RP114K191D-TR

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

The RP114K191D-TR is a CMOS-based low dropout regulator from the RP114x series, manufactured by Nisshinbo Micro Devices Inc. It provides a fixed output voltage of 1.9 V with a maximum output current of 300 mA. The device operates within an input voltage range of 1.4 V to 5.25 V and features a typical supply current of 50 µA. It includes a chip enable function and an auto-discharge feature for rapid output discharge. The IC is housed in a DFN(PL)1010-4 package.

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

• Built-in auto-discharge circuit rapidly lowers output voltage when disabled
• High ripple rejection capability for stable power supply performance
• Low dropout voltage operation due to built-in low ON resistance transistor
• Integrated short current limit and fold back protection circuits

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

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

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

Verify the specific part number against official manufacturer documentation to confirm the exact output voltage setting and package variant. Ensure compatibility with required PCB layout guidelines, particularly regarding ceramic capacitor placement and ESR requirements for stability. Confirm that the selected component meets all environmental and operational specifications for the intended application environment.

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

Select this component based on the requirement for a fixed 1.9 V output at up to 300 mA load current. Consider the DFN(PL)1010-4 package for high-density mounting applications. Evaluate the need for the auto-discharge function and chip enable control. Verify that the input voltage range and operating temperature conditions align with system requirements.

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

This component belongs to the RP114x series of low dropout regulators designed for portable electronic devices. The series offers various fixed output voltages and package options, including DFN and SOT types. The RP114K variant specifically utilizes the DFN(PL)1010-4 package, providing a compact solution for space-constrained designs requiring efficient power management.

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

Consult official manufacturer substitution lists for confirmed equivalent parts. Verify pinout compatibility and electrical characteristics before replacing components in existing designs.