RP103Q151B-TR-FE

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

The RP103Q151B-TR-FE is a CMOS-based low dropout regulator from the RP103x series, manufactured by Nisshinbo Micro Devices. It provides a fixed output voltage of 1.5V with an accuracy of ±1.0%. The device supports a maximum output current of 150mA and operates within an input voltage range of 1.7V to 5.25V. Key electrical characteristics include a typical supply current of 36μA, a standby current of 0.1μA, and a ripple rejection ratio of 75dB at 1kHz. The component features a chip enable function and is housed in an SC-82AB package.

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

• CMOS-based architecture providing high output voltage accuracy and extremely low supply current.
• Integrated chip enable circuit for power management and built-in fold-back protection circuit.
• High ripple rejection capability suitable for noise-sensitive applications.
• Low dropout voltage performance ensuring efficient operation under varying load conditions.

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

• Power source for portable communication equipment.
• Power source for battery-powered equipment.
• Power source for electrical appliances such as cameras, VCRs, and camcorders.
• Power source for home appliances.

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

Verify the specific ordering suffix to confirm the package type and pin configuration. Ensure that external ceramic capacitors are selected according to datasheet recommendations for phase compensation. Confirm RoHS compliance status and check for any discontinued package variants within the series before finalizing procurement specifications.

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

Select this component when a fixed 1.5V output is required with high precision. Consider the SC-82AB package for board space constraints. Verify that the input voltage remains within the 1.7V to 5.25V range. Ensure the load current does not exceed 150mA. Check thermal dissipation requirements based on ambient temperature and board layout.

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

This part belongs to the RP103x Series of low noise 150mA LDO regulators. The series includes various packages such as DFN(PL)1010-4, SC-82AB, SC-88A, and SOT-23-5. The 'Q' designation indicates the SC-82AB package variant. The '1' in the model number specifies the 1.5V output voltage. The 'B' suffix denotes a high-active chip enable without auto-discharge functionality.

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

RP103N151B-TR-FE (SOT-23-5 package)

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

What is the recommended capacitor value for stable operation?

Ceramic capacitors with a capacitance of 0.47μF or more are recommended for both input and output pins to ensure stability.

Does this component have an auto-discharge function?

No, the 'B' suffix in the model number indicates that the chip enable is active high without an auto-discharge function at the off state.