LP5907YKGR-2.0

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

The LP5907YKGR-2.0 is a fixed-output linear voltage regulator from the Texas Instruments LP5907 series, providing a stable 2 V output with a maximum load current of 250 mA. It operates within an input voltage range up to 5.5 V and features a typical dropout voltage of 50 mV at full load, with a maximum of 0.2 V. The device maintains a low quiescent current of 25 µA and offers high power supply rejection ratio (PSRR) ranging from 60 dB to 90 dB across frequencies from 100 Hz to 100 kHz. Packaged in a compact 4-DSBGA (0.65x0.65 mm) footprint, it supports operation over an extended junction temperature range of -40°C to +125°C and includes AEC-Q100 automotive qualification.

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

• Ultra-low noise architecture designed for sensitive analog and RF circuitry
• High power supply rejection ratio (PSRR) effectively suppresses input ripple and noise
• Integrated enable pin allows for precise power management and system sequencing control
• Built-in protection mechanisms include overcurrent limiting, thermal shutdown, and reverse polarity protection

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

• Automotive infotainment systems requiring AEC-Q100 qualified power sources
• RF front-end modules needing ultra-low noise voltage regulation
• Portable battery-powered devices utilizing the enable feature for power optimization
• Industrial sensor interfaces demanding stable fixed voltage rails

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

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and output voltage. Check for end-of-life status as indicated by product change notices. Ensure storage conditions comply with moisture sensitivity level requirements before reflow soldering.

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

Select this part when a fixed 2 V rail is required with minimal noise impact on signal integrity. The 4-DSBGA package suits space-constrained designs. Consider the 25 µA quiescent current for battery efficiency. Verify that the input voltage remains above the minimum threshold to maintain regulation under all operating conditions.

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

This component belongs to the LP5907 family of ultra-low noise LDO regulators. The series provides various fixed output voltages from 1.2 V to 4.5 V. It is designed for applications where clean power is critical, such as RF and audio circuits. The family shares common electrical characteristics including high PSRR and low dropout performance.

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

Direct substitutes may include other LP5907 variants with different output voltages if the 2 V requirement can be adjusted. Cross-reference with LP5907MFX-2.0/NOPB for SOT-23-5 packaging alternatives. Verify pin compatibility and thermal performance when substituting packages.