RN5RF25BA-TR-FE

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

The RN5RF25BA-TR-FE is a CMOS-based low ripple voltage regulator IC from the RN5RF series, designed to control external driver transistors. It features high accuracy output voltage, low supply current, and supreme ripple rejection. The device integrates a voltage reference unit, error amplifier, output voltage setting resistor, short circuit current limiting circuit, and chip enable circuit. It supports an input voltage up to 10V and provides a fixed output of 2.5V with ±2% accuracy. The typical dropout voltage is 0.1V at 100mA, dependent on the external transistor. Supply current is typically 30μA, dropping to 0.1μA in standby mode.

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

• Integrates a chip enable function to conserve battery life during standby operations
• Provides high ripple rejection suitable for portable communication equipment
• Includes internal short circuit current limiting protection

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

• Power source for battery-powered equipment
• Power source for hand-held communication equipment, cameras, and VCRs
• Power source for home appliances

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

Verify the specific suffix 'BA' indicates a High-active Chip Enable pin polarity and a 2.5V fixed output voltage. Confirm the package type is SOT-23-5 and the reel quantity is 3,000 pieces. Ensure the external PNP transistor selected meets the recommended hFE range of 100 to 300 for proper operation. Check RoHS compliance status before finalizing procurement orders.

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

Select this component when designing regulators requiring ultra-low dropout voltage and output currents in the range of several tens to hundreds of mA. The RN5RF25BA-TR-FE is appropriate for applications needing precise voltage regulation with minimal power consumption. Consider the external transistor's saturation characteristics as the dropout voltage depends on it. Ensure the operating temperature range of -40°C to +85°C matches the system requirements.

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

This part belongs to the RN5RF series of low ripple voltage regulators with external transistors manufactured by Nisshinbo Micro Devices Inc. The series utilizes a CMOS process to achieve low supply current and high accuracy. The RN5RF25BA-TR-FE specifically offers a fixed 2.5V output with High-active Chip Enable functionality, packaged in a compact SOT-23-5 form factor for space-constrained designs.

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

Other variants within the RN5RF series may serve as substitutes if different output voltages or Chip Enable polarities are required. Verify that any replacement maintains the same SOT-23-5 package and electrical characteristics compatible with the existing external transistor configuration.