AS1355-BQFT-WWD2

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

The AS1355-BQFT-WWD2 is a high-performance triple CMOS low-dropout (LDO) voltage regulator manufactured by ams-OSRAM. It integrates three independent linear regulators within a single compact package, providing efficient power management for multi-voltage systems. The device features fixed output voltages of 1.5V and two channels at 3.3V, delivering a total current capacity of 300mA per output. Designed for automotive and industrial applications, it operates reliably across an ambient temperature range of -40°C to 85°C. The component utilizes a 16-WFQFN exposed pad package with dimensions of 3x3 mm, ensuring minimal footprint while maintaining thermal efficiency and electrical stability for sensitive electronic circuits.

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

• Integrates three independent LDO channels in a single QFN package
• Provides fixed output voltages including 1.5V and 3.3V options
• Supports 300mA output current capability per channel
• Operates reliably within extended automotive temperature ranges

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

• Automotive infotainment system power distribution
• Multi-voltage sensor node power regulation
• Industrial control board auxiliary power supplies
• Embedded computing module voltage sequencing

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

Verify the specific suffix WWD2 against official datasheets to confirm the exact output voltage configuration and packaging variant. Ensure compatibility with RoHS compliance requirements for your assembly process. Cross-reference the 16-TQFN pinout with your PCB layout design to prevent installation errors. Confirm that the thermal pad connection meets your board's thermal dissipation specifications for reliable operation under load.

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

Choose this component when space-constrained designs require multiple regulated voltages from a single source. The triple-channel architecture simplifies bill-of-materials compared to using discrete regulators. Verify that the required output currents do not exceed the 300mA limit per channel. Consider the thermal performance of the exposed pad package if operating near maximum temperature limits or high load conditions.

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

This part belongs to the AS1355 series of triple LDO regulators designed by ams-OSRAM. The series targets applications needing compact, efficient power solutions with multiple voltage rails. The BQFT suffix typically indicates automotive-grade qualification and specific packaging details. This family emphasizes low noise and high PSRR for sensitive analog and digital loads in demanding environments.

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

Check for direct cross-references from manufacturers like Diodes Inc. or STMicroelectronics offering similar triple LDO configurations. Ensure replacement parts match the 16-pin QFN footprint and thermal characteristics. Verify that alternative components support the same 1.5V and 3.3V output combinations and meet the required 300mA current rating per channel.