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Product Detailed Parameters
- Description：IC REG LINEAR 2.8V 300MA 4-WLCSP
- Series：-
- Mfr：NXP USA Inc.
- Package：Bulk
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：2.8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.16V @ 300mA
- Current - Output：300mA
- Current - Quiescent (Iq)：100 µA
- Current - Supply (Max)：250 µA
- PSRR：55dB (1kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：4-XFBGA, WLCSP
- Supplier Device Package：4-WLCSP (0.76x0.76)
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Overview
The LD6836CX4/28H,315 is a fixed positive Low DropOut regulator with a nominal output voltage of 2.8 V. It operates within an input voltage range of 2.3 V to 5.5 V and supports a maximum output current of 300 mA. The device utilizes a WLCSP4 package measuring 0.76 mm x 0.76 mm with a 0.4 mm pitch. Key electrical characteristics include a typical dropout voltage of 90 mV at full load, a quiescent current of 70 µA, and an RMS output noise of 30 µV over the 10 Hz to 100 kHz frequency band.
Feature Summary
- Provides a high-ohmic (three-state) output state when disabled
- Features integrated over-temperature protection and output current limiting
- Includes ElectroStatic Discharge protection up to 10 kV Human Body Model
Applications
- Analog and digital interfaces in mobile appliances requiring lower supply voltages
- Digital still cameras and portable media players
- Personal navigation devices and mobile internet devices
Procurement Notes
Verify the specific suffix '315' against official NXP documentation to confirm reel packaging details. Ensure compatibility with RoHS standards and lead-free manufacturing processes. Confirm availability status as this component may be subject to lifecycle changes or discontinuation notices from the manufacturer.
Selection Notes
Select this variant for applications requiring a precise 2.8 V rail with minimal footprint. The high-ohmic output mode is suitable for bus-sharing scenarios where a floating state is required during shutdown. Verify that external capacitors meet the minimum ESR requirements for stability.
Part Context
This component belongs to the LD6836 series of ultra-low dropout regulators manufactured by NXP Semiconductors. The series offers various fixed output voltages between 1.2 V and 3.6 V. The CX4 designation indicates the Wafer-Level Chip-Scale Package format designed for miniaturization in portable electronics.
Replacement Considerations
Compatible substitutes within the same family include LD6836CX4/28P, which provides a low-ohmic auto-discharge function instead of a high-ohmic state. Other voltage variants such as LD6836CX4/27H or LD6836CX4/30H share identical package and performance characteristics.
