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NXP Semiconductors LD6806F/29P,115
- Part No.:
- LD6806F/29P,115
- Manufacturer:
- NXP Semiconductors
- Package:
- 6-XFDFN
- Datasheet:
-
LD6806F/29P,115.pdf
- Description:
- IC REG LINEAR 2.9V 200MA 6XSON
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
LD6806F/29P,115 from NXP Semiconductors is a 2.9 V, 200 mA ultra-low-dropout linear regulator in SOT886 (XSON6) package with 80 mV dropout at full load, 30 µVRMS output noise (10 Hz–100 kHz), and active-HIGH enable pin-designed for power-sensitive mobile interfaces requiring stable low-noise bias in space-constrained PCBs.
For engineers reviewing the LD6806F/29P,115 datasheet, LD6806F/29P,115 pinout, LD6806F/29P,115 application, or LD6806F/29P,115 equivalent, key selection factors 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/29P,115 uses a monolithic silicon LDO architecture with internal reference generator, current limiter, and thermal protection circuitry. Its low-ohmic output stage (Rpd = 100 Ω) actively pulls OUT to GND when EN is low-enabling clean power sequencing in multi-rail systems.
It operates across 2.3 V–5.5 V input range and delivers regulated 2.9 V ±0.5 % (typ.) with 55 dB PSRR at 1 kHz and 200 µs startup time. The device meets IEC 61340-3-1 ESD rating (±10 kV HBM) and supports ambient temperatures from −40 °C to +85 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | 2.9 V nominal; ±0.5 % tolerance at +25 °C ensures stable bias for 2.8–3.0 V logic rails |
| Dropout voltage | 80 mV typical at 200 mA; enables operation with VIN as low as 2.98 V while maintaining regulation |
| Noise (RMS) | 30 µV over 10 Hz–100 kHz; suitable for analog sensor supplies and RF front-end biasing |
| PSRR | −55 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters |
| Enable threshold | VIH = 1.4 V min; compatible with 1.8 V and 3.3 V GPIO without level-shifting |
| Quiescent current | 70–100 µA active; 0.1–1.0 µA in shutdown-critical for battery-backed subsystems |
| Thermal shutdown | 160 °C with 20 K hysteresis; prevents latch-up during transient overload or poor heatsinking |
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 (Pin 1) | Regulated output voltage | Delivers 2.9 V to load; features integrated 100 Ω pull-down transistor when disabled |
| n.c. (Pin 2) | Not connected | No internal connection; must be left floating or tied to GND per layout best practice |
| GND (Pin 3) | Supply ground reference | Primary return path for load and quiescent current; requires low-impedance PCB plane |
| EN (Pin 4) | Enable control input | Active-HIGH logic; drives internal pass transistor when ≥1.4 V applied |
| n.c. (Pin 5) | Not connected | No internal connection; must be left floating or tied to GND per layout best practice |
| IN (Pin 6) | Input supply voltage | Accepts 2.3–5.5 V; requires local 1 µF ceramic decoupling capacitor near pin |
Key Features
| Feature | Design Value |
|---|---|
| Low-ohmic output stage | 100 Ω pull-down resistance on OUT during disable-ensures fast, controlled discharge of downstream capacitance |
| Ultra-low noise | 30 µVRMS output noise enables use in precision analog and RF signal chains without additional filtering |
| Fast startup | 200 µs to reach 95 % of 2.9 V-supports dynamic power gating in portable devices |
| Robust ESD protection | ±10 kV HBM rating eliminates need for external TVS diodes in handheld product designs |
| Thermal watchdog | 160 °C shutdown with 20 K hysteresis prevents thermal runaway under sustained overload conditions |
Applications
| Mobile Phone Baseband Power | Wearable Sensor Bias Rail |
|---|---|
Use Scenario: Supplying 2.9 V to baseband processor I/O banks in LTE smartphones where input rail varies between 3.0–4.2 V from Li-ion battery. IC Role / Device Role / Timing Role: Low-noise, fast-response LDO providing clean, sequenced power to digital interface circuits. Use Value: 80 mV dropout preserves operating margin across battery discharge curve; 200 µs startup aligns with processor wake-up timing. | Use Scenario: Powering MEMS accelerometer and gyroscope in compact fitness trackers with tight board area constraints. IC Role / Device Role / Timing Role: Miniaturized, low-quiescent-current regulator delivering stable 2.9 V from shared system rail. Use Value: 1.0 mm × 1.45 mm SOT886 footprint saves >50 % board area vs. SOT23; 0.1 µA shutdown current extends battery life. |
| Bluetooth Audio Codec Supply | Industrial IoT Edge Node Core Logic |
Use Scenario: Providing low-noise 2.9 V bias to Bluetooth audio codec ICs in wireless earbuds, rejecting noise from adjacent Class-D amplifiers. IC Role / Device Role / Timing Role: High-PSRR LDO isolating sensitive analog audio paths from noisy digital domains. Use Value: 55 dB PSRR at 1 kHz attenuates switching ripple from shared 3.3 V DC-DC converter; 30 µVRMS noise avoids audible artifacts. | Use Scenario: Regulating 2.9 V for ARM Cortex-M microcontroller core in battery-powered industrial sensor nodes deployed in −40 °C to +85 °C environments. IC Role / Device Role / Timing Role: Temperature-stable, fault-protected LDO ensuring reliable MCU operation across extended ambient range. Use Value: ±0.5 % output accuracy maintained over −40 °C to +85 °C; thermal shutdown prevents field failures under enclosure overheating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B292MR-G | 200 mA, 2.9 V fixed, SOT-25; 120 mV dropout at 200 mA; no integrated pull-down | Lacks active pull-down; requires external resistor network for controlled discharge | Select when board area allows SOT-25 and pull-down functionality is not required |
| Richtek RT9013-29GB | 300 mA, 2.9 V fixed, SOT-23-5; 250 mV dropout at 300 mA; 45 µVRMS noise | Higher dropout and noise; larger SOT-23-5 footprint than SOT886 | Select when higher output current headroom is needed and 0.5 mm height constraint is relaxed |
Compared with XC6219B292MR-G and RT9013-29GB, the LD6806F/29P,115 offers superior dropout performance (80 mV vs. ≥120 mV), lower noise (30 µVRMS), and integrated pull-down-making it optimal for space-constrained, low-power, and fast-sequencing applications where output discharge control is critical.
Availability
LD6806F/29P,115 is available at Aetrix Electronics and suitable for mobile phone handsets, wearable electronics, and Bluetooth audio devices requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for LD6806F/29P,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 belongs to NXP's ultra-low-noise, miniaturized LDO portfolio-designed specifically for power management in portable and battery-operated devices where board space, thermal performance, and signal integrity are critical.
FAQ
What is the maximum input voltage rating for LD6806F/29P,115?
The LD6806F/29P,115 has an absolute maximum input voltage of +6.0 V for transient events up to 4 ms, with recommended continuous operation between 2.3 V and 5.5 V. Exceeding 6.0 V-even briefly-may cause permanent damage. This rating is verified per IEC 60134 limiting values and applies regardless of output load or ambient temperature.
Does LD6806F/29P,115 require an external output capacitor, and what type is recommended?
Yes, LD6806F/29P,115 requires a minimum 1.0 µF X7R ceramic capacitor at the OUT pin for stability and correct operation. The capacitor must have ±30 % tolerance over −40 °C to +125 °C and ESR between 5 mΩ and 500 mΩ. Using smaller or non-X7R types risks oscillation or degraded transient response.
How does the pull-down function behave on LD6806F/29P,115 when the EN pin is low?
When EN is pulled below 0.4 V, LD6806F/29P,115 disables its pass transistor and activates an internal 100 Ω pull-down switch between OUT and GND. This discharges downstream capacitance rapidly-reducing OUT voltage to 10 % of nominal within 300 µs-as confirmed in Figure 30 of the datasheet.
What is the thermal resistance (Rth(j-a)) of LD6806F/29P,115 in standard PCB conditions?
The LD6806F/29P,115 has a typical junction-to-ambient thermal resistance of 220 K/W under standard two-layer PCB conditions (Tamb = 25 °C). This value assumes solid copper connections to all pins and no solder-stop varnish under the package. Layout improvements-such as thermal vias to inner ground planes-can reduce effective Rth(j-a).
Is LD6806F/29P,115 compatible with lead-free reflow soldering processes?
Yes, LD6806F/29P,115 is Pb-free and RoHS compliant, qualified for lead-free reflow per J-STD-020C. Its SOT886 package (thickness < 1.6 mm, volume < 350 mm³) requires a peak reflow temperature of 260 °C. Moisture sensitivity level (MSL) must be observed per packaging label to prevent popcorning.
LD6806F/29P,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):
- 2.9V
- 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/29P,115 FAQ
1.How can I place an order for LD6806F/29P,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806F/29P,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/29P,115 reliable?
The price and inventory of LD6806F/29P,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/29P,115 is usually 5 days.
3.What payment methods are accepted for LD6806F/29P,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806F/29P,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806F/29P,115?
LD6806F/29P,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806F/29P,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/29P,115?
For technical support, including LD6806F/29P,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806F/29P,115 requirements.
6.How does Aetrix verify that LD6806F/29P,115 is sourced from the original manufacturer or authorized distributors?
All LD6806F/29P,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/29P,115 meets industry standards.
7.What is the process for return or replacement of LD6806F/29P,115?
All LD6806F/29P,115 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806F/29P,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/29P,115 part is unused and in its original packaging.
Return procedure for LD6806F/29P,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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