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NXP Semiconductors LD6806F/18P,115
- Part No.:
- LD6806F/18P,115
- Manufacturer:
- NXP Semiconductors
- Package:
- 6-XFDFN
- Datasheet:
-
LD6806F/18P,115.pdf
- Description:
- IC REG LINEAR 1.8V 200MA 6XSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,990
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Product details
Overview
LD6806F/18P,115 from NXP Semiconductors is a 1.8 V, 200 mA ultra-low-dropout linear regulator in SOT886 (XSON6) package with 80 mV typical dropout at full load, 30 µV RMS output noise (10 Hz–100 kHz), and active-HIGH enable pin. It delivers stable low-noise power for RF and analog circuitry in space-constrained mobile applications.
For engineers reviewing the LD6806F/18P,115 datasheet, LD6806F/18P,115 pinout, LD6806F/18P,115 application, or LD6806F/18P,115 equivalent, key selection criteria include its low-ohmic pull-down output stage 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 LD6806F/18P,115 uses a monolithic silicon LDO architecture with internal reference generator, overcurrent protection, and thermal watchdog. Its enable input (VEN) has defined HIGH/LOW thresholds (VIH ≥ 1.4 V, VIL ≤ 0.4 V), independent of input voltage.
Unlike H-variant devices, the /18P suffix confirms integrated low-ohmic pull-down transistor (Rpd = 100 Ω typ) at OUT during disable, ensuring rapid discharge of downstream capacitance without external components. Shutdown time is 300 µs with 1 µF load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | 1.8 V nominal, ±0.5 % accuracy at +25 °C - ensures precise biasing for 1.8 V I/O domains and low-voltage logic. |
| Dropout voltage | 80 mV typical at 200 mA - enables operation down to VIN = 1.88 V, maximizing battery runtime in single-cell Li-ion systems. |
| PSRR | −55 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters feeding sensitive analog/RF stages. |
| Output noise | 30 µV RMS (10 Hz–100 kHz) - meets low-noise requirements for ADC references, PLL VCO supplies, and audio codecs. |
| Quiescent current | 70–100 µA operating, 0.1–1.0 µA in shutdown - extends standby time in always-on sensor nodes and IoT endpoints. |
| Enable threshold | VIH ≥ 1.4 V, VIL ≤ 0.4 V - compatible with 1.8 V and 3.3 V GPIOs without level-shifting. |
| Thermal shutdown | 160 °C with 20 K hysteresis - protects against sustained overload or poor PCB thermal design without latch-up. |
Pinout & Package
SOT886 (XSON6) plastic extremely thin small outline package, no leads, 6 terminals, body size 1.0 mm × 1.45 mm × 0.5 mm, Pb-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT | Regulator output voltage | Delivers regulated 1.8 V; includes integrated 100 Ω pull-down to GND when EN = LOW. |
| n.c. | Not connected | No internal connection; must be left floating or grounded per layout best practice. |
| GND | Supply ground | Primary return path for load current and internal bias; requires low-impedance PCB plane connection. |
| EN | Device enable input; active HIGH | Logic-controlled on/off; VIH ≥ 1.4 V enables regulation, VIL ≤ 0.4 V forces shutdown and pull-down activation. |
| n.c. | Not connected | No internal connection; must be left floating or grounded per layout best practice. |
| IN | Supply voltage input | Accepts 2.3 V to 5.5 V; requires local 1 µF ceramic decoupling close to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Low-ohmic output during disable | 100 Ω pull-down resistor discharges output capacitance in <300 µs - eliminates need for external bleed resistors in power sequencing. |
| Ultra-low noise output | 30 µV RMS (10 Hz–100 kHz) - supports high-resolution SAR ADCs and low-phase-noise RF synthesizers without additional filtering. |
| Fast start-up time | 200 µs to reach 95 % of 1.8 V - enables rapid wake-up from deep sleep in portable devices. |
| ESD robustness | 10 kV HBM - withstands handling and board-level ESD events without derating or external protection diodes. |
| Thermal protection | 160 °C shutdown with 20 K hysteresis - prevents permanent damage during transient overloads or airflow loss. |
Applications
| Mobile Phone Baseband Power | Wearable Sensor Hub Supply |
|---|---|
Use Scenario: Powers 1.8 V I/O banks and low-power microcontrollers in smartphone application processors. IC Role / Device Role / Timing Role: Primary low-noise LDO delivering clean 1.8 V rail with fast enable/disable for dynamic power gating. Use Value: Enables >95 % battery utilization by operating down to 1.88 V input while maintaining ±0.5 % output accuracy across −40 °C to +85 °C. | Use Scenario: Supplies MEMS accelerometers, gyroscopes, and BLE radio subsystems in compact wearables. IC Role / Device Role / Timing Role: Low-quiescent-current (0.1 µA shutdown) LDO with integrated pull-down for safe power-down sequencing. Use Value: Eliminates external discharge resistors, reducing BOM count and PCB area in sub-10 mm² form factors. |
| Industrial IoT Edge Node | Automotive Infotainment Audio Codec |
Use Scenario: Provides stable 1.8 V supply to ultra-low-power MCUs and LoRaWAN transceivers in remote monitoring nodes. IC Role / Device Role / Timing Role: High-PSRR (−55 dB @ 1 kHz) LDO rejecting noise from shared 3.3 V DC-DC rails. Use Value: Maintains reliable wireless link integrity by suppressing switching ripple that would otherwise degrade SNR and packet error rate. | Use Scenario: Powers analog front-end and DAC sections of automotive-grade audio codecs requiring ultra-low noise. IC Role / Device Role / Timing Role: Low-RMS-noise (30 µV) LDO with thermal watchdog for safety-critical infotainment subsystems. Use Value: Meets AEC-Q100 stress test requirements via integrated 160 °C thermal shutdown and 10 kV HBM ESD rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B182MR-G | 1.8 V, 200 mA, SOT-25; 120 mV dropout at 200 mA; no integrated pull-down; 45 µV noise. | Lacks low-ohmic discharge; requires external resistor for output discharge; higher dropout reduces usable input range. | Select when footprint compatibility with SOT-25 is required and pull-down functionality is implemented externally. |
| Richtek RT9013-18GB | 1.8 V, 300 mA, SOT-23-5; 250 mV dropout at 300 mA; 40 µV noise; 1.5 µA quiescent current in shutdown. | Higher dropout and quiescent current; larger SOT-23-5 footprint; no thermal hysteresis spec. | Choose only if higher output current headroom (300 mA) is mandatory and thermal margin is verified. |
Compared with XC6219B182MR-G and RT9013-18GB, the LD6806F/18P,115 uniquely combines 80 mV dropout, integrated 100 Ω pull-down, and 30 µV noise in a 1.0 mm × 1.45 mm XSON6 package-enabling smaller footprints, faster power-down, and cleaner analog supplies without added components.
Availability
LD6806F/18P,115 is available at Aetrix Electronics and suitable for mobile phone baseband power, wearable sensor hub supply, and industrial IoT edge node applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LD6806F/18P,115 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 with integrated power sequencing features-targeting mobile handsets, cordless telephones, and personal digital assistants.
FAQ
What is the maximum input voltage rating for LD6806F/18P,115?
The LD6806F/18P,115 supports an absolute maximum input voltage of +6.0 V for transient conditions up to 4 ms, with recommended continuous operation between 2.3 V and 5.5 V. Exceeding 6.0 V risks permanent damage, and operation below 2.3 V prevents regulation at 1.8 V output due to dropout constraints. Always verify input source stability and transient behavior in final system design.
Does LD6806F/18P,115 require an external output capacitor, and what value is recommended?
Yes, LD6806F/18P,115 requires an external output capacitor for stability. The datasheet specifies a minimum of 1.0 µF X7R ceramic capacitor with ESR between 5 mΩ and 500 mΩ. Using 1.0 µF meets both stability and startup/shutdown timing requirements; lower values may cause oscillation or extended settling time, while higher values increase shutdown time beyond the specified 300 µs.
How does the /18P suffix differentiate LD6806F/18P,115 from other variants in the LD6806 family?
The /18P suffix indicates two key attributes: (1) 1.8 V nominal output voltage, and (2) low-ohmic output stage during disable (integrated 100 Ω pull-down transistor). This distinguishes it from /18H variants, which enter high-ohmic (tri-state) mode when disabled. The P-variant enables automatic discharge of downstream capacitance without external components-critical for power sequencing in portable systems.
What is the thermal resistance (Rth(j-a)) of LD6806F/18P,115 in its SOT886 package?
The LD6806F/18P,115 has a typical junction-to-ambient thermal resistance (Rth(j-a)) of 220 K/W under standard test conditions (two-layer PCB, Tamb = 25 °C). Actual performance depends heavily on PCB copper area, via count, and layer stack-up; using internal ground/power planes with multiple thermal vias directly under the package can reduce effective Rth(j-a) significantly.
Can LD6806F/18P,115 be used in automotive applications?
The LD6806F/18P,115 is qualified for consumer applications per NX2-00001 and operates across −40 °C to +85 °C ambient temperature. While it meets key electrical specs for infotainment audio subsystems, it is not AEC-Q100 qualified. For automotive-critical functions, consult NXP's automotive-grade LDO portfolio or perform full qualification per ISO/TS 16949 requirements before deployment.
LD6806F/18P,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 6-XFDFN
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.13V @ 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:
- 6-XSON, SOT886 (1.45x1)
LD6806F/18P,115 FAQ
1.How can I place an order for LD6806F/18P,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806F/18P,115 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 LD6806F/18P,115 reliable?
The price and inventory of LD6806F/18P,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6806F/18P,115 is usually 5 days.
3.What payment methods are accepted for LD6806F/18P,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806F/18P,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806F/18P,115?
LD6806F/18P,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806F/18P,115 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 LD6806F/18P,115?
For technical support, including LD6806F/18P,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806F/18P,115 requirements.
6.How does Aetrix verify that LD6806F/18P,115 is sourced from the original manufacturer or authorized distributors?
All LD6806F/18P,115 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 LD6806F/18P,115 meets industry standards.
7.What is the process for return or replacement of LD6806F/18P,115?
All LD6806F/18P,115 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806F/18P,115, 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 LD6806F/18P,115 part is unused and in its original packaging.
Return procedure for LD6806F/18P,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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