LP3853ESX-2.5/NOPB

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

The LP3853ESX-2.5/NOPB is a fixed-output low dropout linear regulator manufactured by Texas Instruments, delivering a stable 2.5 V output with a maximum load current of 3 A. It operates within an input voltage range of 2.5 V to 7 V and features a typical power supply rejection ratio (PSRR) of 73 dB at 120 Hz. The device incorporates comprehensive protection mechanisms including overcurrent limiting, thermal shutdown, and reverse battery protection. Designed for surface-mount applications, it utilizes a TO-263 package and supports operation across an extended temperature range from -40°C to +125°C.

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

• Integrated overcurrent limiting and thermal shutdown protection for enhanced system reliability
• Reverse battery protection capability allows safe connection even if input polarity is inverted
• Fixed 2.5 V output configuration ensures precise voltage regulation without external feedback components

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

• Portable equipment requiring efficient power management
• Battery-powered systems needing stable voltage rails
• General-purpose embedded circuits requiring high-current regulation

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

Verify the complete part number including the suffix to confirm RoHS compliance and specific packaging type. Ensure the ordering code matches the required reel or cut tape quantity. Confirm that the intended application environment stays within the specified operating temperature limits. Check for any recent product change notifications regarding pinout or electrical characteristics before finalizing procurement.

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

Select this component when a fixed 2.5 V rail is required with up to 3 A continuous load current. It is suitable for designs where input voltages remain between 2.5 V and 7 V. Consider the TO-263 package for adequate thermal dissipation in space-constrained PCB layouts. Verify that the required PSRR meets the noise sensitivity requirements of downstream analog circuitry.

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

This device belongs to the LP3853 series of ultra-low-dropout regulators designed for high-efficiency power conversion. It shares architectural similarities with other members of the family but offers a specific fixed output voltage. The series is engineered to minimize power loss while maintaining stability with small ceramic capacitors, making it distinct from older LDO technologies requiring larger output capacitance.

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

Direct functional substitutes include LP3853ES-2.5/NOPB which shares identical electrical specifications but differs in tube packaging rather than reel packaging.