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Product Detailed Parameters
- Description：IC REG LINEAR 2.9V 200MA 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)：2.9V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.1V @ 200mA
- Current - Output：200mA
- 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 LD6806CX4/29P,315 is a fixed-output Low-DropOut regulator from NXP Semiconductors with a nominal output voltage of 2.9 V. It operates within an input voltage range of 2.3 V to 5.5 V and supports a maximum output current of 200 mA. The device utilizes a WLCSP4 package with a 0.4 mm pitch. Key electrical characteristics include a typical dropout voltage of 60 mV at 200 mA, a quiescent current of 70 µA, and an RMS output noise voltage of 30 µV over the 10 Hz to 100 kHz bandwidth.
Feature Summary
- Features a low-ohmic pull-down switching transistor that ensures a defined low-impedance state at the output pin when the device is disabled.
- Provides integrated thermal protection and current limiting to safeguard the regulator under overload or high-temperature conditions.
- Includes built-in electrostatic discharge (ESD) protection rated at 10 kV according to the Human Body Model standard.
Applications
- Analog and digital interfaces requiring lower than standard supply voltages in mobile appliances
- Mobile phone handsets and personal digital devices requiring component miniaturization
- Cordless telephones and media players
Procurement Notes
Verify the specific suffix '315' against official documentation to confirm reel packaging specifications. Confirm the 'P' designation indicates the low-ohmic output variant rather than the high-ohmic version. Ensure compatibility with lead-free manufacturing processes as the device is RoHS compliant. Validate that the required 2.9 V output aligns with the target circuit design before procurement.
Selection Notes
Select this component for applications demanding ultra-low dropout performance and minimal footprint size. The WLCSP4 package is suitable for space-constrained designs where board area is limited. Consider the 2.9 V fixed output for powering specific logic levels or analog circuits directly without additional adjustment components. Verify that the external load capacitance meets the minimum stability requirements specified in the datasheet.
Part Context
This part belongs to the LD6806 series of ultra-low-dropout regulators designed for mobile and portable electronics. The series offers various output voltages and package options, including WLCSP, SOT886, and SOT753. The LD6806CX4/29P specifically provides a fixed 2.9 V output in the smallest available wafer-level chip-size package format.
Replacement Considerations
LD6806CX4/29H: Identical electrical performance but features a high-ohmic (3-state) output when disabled instead of a low-ohmic state.
FAQ
What is the output state of the LD6806CX4/29P when the enable pin is low?
When the enable pin is low, the LD6806CX4/29P activates its internal pull-down switching transistor, resulting in a low-ohmic output stage.
Does the LD6806CX4/29P require an external capacitor for stability?
Yes, the device requires an external load capacitor with a minimum value of 0.7 µF and an ESR between 5 mΩ and 500 mΩ to guarantee stable regulator behavior.
