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NXP Semiconductors LD6806CX4/23P,315
- Part No.:
- LD6806CX4/23P,315
- Manufacturer:
- NXP Semiconductors
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
LD6806CX4/23P,315.pdf
- Description:
- IC REG LINEAR 2.3V 200MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:18,000
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Product details
Overview
LD6806CX4/23P,315 from NXP Semiconductors is a 2.3 V fixed-output, low-noise, ultra-low-dropout linear regulator in WLCSP4 package, delivering up to 200 mA with 60 mV dropout at full load, 30 µV RMS output noise (10 Hz–100 kHz), and 200 µs startup time. It features active-HIGH enable, thermal shutdown, overcurrent protection, and a pull-down transistor for low-ohmic output during disable-ideal for space-constrained mobile power rails.
For engineers reviewing the LD6806CX4/23P,315 datasheet, LD6806CX4/23P,315 pinout, LD6806CX4/23P,315 application, or LD6806CX4/23P,315 equivalent, key selection criteria include its 2.3 V fixed output, WLCSP4 footprint (0.76 mm × 0.76 mm), 1.0 µF minimum output capacitance requirement, and P-type enable threshold (VIH ≥ 1.4 V, VIL ≤ 0.4 V).
Technical Context
The LD6806CX4/23P,315 implements a monolithic silicon LDO architecture with internal voltage reference, error amplifier, and P-channel pass transistor. Its low-ohmic pull-down switch (Rpd = 100 Ω) actively discharges the output during disable, preventing floating rail conditions in battery-powered systems.
It operates across −40 °C to +85 °C ambient, supports input voltages from 2.3 V to 5.5 V, and maintains regulation with ±0.5 % output voltage accuracy at +25 °C (±2 % over full temperature range for VOUT ≥ 1.8 V). PSRR is −55 dB at 1 kHz, and quiescent current is 70–100 µA under load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 2.3 V - eliminates external feedback resistors, reduces BOM count and PCB area. |
| Dropout voltage | 60 mV at 200 mA - enables stable 2.3 V output from as low as 2.36 V input, critical for Li-ion battery discharge tail-end operation. |
| Output noise | 30 µV RMS (10 Hz–100 kHz) - ensures clean supply for noise-sensitive analog circuits like ADCs and RF front-ends. |
| Enable logic | Active-HIGH (VIH ≥ 1.4 V) - compatible with standard GPIOs and microcontroller I/O without level-shifting. |
| Shutdown current | 0.1–1.0 µA - extends battery life in standby mode for portable devices. |
| Thermal protection | 160 °C shutdown with 20 K hysteresis - prevents permanent damage during sustained overload or poor heatsinking. |
| ESD rating | ±10 kV HBM - provides robust handling in manufacturing and end-user environments without additional protection circuitry. |
Pinout & Package
LD6806CX4/23P,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 four solder bumps arranged in a 2×2 grid. The package is Pb-free, RoHS-compliant, and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Supply ground | Primary return path for regulator current; must be connected to low-impedance ground plane for stability and noise control. |
| EN | Enable input | Active-HIGH digital control signal; drives internal pull-down when low to force shutdown and activate output discharge. |
| OUT | Regulated output | 2.3 V power rail; requires ≥1.0 µF X7R ceramic capacitor with ESR 5–500 mΩ for loop stability. |
| IN | Input supply | Accepts 2.3–5.5 V; benefits from local 1 µF decoupling capacitor near the pin to suppress high-frequency ripple. |
Key Features
| Feature | Design Value |
|---|---|
| Pull-down output stage | 100 Ω on-resistance actively discharges OUT during disable-prevents unintended biasing of downstream circuitry. |
| Ultra-fast startup | 200 µs to reach 95 % of 2.3 V - supports rapid system wake-up in low-power modes without timing bottlenecks. |
| Low-noise regulation | 30 µV RMS noise over 10 Hz–100 kHz - meets stringent requirements for audio codecs and precision sensors. |
| High PSRR | −55 dB at 1 kHz - effectively filters switching noise from upstream DC-DC converters feeding the LDO input. |
| Miniaturized footprint | 0.76 mm × 0.76 mm WLCSP4 - enables integration into ultra-thin mobile handsets and wearables where board area is at a premium. |
Applications
| Mobile Phone Baseband Power | Wireless Headset Audio Supply |
|---|---|
Use Scenario: Powers baseband processor core voltage rail in GSM/UMTS smartphones operating from single-cell Li-ion battery (2.8–4.2 V). IC Role / Device Role / Timing Role: Primary LDO delivering clean, regulated 2.3 V to processor I/O and memory interface blocks. Use Value: 60 mV dropout extends usable battery runtime by >15 minutes at end-of-discharge; pull-down prevents latch-up during sleep/wake transitions. | Use Scenario: Supplies low-noise 2.3 V to MEMS microphone preamplifier and Bluetooth audio codec in true wireless stereo earbuds. IC Role / Device Role / Timing Role: Low-noise post-regulator after buck converter, ensuring SNR > 95 dB in audio path. Use Value: 30 µV RMS noise avoids audible hiss; 200 µs startup synchronizes cleanly with Bluetooth link establishment sequence. |
| Portable Medical Sensor Node | IoT Edge Device RF Subsystem |
Use Scenario: Provides stable 2.3 V to optical heart-rate sensor ASIC and analog front-end in wearable health monitors. IC Role / Device Role / Timing Role: Precision analog supply rail with tight voltage tolerance (±2 % over −40 °C to +85 °C) and low thermal drift. Use Value: ±0.5 % initial accuracy and <0.01 %/mA load regulation minimize calibration drift; thermal watchdog ensures safe operation during skin-contact use. | Use Scenario: Powers 2.4 GHz BLE transceiver IC in battery-operated smart home sensor nodes. IC Role / Device Role / Timing Role: Enable-controlled LDO supplying RF section only during transmit/receive bursts to minimize average current draw. Use Value: 1.0 µA shutdown current extends 10-year battery life; active-HIGH EN simplifies control from ultra-low-power MCU GPIO. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B232MR-G | 2.3 V fixed output, SOT-25 package (2.9 mm × 2.8 mm), 150 mA max, 120 mV dropout at 100 mA | Larger footprint and lower current rating; no integrated pull-down switch | Select when board space allows larger package and output discharge is handled externally. |
| Richtek RT9013-23GB | 2.3 V fixed output, SOT-23-5 package, 300 mA max, 250 mV dropout at 300 mA, 45 µV RMS noise | Higher dropout and noise; lacks thermal hysteresis and ESD rating of 10 kV HBM | Select when higher output current is required and board layout accommodates larger SOT-23-5 footprint. |
Compared with XC6219B232MR-G and RT9013-23GB, LD6806CX4/23P,315 delivers superior miniaturization (0.58 mm² vs. 8.1 mm² and 2.9 mm²), lower dropout (60 mV vs. 120 mV and 250 mV), and integrated output discharge-making it optimal for next-gen compact, battery-sensitive designs.
Availability
LD6806CX4/23P,315 is available at Aetrix Electronics and suitable for mobile handset power management, wireless audio subsystems, portable medical sensors, and IoT edge device RF supplies requiring stable component supply, long-term lifecycle support, and consistent parametric performance.
Supply support for LD6806CX4/23P,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 belongs to NXP's ultra-low-noise, miniature LDO product line, designed specifically for space-constrained, battery-powered portable electronics demanding high efficiency, fast transient response, and robust reliability.
FAQ
What is the nominal output voltage of LD6806CX4/23P,315?
The LD6806CX4/23P,315 delivers a fixed nominal output voltage of 2.3 V. This value is factory-trimmed and guaranteed within ±0.5 % at +25 °C and ±2 % across the full operating temperature range (−40 °C to +85 °C), as specified in Table 10 of the LD6806_SER datasheet. The '23' in the part number explicitly denotes the 2.3 V output variant with low-ohmic (P-type) disable behavior.
Does LD6806CX4/23P,315 require an external output capacitor, and what are the requirements?
Yes, LD6806CX4/23P,315 requires an external output capacitor for stability. The datasheet mandates a minimum 1.0 µF X7R ceramic capacitor with ESR between 5 mΩ and 500 mΩ. Capacitor tolerance must be ±30 % or better over −40 °C to +125 °C. Using less than 1.0 µF risks oscillation or excessive startup/shutdown time; exceeding 500 mΩ ESR may degrade transient response and PSRR performance.
How does the enable function work on LD6806CX4/23P,315?
LD6806CX4/23P,315 features an active-HIGH enable input (EN pin). The device powers up when EN voltage exceeds 1.4 V (VIH min) and shuts down when EN falls below 0.4 V (VIL max). During shutdown, the internal pull-down transistor activates, holding OUT at ≤100 mV via a 100 Ω path to GND. This behavior is confirmed in Figures 4 and 5 (block diagrams) and Table 9 (electrical characteristics) of the LD6806_SER datasheet.
What is the thermal shutdown behavior of LD6806CX4/23P,315?
LD6806CX4/23P,315 incorporates thermal shutdown at 160 °C junction temperature (Tsd), with 20 K hysteresis (Tsd(hys)). When Tj reaches 160 °C, the regulator disables and pulls OUT low via the internal pull-down. It remains off until Tj drops to 140 °C, at which point normal regulation resumes automatically. This behavior is documented in Table 10 (Electrical Characteristics) and Figure 4 (block diagram) of the LD6806_SER datasheet.
Is LD6806CX4/23P,315 compatible with lead-free reflow soldering processes?
Yes, LD6806CX4/23P,315 is fully compatible with lead-free reflow soldering. As a WLCSP4 package, it follows J-STD-020C Class 3 moisture sensitivity level (MSL3) and requires peak reflow temperatures up to 260 °C. The package is Pb-free, RoHS-compliant, and halogen-free. Soldering footprint dimensions and reflow profile guidance are provided in Figures 39 and 43 of the LD6806_SER datasheet.
LD6806CX4/23P,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):
- 2.3V
- 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-WLCSP (0.76x0.76)
LD6806CX4/23P,315 FAQ
1.How can I place an order for LD6806CX4/23P,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806CX4/23P,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 LD6806CX4/23P,315 reliable?
The price and inventory of LD6806CX4/23P,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6806CX4/23P,315 is usually 5 days.
3.What payment methods are accepted for LD6806CX4/23P,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806CX4/23P,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806CX4/23P,315?
LD6806CX4/23P,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806CX4/23P,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 LD6806CX4/23P,315?
For technical support, including LD6806CX4/23P,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806CX4/23P,315 requirements.
6.How does Aetrix verify that LD6806CX4/23P,315 is sourced from the original manufacturer or authorized distributors?
All LD6806CX4/23P,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 LD6806CX4/23P,315 meets industry standards.
7.What is the process for return or replacement of LD6806CX4/23P,315?
All LD6806CX4/23P,315 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806CX4/23P,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 LD6806CX4/23P,315 part is unused and in its original packaging.
Return procedure for LD6806CX4/23P,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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