R1111N241A-TR-FE

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

The R1111N241A-TR-FE is a CMOS-based low dropout voltage regulator IC from the R1111N series, manufactured by Nisshinbo Micro Devices. It provides a fixed output voltage of 2.4V with an accuracy of ±2.0%. The device features a typical supply current of 35μA and supports a maximum output current of 150mA. It operates within an input voltage range of 2.0V to 8.0V and includes a chip enable circuit activated by a low signal. The component is housed in an SOT-23-5 package.

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

• Built-in chip enable circuit for power management
• Fold-back protection circuit against short circuits
• High ripple rejection capability
• Low temperature-drift coefficient

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

• Power source for cellular phones such as GSM, CDMA and various kinds of PCSs
• Power source for electrical appliances such as cameras, VCRs and camcorders
• Power source for battery-powered equipment

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

Verify the specific ordering suffixes to confirm the active type and output voltage match the design requirements. Ensure the selected component aligns with the required pin configuration and package dimensions. Confirm RoHS compliance status before finalizing procurement decisions. Cross-reference datasheet specifications with system constraints to ensure operational reliability under expected load conditions.

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

Select this component when a fixed 2.4V output is required with high accuracy. The 'A' suffix indicates the chip enable function is active low. Consider the low standby current for battery-operated applications. Verify that the external capacitor ESR meets stability requirements. Ensure the input voltage remains within the recommended operating range for optimal performance.

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

This part belongs to the R1111N series of low noise 150mA LDO regulators. The series is designed for handheld communication equipment due to excellent transient response characteristics. The R1111Nxx1A variant specifically utilizes a low-active chip enable signal. The device integrates a voltage reference, error amplifier, and current limit circuitry.

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

Check for other R1111N variants with different output voltages or active types if system requirements change. Verify pin compatibility with existing designs, noting the similarity to LP2980 pin-outs.