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NXP Semiconductors LD6806CX4/14P,315
- Part No.:
- LD6806CX4/14P,315
- Manufacturer:
- NXP Semiconductors
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
LD6806CX4/14P,315.pdf
- Description:
- IC REG LINEAR 1.4V 200MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:18,000
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Product details
Overview
LD6806CX4/14P,315 from NXP Semiconductors is a 1.4 V, 200 mA ultra-low-dropout linear regulator in WLCSP4 package (0.76 mm × 0.76 mm × 0.47 mm), featuring 60 mV dropout at 200 mA, 30 µVRMS output noise (10 Hz–100 kHz), and active-HIGH enable with low-ohmic pull-down output stage. It targets space-constrained mobile power rails such as baseband processor core supplies in smartphones.
For engineers reviewing the LD6806CX4/14P,315 datasheet, LD6806CX4/14P,315 pinout, LD6806CX4/14P,315 application, or LD6806CX4/14P,315 equivalent, key selection criteria include its 1.4 V fixed output, thermal shutdown (160 °C), current limiting, 55 dB PSRR at 1 kHz, and compatibility with 1 µF X7R ceramic output capacitors for stable operation across −40 °C to +85 °C ambient.
Technical Context
The LD6806CX4/14P,315 implements a PMOS pass transistor architecture enabling ultra-low dropout voltage and high PSRR. Its internal reference generator feeds a precision error amplifier that drives the pass element, while dedicated thermal protection and overcurrent circuits enforce safe operation under fault conditions.
Unlike high-ohmic variants (e.g., LD6806CX4/14H), this P-suffix device integrates a pull-down switching transistor on the OUT pin, ensuring rapid discharge and defined low-impedance state during disable-critical for sequencing-sensitive SoC power domains requiring controlled rail collapse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 1.4 V ±2% over −40 °C to +85 °C; enables direct powering of 1.4 V I/O or core rails without external feedback. |
| Dropout voltage | 60 mV typical at 200 mA load; allows operation with VIN as low as 1.46 V, maximizing battery runtime in single-cell Li-ion systems. |
| Noise (RMS) | 30 µV over 10 Hz–100 kHz bandwidth; supports noise-sensitive analog blocks like ADCs or RF front-ends without additional filtering. |
| PSRR | −55 dB at 1 kHz; suppresses ripple from noisy switcher outputs feeding the LDO input, reducing need for bulk input capacitance. |
| Quiescent current | 70–100 µA during regulation; 0.1–1.0 µA in shutdown (VEN ≤ 0.4 V); extends standby time in always-on subsystems. |
| 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. |
| Thermal shutdown | Triggers at 160 °C junction temperature with 20 K hysteresis; prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
LD6806CX4/14P,315 uses a 4-bump Wafer-Level Chip-Scale Package (WLCSP4) measuring 0.76 mm × 0.76 mm × 0.47 mm with 0.4 mm pitch. Solder bumps are arranged in a 2×2 grid; top-side index area identifies bump A1.
| 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; pulls OUT low via internal NMOS when disabled-enables clean power sequencing. |
| OUT | Regulated output | 1.4 V supply node; requires ≥1 µF X7R ceramic capacitor with ESR 5–500 mΩ for stability and transient response. |
| IN | Input supply | Accepts 2.3–5.5 V; sensitive to input ripple-benefits from local 1 µF ceramic decoupling near the package. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 60 mV at full 200 mA load enables use with tightly regulated intermediate rails or aging batteries. |
| Low-noise regulation | 30 µVRMS noise ensures clean power for precision analog circuitry without added LC filters. |
| Fast start-up | 200 µs turn-on time supports dynamic power gating in processors and modems. |
| Integrated pull-down | Active-low-ohmic OUT stage during disable guarantees rapid, controlled discharge-eliminates floating rail risks. |
| Robust protection | Thermal shutdown (160 °C), current limiting, and 10 kV HBM ESD rating ensure reliability in handheld environments. |
Applications
| Smartphone Baseband Core Supply | Wearable Sensor Hub Power |
|---|---|
Use Scenario: Powers ARM Cortex-A/M series application processor cores requiring stable 1.4 V at up to 200 mA with tight transient response. IC Role / Device Role / Timing Role: Primary low-noise post-regulator delivering clean DC from a buck converter's switched output. Use Value: 60 mV dropout extends usable battery range; 30 µV noise avoids ADC quantization errors in integrated audio codecs. | Use Scenario: Supplies MEMS accelerometer, gyroscope, and environmental sensor clusters in compact wearables. IC Role / Device Role / Timing Role: Always-on LDO maintaining 1.4 V rail during sleep modes with sub-1 µA shutdown current. Use Value: 0.1 µA shutdown quiescent current maximizes coin-cell battery life; WLCSP4 footprint saves >70% board area vs. SOT753. |
| Bluetooth LE Audio Transceiver Bias | Industrial Handheld Scanner Logic Rail |
Use Scenario: Provides regulated 1.4 V to Bluetooth 5.0+ audio SoCs handling simultaneous multi-mic processing and LE audio streaming. IC Role / Device Role / Timing Role: Low-noise, fast-transient LDO supporting burst-mode RF transmission and digital signal processing. Use Value: 55 dB PSRR at 1 kHz rejects switching noise from shared PMIC; 200 µs startup synchronizes with BLE connection events. | Use Scenario: Delivers 1.4 V logic supply to FPGA-configurable barcode scanning engines operating in wide-temperature industrial environments. IC Role / Device Role / Timing Role: Temperature-stable LDO with guaranteed operation from −40 °C to +85 °C ambient. Use Value: ±2% output accuracy over temperature ensures reliable FPGA configuration and CMOS logic margins; 160 °C thermal cutoff prevents field failures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0514PDBVR | 1.4 V fixed output, 200 mA, 170 mV dropout (typ), SOT-23-5 package (2.9 mm × 1.6 mm). | Larger footprint and higher dropout reduce battery efficiency in space-constrained portable designs. | Choose when board layout permits larger package and lower cost outweighs miniaturization needs. |
| MCP1700T-1402E/TT | 1.4 V fixed output, 250 mA, 600 mV dropout (typ), SOT-23-3 package; no enable pin or thermal shutdown. | Lacks EN control and protection features-unsuitable for sequenced or safety-critical power domains. | Select only for simple, non-sequenced rails where cost is primary and thermal margin is ample. |
Compared with TPS7A0514PDBVR and MCP1700T-1402E/TT, LD6806CX4/14P,315 delivers superior miniaturization (0.58 mm² vs. 4.64 mm² and 2.4 mm²), lowest dropout for extended battery life, and integrated enable + thermal + current protection-making it optimal for next-gen compact, intelligent edge devices.
Availability
LD6806CX4/14P,315 is available at Aetrix Electronics and suitable for smartphone baseband supplies, wearable sensor hubs, Bluetooth LE audio transceivers, and industrial handheld scanners requiring stable component supply with consistent WLCSP4 sourcing.
Supply support for LD6806CX4/14P,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 mobile markets.
The LD6806 series belongs to NXP's ultra-low-noise, miniaturized LDO portfolio designed specifically for power integrity in space- and noise-constrained portable electronics, emphasizing wafer-level packaging and robust protection.
FAQ
What is the nominal output voltage and tolerance of LD6806CX4/14P,315?
The LD6806CX4/14P,315 provides a fixed 1.4 V output with ±2% tolerance over −40 °C to +85 °C ambient temperature and 1 mA to 200 mA load current. This specification is guaranteed per Table 10 in the official NXP datasheet Rev. 3, ensuring predictable voltage margining for 1.4 V logic and analog circuits without external trimming.
Does LD6806CX4/14P,315 require an external output capacitor, and what type is recommended?
Yes, LD6806CX4/14P,315 requires a minimum 1.0 µF X7R ceramic capacitor on the OUT pin for stability, with ESR between 5 mΩ and 500 mΩ. The datasheet specifies X7R dielectric due to its stable capacitance over −40 °C to +125 °C, ensuring reliable regulation across full operating temperature and voltage ranges.
How does the P-suffix in LD6806CX4/14P,315 affect its disable behavior compared to H-suffix variants?
The P-suffix in LD6806CX4/14P,315 indicates an integrated pull-down transistor on the OUT pin, forcing a low-ohmic state (<100 Ω) during disable. In contrast, H-suffix variants enter high-ohmic (3-state) mode. This makes LD6806CX4/14P,315 ideal for applications requiring controlled rail discharge-such as SoC power sequencing-where floating outputs could cause latch-up or leakage.
What is the maximum allowable input voltage for LD6806CX4/14P,315, and what happens beyond that limit?
LD6806CX4/14P,315 supports an absolute maximum input voltage of +6.0 V for 4 ms transients, with recommended operation between 2.3 V and 5.5 V. Exceeding +6.0 V risks permanent damage to the internal PMOS pass transistor and reference circuitry, as specified in Table 7 (Limiting Values) of the NXP datasheet.
Can LD6806CX4/14P,315 be used in automotive applications?
LD6806CX4/14P,315 is qualified for consumer applications per NX2-00001 and operates from −40 °C to +85 °C ambient, but it is not AEC-Q200 qualified. For automotive use, NXP recommends alternatives like the ASL3410 or other AEC-Q100-compliant LDOs-LD6806CX4/14P,315 should be limited to non-safety-critical infotainment or accessory modules with validated thermal derating.
LD6806CX4/14P,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)
LD6806CX4/14P,315 FAQ
1.How can I place an order for LD6806CX4/14P,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806CX4/14P,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 LD6806CX4/14P,315 reliable?
The price and inventory of LD6806CX4/14P,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6806CX4/14P,315 is usually 5 days.
3.What payment methods are accepted for LD6806CX4/14P,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806CX4/14P,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806CX4/14P,315?
LD6806CX4/14P,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806CX4/14P,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 LD6806CX4/14P,315?
For technical support, including LD6806CX4/14P,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806CX4/14P,315 requirements.
6.How does Aetrix verify that LD6806CX4/14P,315 is sourced from the original manufacturer or authorized distributors?
All LD6806CX4/14P,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 LD6806CX4/14P,315 meets industry standards.
7.What is the process for return or replacement of LD6806CX4/14P,315?
All LD6806CX4/14P,315 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806CX4/14P,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 LD6806CX4/14P,315 part is unused and in its original packaging.
Return procedure for LD6806CX4/14P,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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