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Product Detailed Parameters
- Description：IC REG LINEAR 1.8V 300MA 4-WLCSP
- Series：-
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：1.8V
- 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 LD6836CX4/18H,315 is a fixed-output Low DropOut regulator from the NXP LD6836 series. It provides a nominal output voltage of 1.8 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 a 0.4 mm pitch. In disabled mode, the 'H' suffix indicates a high-ohmic (three-state) output state.
Feature Summary
- Ultra-low dropout performance with a typical voltage drop of 90 mV at 300 mA output current.
- High-ohmic three-state output configuration when the enable pin is deactivated.
- Low quiescent current consumption in shutdown mode for extended battery life.
- Integrated over-temperature protection and output current limiting for system safety.
Applications
- Analog and digital interfaces requiring lower supply voltages in mobile appliances
- Smartphones and mobile phone handsets
- Cordless telephones
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm the high-ohmic output state and WLCSP4 package variant. Ensure compatibility with required external capacitor values for stability. Confirm RoHS compliance and halogen-free status if mandated by design specifications. Cross-reference the datasheet revision date to ensure alignment with current manufacturing standards.
Selection Notes
Select this component for portable applications requiring component miniaturization due to its small WLCSP footprint. Choose the 'H' variant specifically when a high-impedance output state is required upon disablement rather than an auto-discharge function. Ensure the application input voltage remains within the 2.3 V to 5.5 V operating range for proper regulation.
Part Context
This part belongs to the LD6836 series of ultra-low dropout regulators manufactured using monolithic silicon technology. The series includes variants with pull-down transistors ('P' suffix) and those with high-ohmic outputs ('H' suffix). Other package options include the SOT753 plastic surface-mounted device, while the CX4 designation specifically denotes the wafer-level chip-scale packaging suitable for space-constrained designs.
Replacement Considerations
LD6836CX4/18P,315
FAQ
What is the output state of the LD6836CX4/18H when disabled?
When disabled, the LD6836CX4/18H exhibits a high-ohmic (three-state) condition at the output pin.
Does the LD6836CX4/18H have an auto-discharge function?
No, the 'H' suffix indicates a high-ohmic output state. Auto-discharge functionality is available only in the 'P' suffix variants which contain a pull-down switching transistor.
