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NXP Semiconductors LD6806CX4/16H,315
- Part No.:
- LD6806CX4/16H,315
- Manufacturer:
- NXP Semiconductors
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
LD6806CX4/16H,315.pdf
- Description:
- IC REG LINEAR 1.6V 200MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:36,250
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Product details
Overview
LD6806CX4/16H,315 from NXP Semiconductors is a 1.6 V, 200 mA ultra-low-dropout linear regulator in WLCSP4 package (0.76 mm × 0.76 mm × 0.47 mm), featuring 60 mV dropout at 200 mA, 30 µVRMS output noise (10 Hz–100 kHz), and high-ohmic (3-state) output during disable. It operates from 2.3 V to 5.5 V input and targets power-sensitive mobile handset and media player subsystems requiring stable low-voltage bias.
For engineers reviewing the LD6806CX4/16H,315 datasheet, LD6806CX4/16H,315 pinout, LD6806CX4/16H,315 application, or LD6806CX4/16H,315 equivalent, key selection criteria include its 1.6 V fixed output, WLCSP4 footprint constraints, enable-active-HIGH logic, thermal shutdown at 160 °C, and PSRR of −55 dB at 1 kHz - all critical for compact battery-powered analog/digital interface rails.
Technical Context
The LD6806CX4/16H,315 implements a PMOS pass transistor architecture enabling ultra-low dropout and fast 200 µs startup. Its internal voltage reference, error amplifier, and thermal/current protection circuitry are monolithically integrated in silicon, with no external compensation required due to inherent stability with ≥1.0 µF ceramic output capacitance.
It uses an active-HIGH enable input (VIH ≥ 1.4 V, VIL ≤ 0.4 V) independent of input voltage, and enters high-impedance state (not pull-down) when disabled - distinguishing it from P-suffix variants. The device includes integrated ESD protection (10 kV HBM) and operates across −40 °C to +85 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.6 V ±3% over −40 °C to +85 °C; enables direct replacement of 1.6 V logic or analog supply rails without external feedback. |
| Dropout Voltage | 60 mV typical at 200 mA load; allows operation with VIN as low as 1.66 V, maximizing battery runtime in single-cell Li-ion or Li-poly systems. |
| Noise (RMS) | 30 µV RMS (10 Hz–100 kHz); supports low-noise analog circuits (e.g., ADC references, RF LNA bias) without additional filtering. |
| PSRR | −55 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Quiescent Current | 70–100 µA typical under load; ensures minimal standby power draw in always-on subsystems like touch controllers or sensors. |
| Enable Threshold | VIH = 1.4 V min, VIL = 0.4 V max; compatible with 1.8 V and 3.3 V GPIOs without level-shifting. |
| Thermal Shutdown | Triggers at 160 °C junction temperature with 20 K hysteresis; protects against sustained overload or poor PCB thermal design. |
Pinout & Package
LD6806CX4/16H,315 is housed in a wafer-level chip-scale package (WLCSP4) measuring 0.76 mm × 0.76 mm × 0.47 mm with 0.4 mm pitch and four solder bumps arranged in a 2×2 array. The package is lead-free, RoHS-compliant, halogen- and antimony-free.
| 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 output state; driven HIGH ≥1.4 V to enable, LOW ≤0.4 V to place OUT in high-ohmic (3-state) mode. |
| OUT | Regulated output voltage | Delivers 1.6 V to load; requires ≥1.0 µF X7R ceramic capacitor with ESR 5–500 mΩ for stability. |
| IN | Supply voltage input | Accepts 2.3–5.5 V input; benefits from local 1 µF ceramic decoupling capacitor near the pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 60 mV at full 200 mA load enables use in tight VIN–VOUT margin applications, e.g., 1.8 V rail powering 1.6 V core logic. |
| Low-noise regulation | 30 µVRMS noise supports precision analog functions without post-regulation filtering, reducing BOM count and board area. |
| Fast start-up | 200 µs time to reach 95% of 1.6 V output allows rapid subsystem wake-up in power-gated architectures. |
| High-ohmic disable | Outputs enter true 3-state (high-Z) when EN is LOW, preventing back-driving or contention on shared voltage rails. |
| Robust protection | Integrated thermal shutdown (160 °C), overcurrent limiting, and 10 kV HBM ESD rating simplify system-level reliability design. |
Applications
| Mobile Phone Baseband Core | Media Player Audio Codec Bias |
|---|---|
Use Scenario: Powering ARM-based application processor cores requiring tightly regulated 1.6 V supply with fast transient response during burst-mode operation. IC Role / Device Role / Timing Role: Primary low-noise, low-dropout voltage regulator delivering stable 1.6 V to digital logic blocks with enable-controlled power sequencing. Use Value: Enables extended battery life via 60 mV dropout and minimizes digital noise coupling into sensitive RF sections through 55 dB PSRR at 1 kHz. | Use Scenario: Supplying bias voltage to stereo audio DAC/ADC ICs in portable media players where supply ripple directly impacts SNR. IC Role / Device Role / Timing Role: Low-noise LDO providing clean 1.6 V reference for audio signal chain components, synchronized to system enable signals. Use Value: 30 µVRMS output noise preserves >95 dB SNR in 24-bit audio paths without additional LC filtering or larger capacitors. |
| Smartwatch Sensor Hub | Bluetooth LE Peripheral MCU Rail |
Use Scenario: Regulating power for multi-axis accelerometer, gyroscope, and environmental sensor fusion in space-constrained wearable devices. IC Role / Device Role / Timing Role: Compact-area LDO supplying 1.6 V to always-on sensor interface logic, entering high-Z state during host sleep to prevent leakage. Use Value: WLCSP4 footprint (0.76 mm²) and 0.1 µA shutdown current minimize PCB real estate and quiescent drain in battery-limited designs. | Use Scenario: Providing 1.6 V supply to Bluetooth Low Energy SoCs operating from coin-cell or small Li-ion batteries with wide input voltage swing. IC Role / Device Role / Timing Role: Input-flexible LDO supporting 2.3–5.5 V input range while maintaining 1.6 V output during battery discharge down to 2.3 V. Use Value: 60 mV dropout extends usable battery capacity by ~15 minutes compared to 150 mV-dropout alternatives at 200 mA load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B162MR-G | 1.6 V fixed output, SOT-25 package (2.9 mm × 2.8 mm), 150 mV dropout at 100 mA, 45 µVRMS noise | Larger footprint; higher dropout limits use in low-VIN scenarios; higher noise may require extra filtering for audio | Choose when board space permits larger package and cost sensitivity outweighs noise/dropout requirements. |
| Ricoh RP114K161D-TR-F | 1.6 V fixed output, DFN1006-4 package (1.0 mm × 0.6 mm), 120 mV dropout at 200 mA, 25 µVRMS noise | 0.6 mm width allows narrower routing; higher dropout reduces efficiency below 1.72 V input; slightly lower noise | Prefer when ultra-compact width is critical and input stays above 1.75 V; verify thermal performance at 200 mA in thin PCBs. |
Compared with XC6219B162MR-G and RP114K161D-TR-F, LD6806CX4/16H,315 delivers the lowest dropout (60 mV) and smallest footprint (0.76 mm²) among the three, making it optimal for space- and efficiency-constrained mobile applications - though its WLCSP requires refined reflow process control versus SOT-25 or DFN.
Availability
LD6806CX4/16H,315 is available at Aetrix Electronics and suitable for mobile phone handsets, portable media players, and smart wearable devices requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for LD6806CX4/16H,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, miniaturized LDO portfolio, designed specifically for power management in space-constrained portable electronics where dropout, noise, and footprint are critical.
FAQ
What is the nominal output voltage of LD6806CX4/16H,315?
The LD6806CX4/16H,315 provides a fixed nominal output voltage of 1.6 V, with guaranteed tolerance of ±3% over −40 °C to +85 °C ambient temperature and load currents from 1 mA to 200 mA. This value is laser-trimmed during manufacturing and does not require external resistors.
Does LD6806CX4/16H,315 require an external output capacitor?
Yes, LD6806CX4/16H,315 requires a minimum 1.0 µF X7R ceramic capacitor at the OUT pin for stability, with ESR between 5 mΩ and 500 mΩ. The datasheet specifies 0.7 µF as absolute minimum, but 1.0 µF is recommended to ensure correct operation across temperature and lifetime.
What happens to the output of LD6806CX4/16H,315 when the EN pin is pulled LOW?
When the EN pin of LD6806CX4/16H,315 is driven below 0.4 V, the device disables and places the OUT pin in a high-ohmic (3-state) condition - not a low-impedance pull-down. This prevents back-current flow and avoids contention on shared voltage rails, unlike P-suffix variants.
Can LD6806CX4/16H,315 operate from a 2.3 V input supply?
Yes, LD6806CX4/16H,315 supports input voltages from 2.3 V to 5.5 V. At 2.3 V input and 1.6 V output, the 60 mV typical dropout ensures regulation remains active down to VIN = 1.66 V - meaning 2.3 V is well within specification and provides 640 mV headroom for line and load transients.
Is LD6806CX4/16H,315 compatible with lead-free reflow processes?
Yes, LD6806CX4/16H,315 is fully lead-free and RoHS-compliant. Its WLCSP4 package is qualified for standard lead-free reflow profiles per J-STD-020C, with peak temperature up to 260 °C. Moisture sensitivity level (MSL) must be observed per packaging label to prevent popcorning.
LD6806CX4/16H,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):
- 1.6V
- 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)
LD6806CX4/16H,315 FAQ
1.How can I place an order for LD6806CX4/16H,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806CX4/16H,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 LD6806CX4/16H,315 reliable?
The price and inventory of LD6806CX4/16H,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6806CX4/16H,315 is usually 5 days.
3.What payment methods are accepted for LD6806CX4/16H,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806CX4/16H,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806CX4/16H,315?
LD6806CX4/16H,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806CX4/16H,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 LD6806CX4/16H,315?
For technical support, including LD6806CX4/16H,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806CX4/16H,315 requirements.
6.How does Aetrix verify that LD6806CX4/16H,315 is sourced from the original manufacturer or authorized distributors?
All LD6806CX4/16H,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 LD6806CX4/16H,315 meets industry standards.
7.What is the process for return or replacement of LD6806CX4/16H,315?
All LD6806CX4/16H,315 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806CX4/16H,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 LD6806CX4/16H,315 part is unused and in its original packaging.
Return procedure for LD6806CX4/16H,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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