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NXP Semiconductors LD6806CX4/C33P,315
- Part No.:
- LD6806CX4/C33P,315
- Manufacturer:
- NXP Semiconductors
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
LD6806CX4/C33P,315.pdf
- Description:
- IC REG LINEAR FIXED LDO REG
- Quantity:
- Payment:
- Shipping:
Inventory:18,000
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Product details
Overview
LD6806CX4/C33P,315 from NXP Semiconductors is a 3.3 V, 200 mA ultra-low-dropout linear regulator in a 0.4 mm pitch WLCSP4 package with 60 mV dropout at full load, 30 µV RMS output noise (10 Hz–100 kHz), and active-HIGH enable control-designed for power-sensitive mobile handset and media player subsystems requiring stable low-noise bias.
For engineers reviewing the LD6806CX4/C33P,315 datasheet, LD6806CX4/C33P,315 pinout, LD6806CX4/C33P,315 application, or LD6806CX4/C33P,315 equivalent, this page delivers verified electrical specs, thermal behavior, enable threshold validation, shutdown pull-down resistance, and package-level soldering footprint data aligned to Rev. 3 (2011) product documentation.
Technical Context
The LD6806CX4/C33P,315 implements a PMOS pass transistor architecture enabling 60 mV dropout at 200 mA while maintaining 55 dB PSRR at 1 kHz and 30 µV RMS noise. Its internal reference generator and feedback loop are optimized for stability with ≥1.0 µF X7R ceramic output capacitance and support fast 200 µs startup under 200 mA load.
Thermal protection triggers at 160 °C with 20 K hysteresis, and overcurrent limiting caps peak output at 300 mA (for VO(nom) > 1.8 V). The device features integrated 10 kV HBM ESD protection and operates across −40 °C to +85 °C ambient, with junction temperature limited to +125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | 3.3 V nominal, ±2% over −30 °C to +85 °C ambient - ensures stable core/bias rail for 3.3 V logic and analog interfaces |
| Dropout voltage | 60 mV typical at 200 mA - enables operation down to VIN = 3.36 V, critical for battery-powered systems near end-of-discharge |
| Noise (RMS) | 30 µV (10 Hz–100 kHz) - supports low-noise RF, audio, and precision ADC/DAC supply domains |
| PSRR | −55 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input |
| Enable threshold | VIL ≤ 0.4 V, VIH ≥ 1.4 V - compatible with 1.8 V/3.3 V GPIO without level-shifting |
| Pull-down resistance | 100 Ω typical when disabled - actively discharges output to prevent floating or unintended wake-up in sleep states |
| Quiescent current | 0.1–1.0 µA in shutdown, 70–250 µA active - extends battery life in always-on sensor or standby circuits |
Pinout & Package
LD6806CX4/C33P,315 uses a wafer-level chip-scale package (WLCSP4) with 0.4 mm pitch, dimensions 0.76 mm × 0.76 mm × 0.51 mm (typ), Pb-free and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Supply ground | Primary return path for regulator current; must connect to solid PCB ground plane for thermal and noise performance |
| EN | Enable input (active HIGH) | Logic-controlled on/off; pulled LOW disables regulator and activates 100 Ω pull-down to OUT |
| OUT | Regulated output voltage | 3.3 V output node; requires ≥1.0 µF X7R ceramic capacitor with 5–500 mΩ ESR for stability |
| IN | Supply voltage input | Input rail (2.3–5.5 V); benefits from local 1 µF ceramic decoupling close to pin |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 60 mV at 200 mA enables single-cell Li-ion (3.0–4.2 V) or dual-cell alkaline operation without headroom loss |
| Low-noise regulation | 30 µV RMS noise supports sensitive RF front-ends and high-resolution data converters |
| Active pull-down on disable | 100 Ω internal switch discharges output rapidly, preventing latch-up or false wake-up in system sleep modes |
| Fast startup | 200 µs to reach 95% of 3.3 V output allows responsive power sequencing in portable devices |
| Robust thermal protection | 160 °C shutdown with 20 K hysteresis prevents permanent damage during sustained overload or poor heatsinking |
Applications
| Mobile Phone Baseband Power | Portable Media Player Audio Bias |
|---|---|
Use Scenario: Supplying clean 3.3 V bias to baseband processor I/O banks and memory interfaces in space-constrained smartphone PCBs. IC Role / Device Role / Timing Role: Primary low-noise LDO delivering regulated 3.3 V rail with fast transient response to dynamic processor load changes. Use Value: 60 mV dropout preserves battery runtime; 30 µV noise prevents digital crosstalk into sensitive analog sections. | Use Scenario: Powering DAC, headphone amplifier, and codec analog sections in battery-operated MP3 players and Bluetooth earbuds. IC Role / Device Role / Timing Role: Low-noise post-regulator for audio signal chain, enabled only during playback to minimize quiescent drain. Use Value: 1.0 µA shutdown current extends idle battery life; 55 dB PSRR rejects switching noise from main system DC-DC. |
| Wireless Headset Sensor Subsystem | IoT Edge Node Real-Time Clock |
Use Scenario: Providing stable 3.3 V to MEMS motion sensors and BLE radio transceivers in compact wearable form factors. IC Role / Device Role / Timing Role: Always-on LDO with controlled enable sequencing, using EN pin to synchronize sensor activation with radio transmit windows. Use Value: 200 µs startup enables precise power gating; 100 Ω pull-down prevents sensor output floating during BLE sleep intervals. | Use Scenario: Supplying backup-battery-isolated 3.3 V rail to RTC and SRAM in industrial IoT gateways with long-term offline operation. IC Role / Device Role / Timing Role: Low-quiescent LDO maintaining timekeeping accuracy during main power loss, with thermal watchdog ensuring reliability. Use Value: 0.1 µA shutdown current minimizes battery depletion; 125 °C junction limit supports extended outdoor deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0533PDBVR | 300 mA rating, 170 mV dropout at 200 mA, 25 µV noise, SOT-23-5 package | Larger footprint and higher dropout reduce suitability for ultra-thin mobile designs with tight VIN margin | Preferred where higher output current or legacy SMT placement infrastructure exists |
| MCP1700-3302E/TO | 250 mA rating, 175 mV dropout at 250 mA, 30 µV noise, TO-92 through-hole package | Through-hole mounting and larger thermal resistance (220 K/W) limit use in high-density portable PCBs | Suitable for cost-sensitive industrial controls where board space and thermal constraints are less critical |
Compared with TPS7A0533PDBVR and MCP1700-3302E/TO, LD6806CX4/C33P,315 delivers superior dropout performance in a 0.76 mm × 0.76 mm WLCSP, enabling direct integration into next-gen mobile modules where board area and battery efficiency are paramount.
Availability
LD6806CX4/C33P,315 is available at Aetrix Electronics and suitable for mobile handset power management, portable audio biasing, wireless sensor subsystems, and IoT real-time clock applications requiring stable component supply and long-term lifecycle assurance.
Supply support for LD6806CX4/C33P,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 electronics.
The LD6806 series belongs to NXP's ultra-low-noise, miniaturized LDO portfolio, engineered specifically for space-constrained portable devices demanding high PSRR, fast transient response, and robust thermal protection in sub-1 mm² packages.
FAQ
What is the nominal output voltage and tolerance of LD6806CX4/C33P,315?
The LD6806CX4/C33P,315 is factory-set to deliver 3.3 V nominal output voltage with ±2% tolerance over −30 °C to +85 °C ambient temperature. This specification is guaranteed per Table 10 of the Rev. 3 datasheet and applies under 1 mA to 200 mA load conditions with recommended 1.0 µF X7R output capacitance.
Does LD6806CX4/C33P,315 include an internal pull-down resistor on the OUT pin?
Yes, LD6806CX4/C33P,315 incorporates an internal 100 Ω pull-down transistor activated when the EN pin is driven LOW. This feature ensures rapid discharge of the output node during disable, preventing floating voltages that could cause unintended wake-up or latch-up in downstream circuitry.
What is the maximum input voltage rating for LD6806CX4/C33P,315?
The absolute maximum input voltage for LD6806CX4/C33P,315 is +6.0 V for transient events up to 4 ms, as specified in Table 7 of the datasheet. For continuous operation, the recommended input range is 2.3 V to 5.5 V - exceeding this may trigger thermal shutdown or degrade long-term reliability.
Can LD6806CX4/C33P,315 be used with ceramic capacitors smaller than 1.0 µF?
No - the minimum recommended external output capacitance for LD6806CX4/C33P,315 is 1.0 µF (X7R dielectric), with ESR between 5 mΩ and 500 mΩ. Using lower capacitance risks instability, overshoot, or failure to meet startup/shutdown timing specifications per Section 10.1 and Table 11 of the datasheet.
What package type and dimensions does LD6806CX4/C33P,315 use?
LD6806CX4/C33P,315 uses the WLCSP4 package with backside coating (per Table 4 and Figure 36), measuring 0.76 mm × 0.76 mm × 0.51 mm (typical height), 0.4 mm bump pitch, and 2×2 bump array. Its solder footprint requires 0.25 mm pad diameter and 0.4 mm center-to-center spacing per Figure 39 and Table 14.
LD6806CX4/C33P,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- LD6806
- Package/Case:
- 4-XFBGA, WLCSP
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3.3V
- 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 (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-WLCSP (0.76x0.76)
LD6806CX4/C33P,315 FAQ
1.How can I place an order for LD6806CX4/C33P,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806CX4/C33P,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/C33P,315 reliable?
The price and inventory of LD6806CX4/C33P,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/C33P,315 is usually 5 days.
3.What payment methods are accepted for LD6806CX4/C33P,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806CX4/C33P,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806CX4/C33P,315?
LD6806CX4/C33P,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806CX4/C33P,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/C33P,315?
For technical support, including LD6806CX4/C33P,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806CX4/C33P,315 requirements.
6.How does Aetrix verify that LD6806CX4/C33P,315 is sourced from the original manufacturer or authorized distributors?
All LD6806CX4/C33P,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/C33P,315 meets industry standards.
7.What is the process for return or replacement of LD6806CX4/C33P,315?
All LD6806CX4/C33P,315 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806CX4/C33P,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/C33P,315 part is unused and in its original packaging.
Return procedure for LD6806CX4/C33P,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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