LD6815TD/25P,125

Product Overview

The LD6815TD/25P,125 from NXP USA Inc. is a positive fixed-output linear voltage regulator intended to provide a 2.5V rail from an input voltage up to 5.5V. It is a single-output device rated for 150mA and uses a surface-mount SC-74A/SOT-753 package, also identified as 5-TSOP. The regulator includes an enable control and protection against over-current and transient voltage, with a typical dropout of 0.25V at 150mA and a quiescent current of 35 µA. Its specified operating temperature range is -40°C to 85°C, and its power-supply rejection is 75dB at 1kHz.

Key Features

• Positive fixed-output linear regulator with one output
• 2.5V fixed output at up to 150mA
• Input voltage maximum of 5.5V
• Typical dropout of 0.25V at 150mA
• Quiescent current of 35 µA and supply current maximum of 150 µA
• Enable control with over-current and transient voltage protection
• 75dB PSRR at 1kHz
• Surface-mount SC-74A/SOT-753, 5-TSOP package
• Operating temperature range of -40°C to 85°C

Applications

• Low-current 2.5V supply rail in compact embedded control boards
• Fixed voltage source for sensor and measurement modules in portable devices
• Regulated rail in power-managed systems where enable control and low quiescent current are relevant

Design & Procurement Notes

Designers should confirm that the available input voltage remains within the 5.5V maximum and provides sufficient headroom above the fixed 2.5V output, especially near the 150mA load condition where the typical dropout is 0.25V. The enable control can be used to manage output operation in power-managed systems, while the 35 µA quiescent current and 150 µA maximum supply current should be considered in low-current designs. The over-current and transient voltage protection features, 75dB PSRR at 1kHz, and -40°C to 85°C operating range define the electrical and thermal context for selection. The surface-mount SC-74A/SOT-753, 5-TSOP package should be checked against the PCB footprint and assembly process.