AS1369-BWLT-18

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

The AS1369-BWLT-18 is a 200mA ultra-compact low dropout regulator (LDO) designed for battery-powered applications. It delivers a fixed 1.8V output with ±2% accuracy over temperature. The device operates from an input voltage range of 2.0V to 5.5V and achieves a typical dropout voltage of 40mV at 100mA load. It features high power supply rejection ratio (PSRR) of 72dB at 1kHz and low output noise of 30µVRMS without requiring external bypass capacitors. Quiescent current is typically 25µA, dropping below 0.1µA in shutdown mode.

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

• Ultra-compact 4-bump WLCSP package optimized for space-constrained mobile designs
• High PSRR and low noise performance eliminating the need for external bypass capacitors
• Integrated thermal and over-current protection mechanisms

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

• Mobile phones
• Personal Digital Assistants (PDAs)
• MP3 players

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

Verify the specific ordering code AS1369-BWLT-18 against the manufacturer's official documentation to confirm the 1.8V output specification. Ensure compatibility with the required 4-bump WL-CSP footprint during PCB layout. Confirm RoHS compliance status as indicated in the datasheet before finalizing procurement orders.

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

Select this component when a fixed 1.8V rail is required for portable electronics. The device supports small input and output capacitors of 0.47µF, simplifying the bill of materials. Consider the 2.0V minimum input voltage constraint relative to the battery discharge curve to ensure stable regulation throughout operation.

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

This part belongs to the AS1369 series of ultra-compact LDOs manufactured by austriamicrosystems AG. The series offers multiple fixed output voltages ranging from 1.2V to 5.0V in 100mV steps. All variants share the same 4-bump WL-CSP package and electrical characteristics, differing only in the regulated output voltage level.

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

Other versions within the AS1369 family provide different fixed output voltages but maintain identical pinouts and package dimensions. Verify that the target system requires exactly 1.8V; if a different voltage is needed, select the corresponding suffix variant from the official ordering information table.