R1173S331D-E2-FE

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

The R1173S331D-E2-FE is a CMOS Low Dropout (LDO) voltage regulator manufactured by Nisshinbo Micro Devices. It provides a fixed 3.3 V output with a maximum continuous current of 1 A. The device operates within an input voltage range of 1.4 V to 6 V and features a typical dropout voltage of 180 mV at full load. Key electrical specifications include a line regulation of 0.05 %/V, a load regulation of -3 mV, and a power supply rejection ratio (PSRR) of 70 dB. The quiescent current is 60 uA, and the unit supports a maximum power dissipation of 1.7 W. It is housed in an HSOP-6J-6 package and functions reliably across a temperature range of -40 C to +85 C.

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

• Fixed 3.3 V output voltage with high accuracy
• Low dropout characteristic for efficient operation near input limits
• High power supply rejection ratio for noise reduction
• Compact surface-mount packaging for space-constrained designs

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

• Portable electronic devices requiring stable low-voltage power
• Battery-powered systems needing efficient linear regulation
• Embedded circuits demanding low noise performance

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

Verify the specific ordering suffix and tape-and-reel quantity requirements directly with the manufacturer or authorized distributors before placing orders. Confirm that the HSOP-6J-6 package dimensions match your PCB footprint design. Ensure compliance with RoHS directives and check for any recent product lifecycle notifications or obsolescence warnings from Nisshinbo Micro Devices.

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

Select this component when a fixed 3.3 V rail is required with up to 1 A load capability. It is suitable for applications where input voltages are close to the output level due to its low dropout voltage. Consider the 60 uA quiescent current for battery life calculations and verify thermal management needs against the 1.7 W power dissipation limit in the HSOP-6J-6 package.

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

This part belongs to the R1173S series of low voltage LDO regulators from Nisshinbo Micro Devices. The series is designed for general-purpose power management in portable electronics. The R1173S331D-E2-FE specifically denotes the 3.3 V fixed output variant in the HSOP-6J-6 package with E2 environmental coding and FE reel packaging.

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

The R1172S331D-E2-FE is a similar LDO regulator from the same manufacturer offering comparable electrical characteristics and pinout compatibility.