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NXP Semiconductors LD6806CX4/14H,315
- Part No.:
- LD6806CX4/14H,315
- Manufacturer:
- NXP Semiconductors
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
LD6806CX4/14H,315.pdf
- Description:
- IC REG LINEAR 1.4V 200MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:124,450
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Product details
Overview
LD6806CX4/14H,315 from NXP Semiconductors is a 1.4 V, 200 mA ultra-low-dropout linear regulator in a 0.76 mm × 0.76 mm WLCSP4 package with 60 mV dropout at full load, 30 µVRMS output noise (10 Hz–100 kHz), and active-HIGH enable control - designed for space-constrained mobile power rails including baseband processors and RF front-end biasing.
For engineers reviewing the LD6806CX4/14H,315 datasheet, LD6806CX4/14H,315 pinout, LD6806CX4/14H,315 application, or LD6806CX4/14H,315 equivalent, key selection criteria include its high-ohmic (3-state) output during disable, thermal shutdown at 160 °C, ±0.5% output voltage accuracy at +25 °C, and compatibility with 1 µF X7R ceramic output capacitors.
Technical Context
The LD6806CX4/14H,315 implements a PMOS pass transistor architecture enabling ultra-low dropout (60 mV @ 200 mA) and stable operation with minimal external capacitance. Its internal bandgap reference and error amplifier deliver tight line/load regulation (±0.1 %/V and 0.0025 %/mA respectively) across −40 °C to +85 °C ambient.
Thermal protection activates at 160 °C junction temperature with 20 K hysteresis, while overcurrent limiting caps peak output current at 300 mA. The device operates from 2.3 V to 5.5 V input and maintains PSRR of −55 dB at 1 kHz under 30 mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.4 V nominal, ±0.5% tolerance at +25 °C - ensures precise biasing for low-voltage logic and analog circuitry without external feedback. |
| Dropout Voltage | 60 mV typical at 200 mA - enables >95% efficiency at 1.4 V output from 1.5 V input, critical for battery-powered systems. |
| Noise (RMS) | 30 µV over 10 Hz–100 kHz - supports noise-sensitive applications like RF synthesizers and ADC reference supplies. |
| PSRR | −55 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Enable Threshold | VIH = 1.4 V min, VIL = 0.4 V max - compatible with 1.8 V and 3.3 V GPIOs without level-shifting. |
| Quiescent Current | 70 µA typical at 200 mA load - minimizes standby power in always-on subsystems. |
| Shutdown Current | 0.1 µA typical - reduces system-level leakage in deep-sleep modes. |
Pinout & Package
LD6806CX4/14H,315 uses a 0.76 mm × 0.76 mm × 0.47 mm wafer-level chip-scale package (WLCSP4) with 0.4 mm pitch and four solder bumps. It is Pb-free, RoHS-compliant, and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (A1) | Supply ground reference | Primary return path for regulator current; must connect to solid ground plane for thermal and noise performance. |
| EN (A2) | Active-HIGH enable input | Drives internal pass transistor; <0.4 V disables regulator, >1.4 V enables; no external pull-up required. |
| OUT (B1) | Regulated output voltage | Delivers 1.4 V at up to 200 mA; requires ≥1 µF X7R ceramic capacitor with ESR 5–500 mΩ for stability. |
| IN (B2) | Input supply voltage | Accepts 2.3–5.5 V; benefits from local 1 µF ceramic decoupling near the bump to reduce AC impedance. |
Key Features
| Feature | Design Value |
|---|---|
| High-ohmic output state when disabled | Isolates downstream circuitry completely - prevents back-powering and enables true 3-state behavior in multi-rail systems. |
| Ultra-low noise (30 µVRMS) | Enables clean power for RF ICs and precision analog blocks without requiring additional filtering stages. |
| Fast start-up time (200 µs) | Supports dynamic power sequencing in mobile SoCs where rapid rail activation is required after wake-up events. |
| Integrated ESD protection (10 kV HBM) | Eliminates need for external TVS diodes on IN/OUT/EN pins in handheld designs subject to user handling. |
| Thermal shutdown with hysteresis | Protects against sustained overload or poor PCB thermal design; auto-recovery occurs only after junction cools by 20 K. |
Applications
| Mobile Baseband Power | RF Front-End Bias |
|---|---|
Use Scenario: Supplying core voltage to ARM-based application processors in smartphones during active mode. IC Role / Device Role / Timing Role: Primary low-noise, low-dropout post-regulator delivering stable 1.4 V from a shared 2.8 V intermediate rail. Use Value: Enables >95% conversion efficiency at light-to-full load while meeting stringent 30 µV RMS noise requirement for digital signal integrity. |
Use Scenario: Providing bias voltage to power amplifiers and low-noise amplifiers in LTE/Wi-Fi transceivers. IC Role / Device Role / Timing Role: Local LDO supplying clean 1.4 V to PA driver stages, isolated via high-ohmic disable state during transmit/receive switching. Use Value: Prevents cross-talk between PA and LNA sections during TDD operation by eliminating back-feed through the regulator output. |
| Wearable Sensor Hub | USB-C Peripheral Power |
Use Scenario: Powering MEMS accelerometers and gyroscopes in compact fitness trackers with strict size constraints. IC Role / Device Role / Timing Role: Miniaturized 1.4 V supply for ultra-low-power sensor interface ASICs, leveraging WLCSP4 footprint (<0.6 mm²). Use Value: Reduces total solution area by 70% vs. SOT753 alternatives while maintaining 0.0025 %/mA load regulation for accurate sensor readings. |
Use Scenario: Generating 1.4 V auxiliary rail for USB-C controller logic and Type-C port configuration channels. IC Role / Device Role / Timing Role: Always-on LDO enabled by USB-C CC line detection, supporting fast enumeration with 200 µs startup. Use Value: Meets USB PD specification timing for VCONN and BMC logic power without adding discrete enable sequencing circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B142MR-G | 1.4 V fixed output, 200 mA, SOT-25 package (2.9 × 2.8 mm); dropout 150 mV @ 200 mA; no enable pin. | Lacks active-HIGH EN and high-ohmic disable - unsuitable for power-gated subsystems requiring isolation. | Select when board space allows larger package and enable functionality is unnecessary. |
| Richtek RT9013-14GB | 1.4 V fixed output, 300 mA, SOT-23-5 package; dropout 250 mV @ 300 mA; PSRR −45 dB @ 1 kHz; 50 µVRMS noise. | Higher noise and lower PSRR limit use in RF-sensitive designs; larger footprint than WLCSP4. | Choose for higher current margin (300 mA) where noise performance is secondary to cost and availability. |
Compared with XC6219B142MR-G and RT9013-14GB, LD6806CX4/14H,315 delivers superior noise/PSRR performance and true 3-state disable in the smallest footprint - making it optimal for miniaturized, noise-critical, and dynamically powered mobile subsystems.
Availability
LD6806CX4/14H,315 is available at Aetrix Electronics and suitable for mobile handset power management, wearable sensor hubs, and USB-C peripheral designs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LD6806CX4/14H,315 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and mobile markets, with leadership in power management and RF technologies.
The LD6806 series was developed specifically for ultra-miniaturized, low-noise power delivery in portable electronics - targeting applications where WLCSP packaging, sub-100 mV dropout, and integrated protection features are mandatory.
FAQ
What is the maximum input voltage rating for LD6806CX4/14H,315?
The absolute maximum input voltage on the IN pin of LD6806CX4/14H,315 is +6.0 V for transient conditions up to 4 ms. For continuous operation, the recommended input range is 2.3 V to 5.5 V. Exceeding +6.0 V risks permanent damage due to internal junction breakdown, and operation below 2.3 V prevents regulation at 1.4 V output.
Does LD6806CX4/14H,315 require an external output capacitor, and what type is recommended?
Yes, LD6806CX4/14H,315 requires a minimum 1.0 µF X7R ceramic capacitor at the OUT pin for stability, with ESR between 5 mΩ and 500 mΩ. The capacitor must maintain ≥0.7 µF across −40 °C to +125 °C, and X7R dielectric is specified to meet full temperature range requirements per the datasheet.
How does the high-ohmic output state function in LD6806CX4/14H,315 during disable?
When the EN pin voltage drops below 0.4 V, LD6806CX4/14H,315 enters shutdown and places the OUT pin in a high-impedance (3-state) condition - effectively disconnecting the output from both the pass transistor and internal ground. This prevents back-powering of upstream circuits and enables safe rail sequencing in multi-voltage systems.
What is the thermal shutdown behavior of LD6806CX4/14H,315?
LD6806CX4/14H,315 triggers thermal shutdown at 160 °C junction temperature and remains off until the junction cools by at least 20 K (to ≤140 °C). This hysteresis prevents oscillation during marginal thermal conditions and is implemented entirely within the monolithic silicon die without external components.
Can LD6806CX4/14H,315 be used with a 1.8 V enable signal?
Yes - LD6806CX4/14H,315 has a guaranteed HIGH-level enable threshold (VIH) of 1.4 V minimum, making it fully compatible with standard 1.8 V GPIO outputs. No level-shifter is needed, and the EN pin draws only leakage current (<100 nA) when held high.
LD6806CX4/14H,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 4-XFBGA, WLCSP
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.4V
- 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-WLCSP (0.76x0.76)
LD6806CX4/14H,315 FAQ
1.How can I place an order for LD6806CX4/14H,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806CX4/14H,315 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LD6806CX4/14H,315 reliable?
The price and inventory of LD6806CX4/14H,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6806CX4/14H,315 is usually 5 days.
3.What payment methods are accepted for LD6806CX4/14H,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806CX4/14H,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806CX4/14H,315?
LD6806CX4/14H,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806CX4/14H,315 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LD6806CX4/14H,315?
For technical support, including LD6806CX4/14H,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806CX4/14H,315 requirements.
6.How does Aetrix verify that LD6806CX4/14H,315 is sourced from the original manufacturer or authorized distributors?
All LD6806CX4/14H,315 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LD6806CX4/14H,315 meets industry standards.
7.What is the process for return or replacement of LD6806CX4/14H,315?
All LD6806CX4/14H,315 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806CX4/14H,315, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LD6806CX4/14H,315 part is unused and in its original packaging.
Return procedure for LD6806CX4/14H,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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