LD6805K/13H,115

Overview

The LD6805K/13H,115 is a fixed-output low-dropout regulator (LDO) providing a nominal voltage of 1.3 V with a maximum output current rating of 150 mA. It operates within an input voltage range of 2.3 V to 5.5 V and features a dropout voltage of 250 mV at full load. The device delivers a power supply rejection ratio (PSRR) of 75 dB at 1 kHz and maintains a typical quiescent current of 35 µA. Packaged in a compact DFN1010C-4 (SOT1194-1) plastic housing measuring 1 x 1 x 0.55 mm, it includes integrated ESD protection up to 6 kV HBM.

Feature Summary

• Ultra-high power supply rejection ratio for effective noise suppression
• High-ohmic state at the output pin when disabled
• Low quiescent current operation in shutdown mode
• Integrated over-current protection and thermal shutdown

Applications

• Smart phones and mobile phone handsets
• Digital still cameras
• Portable media players
• Personal navigation devices

Procurement Notes

Verify component authenticity through authorized NXP Semiconductors channels or certified distributors. Confirm that the specific suffix '115' matches the required reel packaging configuration. Ensure the high-ohmic output variant aligns with system requirements, as pull-down variants exist. Validate RoHS compliance status against current regulatory standards before integration.

Selection Notes

Select this component for portable applications requiring precise 1.3 V regulation from higher input rails. The high-ohmic output characteristic distinguishes it from auto-discharge versions. Evaluate PCB layout for thermal dissipation due to the small package size. Ensure external capacitors meet minimum ESR specifications to maintain stability under varying load conditions.

Part Context

This part belongs to the LD6805 series of low-dropout regulators designed for miniaturized electronics. The series offers various fixed output voltages ranging from 1.2 V to 3.6 V. The 'H' suffix specifically denotes the high-ohmic output behavior upon disable, contrasting with the 'P' suffix which provides an auto-discharge function via a pull-down transistor.

Replacement Considerations

Direct replacements include other LD6805K/xxH variants with different fixed output voltages if the 1.3 V requirement changes. Cross-reference with similar ultra-thin LDO families from NXP, ensuring identical pinouts and package dimensions for drop-in compatibility.