SPX1117M3-L-3-3/TR

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

The SPX1117M3-L-3-3/TR is a fixed-output low dropout linear voltage regulator manufactured by MaxLinear. It provides a stable 3.3V output with a maximum current capacity of 800mA. The device operates within an input voltage range of 2.6V to 15V and maintains a typical dropout voltage of 1.1V at full load. Key electrical specifications include a quiescent current of 5mA, a line regulation of 0.1%, and a load regulation of 0.2%. It features a typical power supply rejection ratio (PSRR) of 75dB and is housed in a surface-mount SOT-223-3 package.

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

• Fixed 3.3V output voltage designed for battery-powered applications
• Capacitor-free stability using only ceramic output capacitors
• Integrated overcurrent and thermal shutdown protection

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

• Battery-powered portable devices
• Portable computers
• General-purpose low-dropout power regulation

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

Verify the manufacturer designation on official datasheets, as historical records show this component was produced under both Exar and MaxLinear branding following corporate acquisitions. Confirm the specific suffix indicates tape-and-reel packaging. Ensure compatibility with RoHS standards if required by your manufacturing process. Cross-reference part numbers carefully to distinguish between adjustable and fixed voltage variants within the same series.

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

Select this component when a fixed 3.3V rail is required with moderate current demands up to 800mA. It is suitable for designs prioritizing small footprint via the SOT-223 package. Consider the 1.1V dropout requirement to ensure sufficient headroom between input and output voltages. Verify that the application environment stays within the -40°C to +125°C operating temperature range.

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

This part belongs to the SPX1117 series of low-power positive voltage regulators. The series offers various fixed output voltages including 1.5V, 1.8V, 2.5V, 3.3V, and 5V. The 'M3' suffix typically denotes the SOT-223 surface-mount package variant. The series is engineered for cost-effective solutions requiring compact size and efficient power management in portable electronics.

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

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official distributor databases or manufacturer cross-reference tools for equivalent components from other vendors.