LD6806CX4/22H,315

Product Overview

The LD6806CX4/22H,315 from NXP USA Inc. is a linear voltage regulator IC that provides a fixed positive 2.2 V output from a single channel. It supports up to 200 mA load current and uses a compact 4-WLCSP surface-mount package. The device is specified for operation from -40°C to 85°C and includes an enable control feature, along with over-current and over-temperature protection. A low quiescent current of 100 µA helps limit supply burden in powered-down or lightly loaded circuits.

Key Features

• Fixed 2.2 V positive output with one regulator channel and 200 mA output current.
• Maximum input voltage is 5.5 V, with 0.1 V dropout at 200 mA.
• Quiescent current is 100 µA and maximum supply current is 250 µA.
• Power-suppression ratio (PSRR) is 55 dB at 1 kHz.
• Enable control simplifies sequencing and selective power-down in multi-rail systems.
• Integrated over-current and over-temperature protection supports fault management.
• Operating temperature range is -40°C to 85°C.
• The 4-XFBGA, WLCSP package uses 0.76 x 0.76 dimensions and surface-mount assembly.

Applications

• Regulated 2.2 V supply for low-power microcontroller or sensor subsystems in portable devices.
• Local post-regulation from a higher-voltage input rail to a 2.2 V logic or measurement domain.
• Enable-controlled power domain for selective activation of low-voltage subsystems.
• Compact voltage regulation in space-constrained modules where a 0.76 x 0.76 WLCSP footprint is useful.
• Low-current auxiliary rail for battery-operated equipment that benefits from 100 µA quiescent consumption.

Design & Procurement Notes

Designers should confirm that the upstream supply stays below the 5.5 V maximum input rating and provides enough headroom for the 0.1 V dropout at 200 mA load current. Because the output is fixed at 2.2 V, system voltage domains must be planned around that value rather than an adjustable setting. The enable control can be used for power sequencing or selective shutdown, while over-current and over-temperature protection should be accounted for in fault handling. The 100 µA quiescent current and 55 dB PSRR at 1 kHz are relevant for low-power and noise-sensitive rails. The 0.76 x 0.76 WLCSP package requires surface-mount assembly and attention to thermal behavior across the -40°C to 85°C operating range.