TPS79525DCQG4

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

The TPS79525DCQG4 is a fixed-output low-dropout linear regulator from Texas Instruments, delivering a stable 2.5 V at up to 500 mA. It operates within an input voltage range of 2.7 V to 5.5 V and features ultralow noise with high power supply rejection ratio (PSRR). The device includes fast RF bypass functionality and a high-enable control pin for efficient power management. It incorporates comprehensive protection mechanisms including overcurrent, thermal shutdown, reverse polarity, and undervoltage lockout. Designed for surface-mount applications in the SOT-223-6 package, it supports operation across a wide temperature range from -40°C to +125°C.

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

• Ultralow-noise performance optimized for sensitive RF and communication circuits
• High PSRR with rapid transient response enabled by fast RF bypass feature
• Integrated high-enable pin allows precise power sequencing and standby control
• Robust protection against overcurrent, thermal overload, reverse polarity, and undervoltage

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

• RF front-end modules requiring clean power supplies
• Wireless communication systems and cellular infrastructure
• Portable electronic devices with strict noise sensitivity requirements
• FPGA and ASIC core voltage regulation in mobile platforms

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

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lead times prior to ordering. Ensure storage conditions respect moisture sensitivity level ratings to prevent package damage during soldering processes. Cross-reference datasheet revisions to confirm electrical parameter consistency with design specifications.

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

Select this regulator when ultralow noise and high PSRR are critical for RF signal integrity. The fixed 2.5 V output suits digital logic and analog cores requiring stable biasing. Consider the SOT-223-6 package for space-constrained PCB layouts. Evaluate thermal dissipation requirements based on input-output voltage differential and load current to ensure operation within safe junction temperature limits.

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

Part of the TPS795 family of ultralow-noise LDOs designed for high-performance applications. Shares architectural similarities with TPS79501 and TPS79533 variants, differing primarily in output voltage configuration. Manufactured by Texas Instruments under the PMIC category, targeting demanding consumer, industrial, and communications markets requiring reliable power regulation.

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

TPS79525DCQ serves as a non-G4 equivalent variant with identical electrical characteristics but potentially different packaging or traceability standards. Verify pinout compatibility and thermal performance before substitution. No direct automotive-grade replacement exists within the same series without qualification changes.