verify the specific suffix '7BC0' confirms the factory-trimmed voltage configuration (2.5V, 2.9V, 3.0V, 1.8V). Ensure the package type matches the design requirement, as this part number corresponds to the 12-pin QFN 4x4 variant. Confirm compatibility with existing PCB footprints and thermal management strategies before finalizing procurement.

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

Select this component when multiple regulated rails are required from a single battery source in space-constrained mobile devices. The fixed output voltages eliminate the need for external programming hardware or one-time programmable burning steps. Consider the 12-pin QFN package for compact designs where thermal dissipation requirements align with the package's capabilities.

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

The AS1352 series consists of high-performance quad CMOS low-dropout regulators designed for battery-powered applications. The manufacturer, originally austriamicrosystems AG, is now ams AG. The technical content remains valid under the new corporate identity. This specific model represents a pre-configured version optimized for rapid prototyping and mass production without custom programming.

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

Cross-reference tools may suggest compatible quad LDOs from other manufacturers. Verify pinout compatibility, especially regarding the exposed pad ground connection. Ensure replacement parts support the same output voltage configurations or can be externally adjusted if necessary.