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Product Detailed Parameters
- Description：IC REG LINEAR 1.2V 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)：1.2V
- 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 LD6836CX4/12P,315 is a fixed-output Low DropOut regulator from the NXP LD6836 series. It provides a nominal output voltage of 1.2 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. Packaged in a 0.76 mm x 0.76 mm WLCSP-4 with 0.4 mm pitch, it includes an integrated pull-down transistor for auto discharge functionality when disabled.
Feature Summary
- Integrated pull-down switching transistor provides a low-ohmic output state during shutdown for rapid discharge.
- Ultra-low dropout performance ensures high efficiency and minimized power consumption under varying load conditions.
- Low quiescent current operation in shutdown mode significantly reduces standby power requirements.
- Built-in over-temperature protection and output current limiter safeguard against thermal overload and short circuits.
Applications
- Analog and digital interfaces requiring lower supply voltages in mobile appliances
- Smartphones and mobile phone handsets
- Cordless telephones
Procurement Notes
Verify the specific suffix '315' against official documentation to confirm reel packaging specifications. Ensure compatibility with the required 1.2 V fixed output and WLCSP-4 footprint. Confirm RoHS compliance status and check for any obsolescence notices or lifecycle changes before finalizing procurement plans.
Selection Notes
Select this component for applications necessitating minimal board space due to its compact WLCSP-4 package. Choose this variant specifically when an active pull-down mechanism is required to discharge the output line upon disablement. Verify that the system input voltage remains within the 2.3 V to 5.5 V operational window.
Part Context
This part belongs to the LD6836 series of ultra-low dropout regulators designed for portable electronics. The series offers various fixed output voltages between 1.2 V and 3.6 V. The CX4 designation indicates the Wafer-Level Chip-Scale Package format, optimized for miniaturization in space-constrained mobile devices.
Replacement Considerations
LD6836CX4/12H: Identical electrical characteristics but features a high-ohmic (3-state) output instead of the pull-down function.
FAQ
What is the behavior of the output pin when the enable signal is low?
The LD6836CX4/12P contains a pull-down switching transistor that provides a low-ohmic output state, actively discharging the output line.
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.
