R1517S341E-E2-FE

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

The R1517S341E-E2-FE is a CMOS-based low-dropout regulator featuring a 500 mA output current and a maximum input voltage of 36 V. It provides a fixed 3.4 V output with ±0.8% accuracy at 25°C. The device operates within a temperature range of −40°C to 105°C, drawing a typical supply current of 18 µA and standby current of 0.1 µA. Dropout voltage is typically 0.35 V at full load. It includes adjustable soft-start via an external capacitor on the DELAY pin, short-circuit protection, fold-back current limiting, and thermal shutdown.

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

• Adjustable soft-start time setting capability using an external capacitor connected to the DELAY pin
• Built-in protection circuits including short-circuit current limit, fold-back protection, and thermal shutdown
• Supports stable operation with ceramic capacitors for both input and output filtering

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

• Power source for home appliances such as refrigerators and rice cookers
• Power source for notebook PCs, digital TVs, and telephones
• Power source for office equipment including copiers, printers, and scanners

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

Verify the specific suffix E indicates adjustable soft-start functionality and HSOP-6J package configuration. Confirm the part number matches the required 3.4 V fixed output voltage. Ensure compatibility with the manufacturer's RoHS and halogen-free specifications. Check datasheet requirements for external components, specifically the capacitor value needed on the DELAY pin to achieve the desired startup slope.

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

Select this component when a fixed 3.4 V output is required alongside high input voltage tolerance up to 36 V. Choose the E variant over B or D versions if customizable soft-start timing is necessary for inrush current management. Consider the HSOP-6J package for surface-mount applications requiring standard land patterns. Evaluate thermal dissipation requirements based on the expected ambient temperature and PCB copper area.

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

This device belongs to the R1517x series of low-supply current LDO regulators manufactured by Nisshinbo Micro Devices. The series is designed for automotive accessories and general electronic equipment due to its wide input voltage range and robust protection features. The R1517S341E-E2-FE represents a specific configuration within this family, offering fixed voltage output with programmable startup characteristics.

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

Direct substitutes include other R1517S variants with different output voltages or feature sets, such as R1517S331E-E2-FE for 3.3 V output. Cross-series replacements from other manufacturers require verification of pin compatibility, dropout voltage, and current limits.