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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 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)：2.5V
- 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 LD6836CX4/25P,315 is a fixed-output Low DropOut regulator from NXP Semiconductors. It provides a nominal output voltage of 2.5 V with a maximum output current rating of 300 mA. The device operates within an input voltage range of 2.3 V to 5.5 V and features a typical dropout voltage of 90 mV at full load. It utilizes a WLCSP4 package with dimensions of 0.76 mm x 0.76 mm x 0.47 mm and includes an integrated pull-down switching transistor for auto discharge functionality.
Feature Summary
- Ultra-low dropout performance with minimal power loss under heavy loads
- Integrated pull-down transistor ensures low-ohmic output state during shutdown
- Low quiescent current consumption in disabled mode
- High noise suppression capability for sensitive analog circuits
Applications
- Analog and digital interfaces in mobile appliances
- Smartphones and mobile phone handsets
- Digital still cameras
- Portable media players
Procurement Notes
Verify the specific suffix '315' against official manufacturer documentation to confirm reel packaging specifications. Confirm RoHS compliance status and dark green halogen-free characteristics as stated in the datasheet. Ensure the component matches the WLCSP4 footprint and pinout configuration required by the design.
Selection Notes
Select this component when miniaturization is critical due to its wafer-level chip-scale package. Choose the 'P' variant specifically if an auto discharge function is required to rapidly pull down the output voltage upon disable. Ensure the application requires a fixed 2.5 V rail within the specified input voltage window.
Part Context
This part belongs to the LD6836 series of ultra-low dropout regulators manufactured using monolithic silicon technology. The series offers various fixed output voltages between 1.2 V and 3.6 V. The CX4 designation indicates the use of a 0.4 mm pitch WLCSP package, distinguishing it from the SOT753 plastic package variants available in the same family.
Replacement Considerations
LD6836CX4/25H (High-ohmic output variant)
FAQ
What is the behavior of the output pin when the enable signal is low?
The LD6836CX4/25P contains a pull-down switching transistor that provides a low-ohmic output state, effectively discharging the output capacitor.
Does this regulator require external capacitors for stability?
Yes, the datasheet specifies a minimum external load capacitance of 0.7 µF to guarantee stable regulator behavior.
