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NXP Semiconductors LD6806CX4/12P,315
- Part No.:
- LD6806CX4/12P,315
- Manufacturer:
- NXP Semiconductors
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
LD6806CX4/12P,315.pdf
- Description:
- IC REG LINEAR 1.2V 200MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,213
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Product details
Overview
LD6806CX4/12P,315 from NXP Semiconductors is a 1.2 V, 200 mA ultra-low-dropout linear regulator in WLCSP4 package with 60 mV dropout at full load, 30 µVRMS output noise (10 Hz–100 kHz), and active-HIGH enable pin. It features low-ohmic pull-down output during disable state, thermal shutdown, overcurrent protection, and is optimized for space-constrained mobile power rails including baseband processors and RF front-end biasing.
For engineers reviewing the LD6806CX4/12P,315 datasheet, LD6806CX4/12P,315 pinout, LD6806CX4/12P,315 application, or LD6806CX4/12P,315 equivalent, key selection criteria include its 1.2 V fixed output, 2.3–5.5 V input range, sub-1 µA shutdown quiescent current, 200 µs startup time, and WLCSP4 footprint compatibility with high-density PCB layouts in portable electronics.
Technical Context
The LD6806CX4/12P,315 implements a PMOS pass transistor architecture enabling ultra-low dropout voltage and stable regulation under dynamic load conditions. Its internal reference generator, error amplifier, and thermal watchdog operate independently of enable state to ensure safe shutdown at 160 °C with 20 K hysteresis.
This variant belongs to the LD6806x/xxP family, meaning it integrates a dedicated pull-down NMOS switch at the output pin-ensuring rapid discharge and defined low-impedance state when disabled, unlike H-suffix variants that enter high-impedance mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V ±2 % over −40 °C to +85 °C ambient; supports core logic and low-voltage I/O rails. |
| Dropout Voltage | 60 mV typical at 200 mA load; enables efficient operation with minimal headroom (e.g., 1.26 V input suffices). |
| Quiescent Current | 0.1–1.0 µA in shutdown (VEN ≤ 0.4 V); critical for battery-backed standby modes. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz); suitable for noise-sensitive analog circuits like ADC references or RF synthesizers. |
| PSRR | −55 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Startup Time | 200 µs to reach 95 % of 1.2 V; meets fast wake-up timing requirements in mobile SoC power sequencing. |
| Enable Threshold | VIH = 1.4 V min, VIL = 0.4 V max; compatible with 1.8 V and 3.3 V GPIO control without level-shifting. |
Pinout & Package
LD6806CX4/12P,315 uses a wafer-level chip-scale package (WLCSP4) with 0.4 mm pitch, dimensions 0.76 mm × 0.76 mm × 0.47 mm, and Pb-free/RoHS-compliant construction.
| 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) | Controls regulator on/off; driven by host processor GPIO; no external pull-up required due to internal bias. |
| OUT | Regulated output | Delivers 1.2 V to load; includes integrated pull-down transistor (Rpd = 100 Ω typical) for fast discharge when disabled. |
| IN | Input supply | Accepts 2.3–5.5 V; requires ≥1 µF ceramic capacitor with ESR 5–500 mΩ for stability per datasheet Section 10.1. |
Key Features
| Feature | Design Value |
|---|---|
| Low-ohmic output during disable | 100 Ω typical pull-down resistance ensures rapid VOUT discharge to prevent floating or unintended biasing of downstream circuitry. |
| Ultra-low noise regulation | 30 µVRMS output noise enables clean power for precision analog blocks without requiring additional filtering stages. |
| Thermal and overcurrent protection | Auto-shutdown at 160 °C junction temperature with 20 K hysteresis and current limiting prevents damage during fault conditions. |
| Miniaturized WLCSP4 footprint | 0.76 mm × 0.76 mm area saves >70 % board space vs. SOT753; ideal for smartphones, wearables, and hearing aids. |
| ESD robustness | 10 kV HBM rating allows handling in standard assembly environments without special ESD controls beyond IPC-610 Class 2. |
Applications
| Mobile Baseband Power | RF Front-End Biasing |
|---|---|
Use Scenario: Supplying 1.2 V core voltage to LTE/5G baseband processors during active transmission bursts. IC Role / Device Role / Timing Role: Primary low-noise post-regulator delivering stable rail with fast transient response and minimal dropout under 200 mA pulsed loads. Use Value: Enables reliable digital logic operation while minimizing heat generation and extending battery life via 60 mV dropout and sub-1 µA shutdown current. |
Use Scenario: Providing clean 1.2 V bias to power amplifiers and low-noise amplifiers in cellular handset RF modules. IC Role / Device Role / Timing Role: Low-noise local regulator decoupling RF ICs from noisy system supplies; pull-down ensures fast turn-off between transmit/receive cycles. Use Value: 30 µVRMS noise and −55 dB PSRR preserve signal integrity and EVM performance; 200 µs startup aligns with RF subsystem wake-up timing. |
| Wearable Sensor Hub | Portable Audio Codec |
Use Scenario: Powering ultra-low-power sensor fusion hubs (accelerometer, gyroscope, magnetometer) in smartwatches and hearables. IC Role / Device Role / Timing Role: Always-on LDO supplying 1.2 V to MCU and sensors; leverages 0.1 µA shutdown current during deep sleep modes. Use Value: WLCSP4 size fits tight mechanical envelopes; thermal protection prevents overheating in sealed enclosures with limited airflow. |
Use Scenario: Delivering regulated 1.2 V to audio DAC/ADC cores in Bluetooth headphones and portable speakers. IC Role / Device Role / Timing Role: Low-noise analog supply rail ensuring high SNR and THD+N performance; pull-down prevents pop/click during mute transitions. Use Value: 30 µVRMS noise directly improves audio dynamic range; 100 Ω pull-down eliminates residual output voltage that could cause audible artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LD6806CX4/12H,315 | Same WLCSP4 package and 1.2 V output, but high-impedance (3-state) output when disabled instead of pull-down. | Suitable where output must float during disable (e.g., shared bus systems), not where fast discharge is required. | Select LD6806CX4/12H,315 only if downstream circuitry tolerates undefined output voltage during disable. |
| Torex XC6210B122MR-G | 1.2 V, 200 mA LDO in USP-4 package (1.2 × 1.6 mm); 70 mV dropout, 40 µVRMS noise, no integrated pull-down. | Larger footprint and higher noise; lacks active discharge, requiring external circuitry for fast VOUT decay. | Choose only if WLCSP4 assembly capability is unavailable or if Torex's AEC-Q200 qualification is mandatory. |
Compared with LD6806CX4/12H,315 and XC6210B122MR-G, the LD6806CX4/12P,315 uniquely combines ultra-miniature WLCSP4 packaging, 60 mV dropout, 30 µVRMS noise, and integrated 100 Ω pull-down-making it optimal for space- and noise-critical mobile applications requiring controlled output discharge.
Availability
LD6806CX4/12P,315 is available at Aetrix Electronics and suitable for mobile phone handsets, wearable sensor hubs, and portable audio codecs requiring stable component supply with guaranteed long-term manufacturability and RoHS compliance.
Supply support for LD6806CX4/12P,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, battery-powered portable electronics-emphasizing ultra-low dropout, low noise, and ultra-small packaging to meet stringent space and efficiency demands in smartphones and wearables.
FAQ
What is the output voltage tolerance of the LD6806CX4/12P,315 over temperature?
The LD6806CX4/12P,315 delivers 1.2 V output with ±2 % tolerance at +25 °C and ±3 % over the full −40 °C to +85 °C operating ambient range, as specified in Table 10 of the datasheet. This ensures reliable core voltage delivery to 1.2 V logic domains across environmental extremes without external trimming.
Does the LD6806CX4/12P,315 require an external output capacitor, and what are the specifications?
Yes, the LD6806CX4/12P,315 requires a minimum 1.0 µF ceramic output capacitor with ESR between 5 mΩ and 500 mΩ, as stated in Table 11 and Section 10.1. X7R dielectric is recommended to maintain capacitance stability across −40 °C to +125 °C, and the capacitor directly affects shutdown time (tsd(reg)).
How does the pull-down function of the LD6806CX4/12P,315 behave during disable?
When the EN pin is pulled LOW, the LD6806CX4/12P,315 activates an internal NMOS pull-down transistor at the OUT pin with typical resistance of 100 Ω, discharging the output capacitor rapidly. This behavior is confirmed in Figure 5 (block diagram) and Table 10 (Rpd parameter), distinguishing it from H-suffix variants.
What is the maximum allowable input voltage for the LD6806CX4/12P,315?
The absolute maximum input voltage for the LD6806CX4/12P,315 is +6.0 V for 4 ms transients, per Table 7. For continuous operation, the recommended input range is 2.3 V to 5.5 V (Table 8). Exceeding 5.5 V continuously risks exceeding thermal limits or triggering overvoltage protection.
Is the LD6806CX4/12P,315 compatible with lead-free reflow soldering processes?
Yes, the LD6806CX4/12P,315 is Pb-free and qualified for lead-free reflow per J-STD-020C. Its WLCSP4 package thickness (0.47 mm) and volume (<350 mm³) specify a peak reflow temperature of 260 °C, as detailed in Table 15 and Section 14.3 of the datasheet.
LD6806CX4/12P,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 4-XFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 0.1V @ 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)
LD6806CX4/12P,315 FAQ
1.How can I place an order for LD6806CX4/12P,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806CX4/12P,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 LD6806CX4/12P,315 reliable?
The price and inventory of LD6806CX4/12P,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6806CX4/12P,315 is usually 5 days.
3.What payment methods are accepted for LD6806CX4/12P,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806CX4/12P,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806CX4/12P,315?
LD6806CX4/12P,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806CX4/12P,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 LD6806CX4/12P,315?
For technical support, including LD6806CX4/12P,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806CX4/12P,315 requirements.
6.How does Aetrix verify that LD6806CX4/12P,315 is sourced from the original manufacturer or authorized distributors?
All LD6806CX4/12P,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 LD6806CX4/12P,315 meets industry standards.
7.What is the process for return or replacement of LD6806CX4/12P,315?
All LD6806CX4/12P,315 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806CX4/12P,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 LD6806CX4/12P,315 part is unused and in its original packaging.
Return procedure for LD6806CX4/12P,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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