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Product Detailed Parameters
- Description：IC REG LINEAR 1.8V 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)：1.8V
- 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 LD6816CX4/18H,315 is a fixed-output Low DropOut regulator from the NXP LD6816 series. It provides a nominal output voltage of 1.8 V with a maximum continuous 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 and dimensions of 0.76 mm x 0.76 mm. Key electrical characteristics include a typical quiescent current of 0.1 µA in shutdown mode, 30 µV RMS output noise (10 Hz to 100 kHz), and 55 dB PSRR at 1 kHz.
Feature Summary
- Ultra-low dropout performance with minimal voltage loss at rated current
- Low noise operation suitable for sensitive analog and digital interfaces
- High-ohmic three-state output when disabled
- Integrated over-temperature protection and output current limiter
Applications
- Smart phones and mobile phone handsets
- Cordless telephones
- Digital still cameras
- Mobile internet devices
- Portable media players
Procurement Notes
Verify the specific suffix '315' against official manufacturer documentation to confirm reel packaging specifications and tape-and-reel quantities. Confirm RoHS compliance status and dark green halogen-free certification requirements for your manufacturing process. Ensure the high-ohmic output variant matches system design needs compared to pull-down versions.
Selection Notes
Select this component for portable applications requiring miniaturization due to its small WLCSP footprint. Choose the 'H' suffix version specifically if a high-ohmic state is required upon disablement rather than an auto-discharge function. Ensure external capacitors meet the minimum ESR and capacitance values for stability.
Part Context
This part belongs to the LD6816 series of ultra-low dropout regulators manufactured by NXP Semiconductors. The series offers fixed output voltages ranging from 1.2 V to 3.6 V. All devices are built using monolithic silicon technology and are designed for low-power portable electronics.
Replacement Considerations
LD6816CX4/18P,315: Identical electrical specifications but features a pull-down switching transistor for auto discharge instead of a high-ohmic state.
FAQ
What is the output state of the LD6816CX4/18H when the enable pin is low?
When disabled, the LD6816CX4/18H exhibits a high-ohmic (three-state) condition at the output pin.
Does this regulator support auto-discharge functionality?
No, the 'H' suffix indicates a high-ohmic output state. Auto-discharge is only available in the 'P' and 'CxxP' variants.
