RP102Z291D-TR-F

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

The RP102Z291D-TR-F is a CMOS Low Dropout (LDO) voltage regulator manufactured by Nisshinbo Micro Devices. It provides a fixed output voltage of 2.9 V with a maximum output current of 300 mA. The device features high voltage regulation accuracy of 0.8% and typical power supply rejection ratio (PSRR) of 80 dB. It operates within an input voltage range up to 5.5 V and maintains operation across a temperature range of -40°C to +85°C. The regulator is housed in a compact WLCSP-4 package, suitable for space-constrained surface-mount applications.

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

• High precision voltage regulation with 0.8% output accuracy
• Low noise performance with 80 dB typical PSRR
• Compact WLCSP-4 footprint for minimal board space usage
• Integrated protection against overcurrent conditions

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 in consumer electronics
• Signal processing modules sensitive to power supply noise

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

Verify the specific output voltage tolerance and package variant against the official datasheet before procurement. Confirm that the WLCSP-4 packaging matches your assembly requirements. Ensure compatibility with your system's input voltage and thermal constraints. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Check for any recent product change notices regarding pinout or electrical specifications.

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

Select this component when a fixed 2.9 V output is required with high accuracy and low noise. The 300 mA current capability suits moderate load applications. Consider the WLCSP-4 package if board real estate is limited compared to SOT or DFN options. Verify that the input voltage does not exceed the maximum rating while maintaining sufficient dropout voltage for regulation. Evaluate thermal dissipation needs based on the expected load current and ambient temperature.

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

This part belongs to the RP102Z series of LDO regulators from Nisshinbo Micro Devices. The series is characterized by high accuracy and low noise, targeting portable and battery-operated equipment. The Z suffix typically denotes specific package or version characteristics within the broader RP102 family. These regulators are designed for applications demanding stable power supplies in compact form factors.

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

Check for direct substitutes within the RP102Z series with different output voltages if 2.9 V is unavailable. Verify pin-to-pin compatibility with other WLCSP-4 LDOs from Nisshinbo or competitors. Ensure replacement parts meet the same 300 mA current and 0.8% accuracy specifications. Confirm identical operating temperature ranges and protection features.