FAN1616ADX

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

The FAN1616ADX is an adjustable positive low-dropout (LDO) linear regulator manufactured by onsemi, formerly Fairchild Semiconductor. It operates within a supply voltage range of 2.7 V to 5.5 V and delivers up to 0.5 A output current. The device features a maximum dropout voltage of 1.2 V at full load and includes integrated overcurrent protection and thermal shutdown for robust operation. Designed for high efficiency in space-constrained applications, it supports dynamic load changes with excellent transient response.

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

• Adjustable output voltage capability for flexible power rail generation
• Integrated overcurrent limiting and thermal shutdown protection mechanisms
• Low quiescent current consumption for improved system efficiency
• High ripple rejection ratio to minimize power supply noise

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

• USB hub power distribution systems
• Motherboard voltage regulation modules
• SDRAM module power supplies
• General-purpose 5V to lower voltage conversion stages

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

Verify the manufacturer origin, as onsemi acquired Fairchild Semiconductor's logic and power management portfolio. Confirm the specific suffix 'ADX' corresponds to the intended package variant and temperature grade. Cross-reference the datasheet revision date to ensure compliance with current environmental standards such as RoHS. Validate pin compatibility if replacing legacy inventory from original Fairchild production runs.

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

Select this component when an adjustable output voltage is required within the 2.7 V to 5.5 V input range. It is suitable for designs needing up to 0.5 A continuous current with minimal voltage drop. Consider the SOT-223 or TO-252 package options based on thermal dissipation requirements and board space constraints. Ensure the application does not exceed the maximum junction temperature limits under worst-case load conditions.

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

This part belongs to the FAN1616A family of LDO regulators designed for portable and computing applications. It serves as a cost-effective solution for generating stable voltage rails from higher supply sources. The series is optimized for USB and motherboard architectures where efficiency and size are critical. It complements other power management ICs in complex multi-rail systems.

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

Direct substitutes include the FAN1616ASX and FAN1616ATX, which share identical electrical specifications but differ in packaging formats. Verify that any replacement maintains the same adjustable output configuration and current rating. Check for equivalent thermal performance characteristics to ensure reliable operation in the target enclosure.