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NXP Semiconductors LD6806CX4/16P,315
- Part No.:
- LD6806CX4/16P,315
- Manufacturer:
- NXP Semiconductors
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
LD6806CX4/16P,315.pdf
- Description:
- IC REG LINEAR 1.6V 200MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:18,000
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Product details
Overview
LD6806CX4/16P,315 from NXP Semiconductors is a 1.6 V, 200 mA ultra-low-dropout linear regulator in WLCSP4 package with 60 mV dropout at full load, 30 µV RMS output noise (10 Hz–100 kHz), and active-HIGH enable control. It delivers stable low-noise power for voltage-sensitive analog circuitry in space-constrained mobile handsets and portable media devices.
For engineers reviewing the LD6806CX4/16P,315 datasheet, LD6806CX4/16P,315 pinout, LD6806CX4/16P,315 application, or LD6806CX4/16P,315 equivalent, key selection criteria include its 1.6 V fixed output, low-ohmic pull-down on disable (P-suffix), thermal shutdown at 160 °C, and compatibility with 1 µF X7R ceramic output capacitors.
Technical Context
The LD6806CX4/16P,315 uses a monolithic silicon LDO architecture with internal reference generator, current limiter, and thermal protection circuitry. Its P-suffix variant integrates a dedicated pull-down transistor to actively sink output current during disable, ensuring rapid discharge of downstream capacitance.
It operates across 2.3 V–5.5 V input range and maintains regulation down to 60 mV headroom at 200 mA. The device achieves 55 dB PSRR at 1 kHz and exhibits 0.0025 %/mA load regulation error-critical for powering precision analog sensors and RF front-ends in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.6 V ±3% over −40 °C to +85 °C ambient; enables direct replacement of legacy 1.6 V rails without external feedback. |
| Dropout Voltage | 60 mV typical at 200 mA load; allows operation from single-cell Li-ion (3.0 V min) while delivering full rated current. |
| Quiescent Current | 70 µA typical at 200 mA load; minimizes standby power loss in always-on subsystems like real-time clocks. |
| Output Noise | 30 µV RMS (10 Hz–100 kHz); supports low-noise analog signal chains including ADC references and audio codecs. |
| Enable Threshold | VIH = 1.4 V min, VIL = 0.4 V max; compatible with 1.8 V and 3.3 V logic families without level-shifting. |
| Thermal Shutdown | 160 °C junction temperature with 20 K hysteresis; prevents permanent damage during sustained overload or poor PCB thermal design. |
| Pull-down Resistance | 100 Ω typical when disabled; discharges 1 µF output capacitor to 10% VOUT in <300 µs per datasheet. |
Pinout & Package
LD6806CX4/16P,315 is housed in a wafer-level chip-scale package (WLCSP4) measuring 0.76 mm × 0.76 mm × 0.47 mm with 0.4 mm pitch and solder bumps on bottom side. The package is Pb-free, RoHS-compliant, and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Supply ground | Primary return path for load current and internal bias; must connect to solid ground plane for thermal and noise performance. |
| EN | Enable input (active HIGH) | Logic-controlled ON/OFF; drives internal pass transistor gate; requires ≥1.4 V to enable regulator output. |
| OUT | Regulated output voltage | Delivers 1.6 V to load; requires ≥1.0 µF X7R ceramic capacitor with ESR 5–500 mΩ for stability. |
| IN | Supply voltage input | Accepts 2.3–5.5 V DC input; benefits from local 1 µF ceramic decoupling near package for PSRR optimization. |
Key Features
| Feature | Design Value |
|---|---|
| Low-ohmic output stage on disable | Integrated 100 Ω pull-down transistor ensures fast, controlled discharge of output capacitance-critical for sequencing in multi-rail systems. |
| Ultra-low noise regulation | 30 µV RMS output noise enables clean power delivery to high-resolution ADCs, PLLs, and RF synthesizers without additional filtering. |
| Fast start-up time | 200 µs to reach 95% of 1.6 V output; supports rapid wake-up from deep sleep modes in portable electronics. |
| High PSRR at 1 kHz | 55 dB rejection of input ripple at 1 kHz; suppresses switching noise from upstream DC-DC converters feeding the LDO. |
| ESD robustness | 10 kV HBM ESD rating protects against handling damage during SMT assembly and field operation. |
Applications
| Mobile Phone Baseband Power | Portable Media Player Audio Codec |
|---|---|
Use Scenario: Powering baseband processor I/O banks requiring precise 1.6 V supply with minimal noise coupling into sensitive RF sections. IC Role / Device Role / Timing Role: Primary low-noise post-regulator supplying core logic voltage after main PMIC buck converter. Use Value: 60 mV dropout extends battery runtime by enabling operation down to 1.66 V input; 30 µV noise prevents audible artifacts in cellular voice paths. |
Use Scenario: Delivering clean 1.6 V bias to stereo audio DAC and headphone amplifier in flash-based MP3 players. IC Role / Device Role / Timing Role: Dedicated LDO for analog audio subsystem, isolated from noisy digital supply domains. Use Value: 55 dB PSRR blocks switching noise from system DC-DC; fast 200 µs start-up enables instant audio playback on button press. |
| Wearable Sensor Hub | Bluetooth LE Transceiver Bias |
Use Scenario: Supplying 1.6 V to MEMS accelerometer/gyroscope interface and low-power MCU in compact fitness trackers. IC Role / Device Role / Timing Role: Always-on LDO maintaining sensor bias during motion detection sleep cycles. Use Value: 70 µA quiescent current minimizes battery drain; 100 Ω pull-down ensures safe reset of sensor interface upon host disable command. |
Use Scenario: Providing regulated 1.6 V to Bluetooth Low Energy radio IC in hearing aids and wireless earbuds. IC Role / Device Role / Timing Role: Final-stage LDO for RF transceiver analog supply, decoupled from digital domain noise. Use Value: Thermal shutdown at 160 °C prevents overheating in sealed enclosures; WLCSP4 footprint saves >60% board area vs. SOT753 alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0516PDBVR | 1.6 V fixed output, 200 mA, 170 mV dropout at 200 mA, SOT-23-5 package | Larger footprint and higher dropout reduce battery efficiency in single-cell Li-ion designs | Choose if board layout lacks WLCSP reflow capability or requires through-hole prototyping support |
| MCP1700T-1602E/TT | 1.6 V fixed output, 250 mA, 600 mV dropout at 250 mA, SOT-23-3 package | No enable pin or thermal shutdown; higher dropout limits usable input voltage range | Choose only for cost-sensitive, non-thermal-critical applications where 600 mV dropout is acceptable |
Compared with TPS7A0516PDBVR and MCP1700T-1602E/TT, LD6806CX4/16P,315 offers superior dropout performance and integrated thermal protection in a 0.76 mm × 0.76 mm footprint-enabling longer battery life and smaller form factors in next-generation wearables and mobile accessories.
Availability
LD6806CX4/16P,315 is available at Aetrix Electronics and suitable for mobile handset power management, portable audio subsystems, wearable sensor hubs, and Bluetooth LE transceiver biasing requiring stable component supply and long-term lifecycle support.
Supply support for LD6806CX4/16P,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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer markets.
The LD6806 series was designed specifically for miniaturized portable electronics requiring ultra-low-noise, low-dropout regulation in wafer-level packaging-targeting space-constrained applications like smartphones, wearables, and wireless audio devices.
FAQ
What is the nominal output voltage of LD6806CX4/16P,315?
The LD6806CX4/16P,315 provides a fixed 1.6 V output voltage with ±3% tolerance over −40 °C to +85 °C ambient temperature. This value is laser-trimmed during manufacturing and does not require external resistors-ensuring consistent performance across production lots without calibration.
Does LD6806CX4/16P,315 include thermal protection?
Yes, LD6806CX4/16P,315 incorporates thermal shutdown circuitry that disables the output when junction temperature reaches 160 °C, with 20 K hysteresis to prevent oscillation. This protection is fully integrated and requires no external components-critical for reliability in sealed portable enclosures.
What package type is used for LD6806CX4/16P,315?
LD6806CX4/16P,315 uses a wafer-level chip-scale package (WLCSP4) with four solder bumps arranged in a 2×2 grid, 0.4 mm pitch, and overall dimensions of 0.76 mm × 0.76 mm × 0.47 mm. This package enables the smallest possible PCB footprint among 200 mA LDOs in its performance class.
How does the P-suffix affect LD6806CX4/16P,315 behavior during disable?
The P-suffix in LD6806CX4/16P,315 denotes an integrated low-ohmic pull-down transistor on the OUT pin. When EN is driven LOW, this 100 Ω switch actively discharges output capacitance-reducing shutdown time to under 300 µs and preventing floating voltage conditions that could disrupt downstream logic.
What is the minimum recommended output capacitor for LD6806CX4/16P,315?
LD6806CX4/16P,315 requires a minimum 1.0 µF X7R ceramic capacitor at the OUT pin, with ESR between 5 mΩ and 500 mΩ. Using a 1.0 µF capacitor ensures stability across temperature and load, meets the 200 µs start-up specification, and supports the specified 30 µV RMS noise performance.
LD6806CX4/16P,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):
- 1.6V
- 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)
LD6806CX4/16P,315 FAQ
1.How can I place an order for LD6806CX4/16P,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806CX4/16P,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 LD6806CX4/16P,315 reliable?
The price and inventory of LD6806CX4/16P,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6806CX4/16P,315 is usually 5 days.
3.What payment methods are accepted for LD6806CX4/16P,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806CX4/16P,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806CX4/16P,315?
LD6806CX4/16P,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806CX4/16P,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 LD6806CX4/16P,315?
For technical support, including LD6806CX4/16P,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806CX4/16P,315 requirements.
6.How does Aetrix verify that LD6806CX4/16P,315 is sourced from the original manufacturer or authorized distributors?
All LD6806CX4/16P,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 LD6806CX4/16P,315 meets industry standards.
7.What is the process for return or replacement of LD6806CX4/16P,315?
All LD6806CX4/16P,315 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806CX4/16P,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 LD6806CX4/16P,315 part is unused and in its original packaging.
Return procedure for LD6806CX4/16P,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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