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Product Detailed Parameters
- Description：IC REG LINEAR 2.8V 150MA 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)：0.075V @ 150mA
- Current - Output：150mA
- Current - Quiescent (Iq)：100 µA
- Current - Supply (Max)：250 µA
- PSRR：55dB (1kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature, Transient Voltage
- 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 LD6816CX4/28P,315 is a fixed-output Low DropOut regulator from NXP Semiconductors. It provides a nominal output voltage of 2.8 V with a maximum output current rating of 150 mA. The device operates within an input voltage range of 2.3 V to 5.5 V and features a typical dropout voltage of 45 mV at full load. It utilizes a WLCSP4 package with a 0.4 mm pitch. Key electrical characteristics include a typical quiescent current of 70 µA in active mode and 0.1 µA in shutdown mode. The unit incorporates over-temperature protection, output current limiting, and integrated ESD protection up to 10 kV HBM.
Feature Summary
- Integrated pull-down switching transistor for auto discharge function when disabled
- Ultra-low noise performance with typical RMS output noise of 30 µV
- High power supply rejection ratio of 55 dB at 1 kHz
- Monolithic silicon technology with Pb-free and RoHS compliance
Applications
- Smart phones and mobile phone handsets
- Digital still cameras
- Portable media players
- Personal navigation devices
Procurement Notes
Verify the specific suffix '315' against official manufacturer documentation to confirm reel packaging specifications. Ensure compatibility with the required 2.8 V fixed output variant. Confirm that the WLCSP4 package dimensions align with the target PCB footprint design constraints.
Selection Notes
Select this component for applications requiring precise 2.8 V regulation in space-constrained portable electronics. The pull-down feature distinguishes it from high-ohmic variants, making it suitable where rapid output discharge is necessary. Evaluate thermal resistance requirements based on the specific PCB layout and copper area available for heat dissipation.
Part Context
This part belongs to the LD6816 series of ultra-low dropout regulators designed for miniaturization. The 'P' designation indicates the inclusion of an internal pull-down transistor, unlike the 'H' series which offers a high-impedance state upon disable. The CX4 suffix denotes the Wafer-Level Chip-Scale Package configuration.
Replacement Considerations
LD6816CX4/28H: Offers identical electrical performance but lacks the auto-discharge pull-down transistor, resulting in a high-ohmic output state when disabled.
