Manufacturer Part Number

TLV75518PDQNR

Description

Linear voltage regulator IC from Texas Instruments. Provides a stable 1.8V output voltage with up to 500mA output current. Compact 4-X2SON package (size: 1mm x 1mm), surface-mountable. Designed for space-constrained applications. Offers reliable voltage control for sensitive electronic components.

Specifications

Input voltage range up to 5.5V. Fixed 1.8V output voltage. Maximum output current of 500mA. Voltage dropout maximum is 0.4V at full load. Low quiescent current of 31 µA. PSRR rated at 52dB (1kHz to 1MHz). Operational temperature range from -40°C to 125°C (TJ). RoHS3 compliant, REACH unaffected, ECCN EAR99, HTSUS 8542.39.0001. Moisture Sensitivity Level 1 (unlimited).

Device Structure

Consists of a single positive fixed regulator IC. Housed in a 4-pin X2SON surface mount package with an exposed pad for heat dissipation. Built for efficient thermal performance and compact PCB integration.

Performance Characteristics

Offers stable, low-noise voltage with high PSRR for reliable supply even in noisy environments. Supports up to 500mA output current for powering moderate loads. Low dropout voltage ensures high efficiency with low overhead. Integrated protection against overcurrent and overtemperature for safe operation. Enable control for power saving.

Application Environments

Suitable for portable and battery-powered devices, IoT modules, industrial sensors, medical instruments, and small embedded circuits requiring precise 1.8V supply. Ideal for use in space-limited designs and high-density boards.

Selection Guidelines

Choose TLV75518PDQNR when a fixed 1.8V output, stable performance under load, low power consumption, and small package size are required. Check input voltage does not exceed 5.5V. Verify load current stays below 500mA. Surface mount package is suitable for automated assembly.

Usage Considerations

Ensure adequate PCB heat dissipation for maximum load conditions. Do not exceed specified input and output currents. Use proper decoupling capacitors near input and output pins. Enable feature should be properly toggled for power management. Carefully review protection features for mission critical applications.

Potential Equivalent/Replacement Models

Direct alternatives include other 1.8V linear regulators from Texas Instruments such as TLV70518, TPS7A2018, TLV71318, and TLV70018 series in compatible packages and similar current ratings. Also consider LDO regulators from Analog Devices (ADP7158ACPZ-1.8), ON Semiconductor (NCP4681DSQ18T1G), and Maxim Integrated (MAX8511EXK18+T) for equivalent performance. If no exact substitute fits your requirements, contact Ariat-Tech sales team for additional support and recommendations.

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