RP170H401B-T1-FE

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

The RP170H401B-T1-FE is a fixed-output CMOS LDO regulator from the RP170H series, manufactured by Nisshinbo Micro Devices. It provides a stable 4 V output with a maximum continuous current of 300 mA. The device operates within an input voltage range up to 10 V and features a typical dropout voltage of 500 mV at full load. Key electrical specifications include a quiescent current of 23 µA, line regulation of 0.02 %/V, and load regulation of 10 mV. Power dissipation capabilities reach 900 mW in the SOT-89-5 package. The unit maintains operation across a temperature range of -40 °C to +85 °C.

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

• Fixed 4 V output voltage with high accuracy
• Low quiescent current for power efficiency
• High power supply ripple rejection ratio
• Compact surface-mount packaging

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

• Portable electronic devices requiring stable low-voltage rails
• Battery-powered systems needing efficient linear regulation
• General-purpose power management in consumer electronics

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

Verify the complete part number including suffixes against official Nisshinbo documentation to ensure correct package and tolerance specifications. Confirm RoHS compliance status through the manufacturer's latest environmental declarations. Cross-reference datasheet revisions to validate thermal characteristics and pinout configurations before integration into design files.

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

Select this component when a fixed 4 V rail is required with moderate current demands up to 300 mA. The SOT-89-5 package offers higher thermal performance than smaller alternatives like SOT-23-5. Ensure input voltage remains within the 10 V maximum limit. Consider the 500 mV dropout characteristic relative to minimum input voltage requirements under varying load conditions.

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

This regulator belongs to the RP170H series, which utilizes CMOS technology for low power consumption. The series is designed for general-purpose applications requiring stable linear regulation. The RP170H variant specifically supports higher power dissipation compared to the RP170N series, making it suitable for applications with greater thermal loads or higher input-to-output voltage differentials.

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

Direct substitutes may include other RP170H series parts with different fixed output voltages, such as RP170H331B-T1-FE (3.3 V) or RP170H501D-T1-FE (5 V), provided the circuit design accommodates the voltage difference. Verify pin compatibility and thermal resistance values when swapping between packages.