LD6806CX4/29H,315

Product Overview

The LD6806CX4/29H,315 from NXP USA Inc. is a surface-mount linear voltage regulator for single-output positive fixed-rail regulation. The device provides a 2.9 V output at up to 200 mA from an input voltage up to 5.5 V, with a maximum dropout of 0.1 V at 200 mA. It uses a 4-WLCSP (0.76x0.76) package and includes an enable control feature. The regulator includes over-current and over-temperature protection functions, while the quiescent current is 100 µA and the maximum supply current is 250 µA. It operates from -40°C to 85°C, and the 55 dB PSRR at 1 kHz supports use in noise-sensitive low-power supply paths.

Key Features

• Positive fixed 2.9 V output from a single regulator channel
• 200 mA output current with 0.1 V maximum dropout at 200 mA
• Maximum input voltage of 5.5 V
• Enable control feature for regulator on/off control
• Over-current and over-temperature protection features
• 100 µA quiescent current and 250 µA maximum supply current
• 55 dB power-supply rejection ratio at 1 kHz
• Surface-mount 4-XFBGA, WLCSP package with 4-WLCSP (0.76x0.76) device package
• Operating temperature range of -40°C to 85°C

Applications

• Battery-powered portable electronics requiring a fixed 2.9 V rail for low-current logic or sensor circuits
• Fixed 2.9 V supply rails for microcontrollers, wireless modules, or analog circuits where a regulated positive rail is required
• Compact embedded boards using WLCSP placement and enable-controlled rail sequencing
• Sensor and communication subsystems that benefit from over-current and over-temperature protection at 200 mA load levels

Design & Procurement Notes

For board-level selection, confirm that the input voltage remains within the 5.5 V maximum and that the load current does not exceed 200 mA. The 0.1 V maximum dropout at 200 mA means the input rail must remain sufficiently above 2.9 V under load and line conditions. The enable control feature should be tied into the system power sequencing plan, and the over-current and over-temperature protection functions should be considered when defining fault recovery behavior. The 4-WLCSP (0.76x0.76) package supports compact surface-mount layouts, but pad geometry and thermal management should be reviewed for the -40°C to 85°C operating range. The 100 µA quiescent current and 250 µA maximum supply current are relevant for battery-operated designs where standby current affects runtime.