LD6836CX4/36P,315

Product Overview

The LD6836CX4/36P,315 from NXP USA Inc. is a linear voltage regulator IC that provides a positive fixed 3.6 V output from a single regulator channel. The device is specified for a maximum input voltage of 5.5 V, a maximum output current of 300 mA, and a maximum dropout voltage of 0.16 V at 300 mA. The device uses a 4-WLCSP surface-mount package with a 0.76 mm by 0.76 mm body outline. Control and protection functions include enable control, overcurrent protection, and overtemperature protection. The operating temperature range is -40°C to 85°C, and the quiescent current is 100 µA.

Key Features

• Positive fixed 3.6 V output from one regulator channel
• Maximum input voltage of 5.5 V
• Maximum output current of 300 mA
• Maximum dropout voltage of 0.16 V at 300 mA
• Quiescent current of 100 µA
• Maximum supply current of 250 µA
• Power supply rejection ratio of 55 dB at 1 kHz
• Enable control feature
• Overcurrent and overtemperature protection
• Operating temperature range of -40°C to 85°C
• 4-XFBGA WLCSP surface-mount package
• 0.76 mm by 0.76 mm package outline

Applications

• Fixed 3.6 V rail for digital or mixed-signal circuitry powered from an input up to 5.5 V
• Enable-controlled 3.6 V supply for compact surface-mount embedded assemblies
• 3.6 V regulated output for circuitry where fault protection at the regulator is needed

Design & Procurement Notes

Design considerations include ensuring the input voltage does not exceed 5.5 V, selecting a 3.6 V output rail within the 300 mA output limit, and accounting for 0.16 V dropout at full load. The enable control feature allows the regulator to be controlled, while overcurrent and overtemperature protection respond to output faults. The 4-WLCSP package requires surface-mount assembly and layout suitable for a 0.76 mm by 0.76 mm body. Thermal and current margins should be considered within the -40°C to 85°C operating range. The 55 dB PSRR at 1 kHz can be considered when regulating inputs that may contain ripple or noise.