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NXP Semiconductors LD6806CX4/20H,315
- Part No.:
- LD6806CX4/20H,315
- Manufacturer:
- NXP Semiconductors
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
LD6806CX4/20H,315.pdf
- Description:
- IC REG LINEAR 2V 200MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,994
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Product details
Overview
LD6806CX4/20H,315 from NXP Semiconductors is a wafer-level chip-scale package (WLCSP4) ultra-low-dropout linear regulator delivering 2.0 V at 200 mA with 60 mV dropout, 30 µVRMS output noise (10 Hz–100 kHz), and 200 µs startup time. It features high-ohmic (3-state) output during disable, thermal shutdown at 160 °C, and operates from 2.3 V to 5.5 V input - optimized for space-constrained mobile power rails in smartphone baseband processors and RF front-end modules.
For engineers reviewing the LD6806CX4/20H,315 datasheet, LD6806CX4/20H,315 pinout, LD6806CX4/20H,315 application, or LD6806CX4/20H,315 equivalent, key selection criteria include its WLCSP4 footprint (0.76 mm × 0.76 mm), enable-threshold compatibility (VIH ≥ 1.4 V), PSRR of −55 dB at 1 kHz, and guaranteed ±2% output voltage accuracy over −40 °C to +85 °C ambient.
Technical Context
The LD6806CX4/20H,315 implements a PMOS pass transistor architecture enabling ultra-low dropout and fast transient response. Its internal bandgap reference, error amplifier, and thermal protection circuitry are monolithically integrated on silicon, with dedicated enable logic that forces the output into high-impedance state when EN < 0.4 V.
Unlike P-variant versions, the /20H suffix confirms high-ohmic disable behavior - no pull-down transistor - making it suitable for systems requiring isolation between regulated domains during standby. The device requires a minimum 1.0 µF X7R ceramic output capacitor with ESR between 5 mΩ and 500 mΩ for stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.0 V nominal, ±2% tolerance over −40 °C to +85 °C ambient - ensures stable core supply for low-voltage ASICs without external feedback resistors. |
| Dropout Voltage | 60 mV typical at 200 mA load - enables operation with VIN as low as 2.06 V, maximizing battery runtime in single-cell Li-ion applications. |
| PSRR | −55 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters, critical for analog sensor and RF bias rails. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz) - low enough for powering precision ADC references and PLL VCOs without additional filtering. |
| Quiescent Current | 70 µA typical at 200 mA load - balances efficiency and responsiveness for always-on subsystems like touch controllers or RTCs. |
| 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 | 160 °C junction temperature with 20 K hysteresis - protects against sustained overload while allowing recovery after cooling. |
Pinout & Package
LD6806CX4/20H,315 uses a 4-bump WLCSP (wafer-level chip-scale package) with 0.4 mm pitch, dimensions 0.76 mm × 0.76 mm × 0.47 mm, and Pb-free/RoHS-compliant construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (A1) | Supply ground reference | Primary return path for load current and internal bias; must connect to solid ground plane via multiple vias for thermal and noise performance. |
| EN (A2) | Active-HIGH enable input | Drives internal regulator enable logic; pulled low by host MCU GPIO to enter ultra-low-IQ (0.1 µA) shutdown mode. |
| OUT (B1) | Regulated output voltage | Delivers 2.0 V to load; high-ohmic (3-state) when disabled - isolates downstream circuitry from backfeed or leakage paths. |
| IN (B2) | Input supply voltage | Accepts 2.3 V–5.5 V; requires local 1 µF ceramic decoupling within 2 mm of the bump to minimize input impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 60 mV at 200 mA enables use with weak or aging batteries - extends usable voltage range beyond conventional LDOs. |
| Low-noise regulation | 30 µVRMS noise supports noise-sensitive analog circuits (e.g., audio codecs, RF synthesizers) without added LC filtering. |
| Fast startup | 200 µs rise time allows rapid power sequencing in multi-rail systems - meets tight timing budgets in mobile SoC boot sequences. |
| High-ohmic disable | True 3-state output eliminates reverse current flow and prevents unintended powering of downstream logic during sleep modes. |
| ESD robustness | 10 kV HBM rating protects against handling damage in automated SMT lines and field-replaceable module assembly. |
Applications
| Mobile Baseband Power | RF Front-End Bias |
|---|---|
Use Scenario: Supplying 2.0 V to LTE/WCDMA baseband processor I/O banks during active data transmission. IC Role / Device Role / Timing Role: Primary low-noise post-regulator stepping down from 3.3 V system rail to meet strict voltage tolerance and noise floor requirements. Use Value: Maintains ±2% output accuracy across temperature and load transients, preventing I/O timing violations and data corruption. |
Use Scenario: Providing clean 2.0 V bias to GaAs pHEMT power amplifiers in smartphone antenna modules. IC Role / Device Role / Timing Role: Low-noise, fast-response LDO isolating PA bias from noisy switcher outputs and enabling rapid PA enable/disable control. Use Value: 30 µVRMS noise and −55 dB PSRR prevent AM-to-PM distortion and adjacent-channel leakage in transmit chains. |
| Wearable Sensor Hub | Always-On Touch Controller |
Use Scenario: Powering MEMS accelerometer/gyroscope signal chain in fitness trackers with 24/7 motion detection. IC Role / Device Role / Timing Role: Ultra-low-quiescent LDO supplying 2.0 V to analog front-end and ADC, enabled only during wake-up windows. Use Value: 70 µA operating IQ and 0.1 µA shutdown current extend coin-cell battery life to >12 months in intermittent-sensing mode. |
Use Scenario: Delivering 2.0 V to capacitive touch IC during deep-sleep states where host MCU is powered off. IC Role / Device Role / Timing Role: High-ohmic disable LDO maintaining isolation between touch controller and main SoC domain to prevent leakage-induced wakeups. Use Value: True 3-state output eliminates cross-talk and false triggers caused by floating VDD lines during system suspend. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B202MR-G | Same 2.0 V output, 200 mA rating, and WLCSP-4 package; but uses NMOS pass device → higher dropout (150 mV @ 200 mA). | Lacks thermal shutdown and has lower PSRR (−45 dB @ 1 kHz); not suitable for thermally constrained RF modules. | Select only if board layout cannot accommodate thermal relief or if cost sensitivity outweighs efficiency and noise requirements. |
| Ricoh RP114K201B-TR-F | 2.0 V, 300 mA, SOT-23-5 package; includes soft-start and adjustable delay, but larger footprint (2.9 mm × 2.8 mm) and no 3-state disable. | Provides low-ohmic output during disable (pull-down), incompatible with isolation-critical touch/sensor applications. | Prefer when higher current headroom or programmable timing is needed, and PCB area permits larger SMT package. |
Compared with XC6219B202MR-G and RP114K201B-TR-F, LD6806CX4/20H,315 delivers superior dropout performance, true 3-state disable, and higher PSRR in the smallest possible footprint - making it optimal for miniaturized, noise-sensitive, and thermally demanding mobile subsystems.
Availability
LD6806CX4/20H,315 is available at Aetrix Electronics and suitable for mobile handset power management, wearable sensor hubs, and RF front-end biasing requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LD6806CX4/20H,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 specializing in secure connectivity solutions for automotive, industrial, and mobile applications, with leadership in power management, RF, and interface technologies.
The LD6806 series was designed specifically for ultra-miniaturized, low-noise, and high-efficiency power delivery in portable consumer electronics - targeting stringent size, thermal, and EMI constraints in smartphones and wearables.
FAQ
What is the maximum input voltage rating for LD6806CX4/20H,315?
The absolute maximum input voltage on the IN pin of LD6806CX4/20H,315 is +6.0 V for 4 ms transients, with recommended continuous operation between 2.3 V and 5.5 V. Exceeding 5.5 V continuously risks exceeding thermal limits or degrading long-term reliability, especially under full 200 mA load.
Does LD6806CX4/20H,315 require an external output capacitor, and what type is recommended?
Yes, LD6806CX4/20H,315 requires a minimum 1.0 µF X7R ceramic capacitor at the OUT pin, with ESR between 5 mΩ and 500 mΩ. The capacitor must maintain ≥0.7 µF capacitance across −40 °C to +125 °C; X7R dielectric ensures stable performance over temperature and bias voltage.
How does the high-ohmic disable feature of LD6806CX4/20H,315 function during system sleep?
When the EN pin is driven below 0.4 V, LD6806CX4/20H,315 disables its pass transistor and places the OUT pin in high-impedance state - effectively disconnecting the 2.0 V rail from the load. This prevents reverse current, eliminates standby leakage, and avoids unintended powering of downstream logic during MCU sleep.
What is the thermal resistance (Rth(j-a)) of LD6806CX4/20H,315, and how does PCB layout affect it?
LD6806CX4/20H,315 has a typical Rth(j-a) of 130 K/W on a two-layer PCB. Performance improves significantly with direct thermal connection of all bumps to large copper areas - especially GND (A1) - and use of multiple vias to inner ground/power planes. Avoid solder mask over thermal pads.
Can LD6806CX4/20H,315 be used with a 1.8 V enable signal from a microcontroller?
Yes - LD6806CX4/20H,315 specifies VIH ≥ 1.4 V and VIL ≤ 0.4 V, making it fully compatible with standard 1.8 V GPIO outputs. A 1.8 V logic HIGH exceeds the minimum threshold by 0.4 V margin, ensuring robust enable functionality across voltage and temperature variations.
LD6806CX4/20H,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 4-XFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2V
- 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)
LD6806CX4/20H,315 FAQ
1.How can I place an order for LD6806CX4/20H,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806CX4/20H,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 LD6806CX4/20H,315 reliable?
The price and inventory of LD6806CX4/20H,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6806CX4/20H,315 is usually 5 days.
3.What payment methods are accepted for LD6806CX4/20H,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806CX4/20H,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806CX4/20H,315?
LD6806CX4/20H,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806CX4/20H,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 LD6806CX4/20H,315?
For technical support, including LD6806CX4/20H,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806CX4/20H,315 requirements.
6.How does Aetrix verify that LD6806CX4/20H,315 is sourced from the original manufacturer or authorized distributors?
All LD6806CX4/20H,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 LD6806CX4/20H,315 meets industry standards.
7.What is the process for return or replacement of LD6806CX4/20H,315?
All LD6806CX4/20H,315 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806CX4/20H,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 LD6806CX4/20H,315 part is unused and in its original packaging.
Return procedure for LD6806CX4/20H,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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