AS13986-1225-T

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

The AS13986-1225-T is a dual low-dropout voltage regulator from ams OSRAM USA INC. It provides up to 150mA at each output using an input voltage range of 2.5V to 5.5V. The device features ultra-low dropout voltage, very low quiescent current, and low noise, making it suitable for low-power, battery-operated applications. Key electrical parameters include an output voltage tolerance of ±1.5% (for VOUT ≥ 3V) or ±75mV (for VOUT < 3V), supply voltage rejection of 55dB at 1kHz, and output noise of 30µVRMS (10Hz to 100kHz). It operates within a temperature range of -40°C to +125°C and is housed in an 8-pin WLP package.

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

• Dual outputs with independent logic-controlled shutdown for power management
• Ultra-low dropout voltage and very low quiescent current for extended battery life
• High power supply rejection maintained down to low input voltage levels
• Stable operation with low-ESR ceramic capacitors

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

• Cordless and mobile phones
• MP3 players and handheld computers
• Digital cameras
• PDAs and other hand-held battery-powered devices

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

Verify the specific output voltage configuration corresponding to the '1225' suffix against official ordering information tables, as this code denotes the fixed output voltages for Output 1 and Output 2. Confirm the package type is 8-pin WLP and check for RoHS compliance status. Ensure the supplier provides valid traceability documentation for the component batch.

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

Select this component when designing circuits requiring two regulated rails from a single input source with minimal space constraints. Consider its low quiescent current and fast turn-on time for portable electronics. Verify that the application load does not exceed 150mA per channel and that the input voltage remains within the 2.5V to 5.5V operating range for optimal performance.

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

The AS13986 series consists of dual LDO regulators designed for portable consumer electronics. Manufactured by austriamicrosystems AG (now part of ams OSRAM), these devices integrate thermal overload protection and short-circuit protection. The series offers various fixed output voltage combinations to suit different system requirements while maintaining a compact footprint.

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

Direct substitutes are not explicitly listed in the provided datasheet. Designers should evaluate other dual LDOs from ams OSRAM or competitors with similar 150mA per channel output, 8-pin WLP packaging, and comparable dropout voltage specifications.