My Inquiry
My Account
NXP Semiconductors LD6806CX4/36P,315
- Part No.:
- LD6806CX4/36P,315
- Manufacturer:
- NXP Semiconductors
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
LD6806CX4/36P,315.pdf
- Description:
- IC REG LINEAR 3.6V 200MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:9,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LD6806CX4/36P,315 from NXP Semiconductors is a 3.6 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 active-HIGH enable with pull-down transistor for low-ohmic output during disable-designed for power-sensitive mobile handset and media player subsystems.
For engineers reviewing the LD6806CX4/36P,315 datasheet, LD6806CX4/36P,315 pinout, LD6806CX4/36P,315 application, or LD6806CX4/36P,315 equivalent, key selection criteria include guaranteed 3.6 V output accuracy (±2% over temperature), thermal shutdown at 160 °C with 20 K hysteresis, PSRR of −55 dB at 1 kHz, and compatibility with 1 µF X7R ceramic output capacitors meeting −40 °C to +125 °C operation.
Technical Context
The LD6806CX4/36P,315 implements a PMOS pass transistor architecture enabling ultra-low dropout voltage and stable regulation across 2.3 V–5.5 V input range. Its internal bandgap reference, error amplifier, and current-limit protection operate independently of load current up to 200 mA, with thermal foldback engaging above 160 °C junction temperature.
Unlike high-ohmic variants (e.g., LD6806CX4/36H), this P-suffix device integrates a dedicated NMOS pull-down switch tied to the EN pin, ensuring rapid discharge of output capacitance (<300 µs shutdown time) and preventing floating rail conditions in battery-backed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.6 V nominal, ±2% tolerance over −40 °C to +85 °C ambient - ensures stable core voltage for 3.3 V–3.6 V logic rails in portable devices. |
| Dropout Voltage | 60 mV typical at 200 mA - enables >98% efficiency at 3.6 V output when VIN ≥ 3.66 V, critical for single-cell Li-ion battery operation. |
| Noise (RMS) | 30 µV RMS (10 Hz–100 kHz) - supports low-noise analog circuitry (e.g., ADC references, RF bias) without external filtering. |
| PSRR | −55 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| 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. |
| Shutdown Current | 0.1–1.0 µA typical - extends battery life in deep-sleep modes of handheld devices. |
| Thermal Protection | 160 °C shutdown with 20 K hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
LD6806CX4/36P,315 uses a wafer-level chip-scale package (WLCSP4) with 0.4 mm pitch, 0.76 mm × 0.76 mm footprint, and 0.47 mm height. Bump configuration: A1 = GND, A2 = EN, B1 = OUT, B2 = IN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (A1) | Supply ground reference | Low-impedance return path for regulator current and internal circuitry; must connect to solid ground plane for thermal and noise performance. |
| EN (A2) | Active-HIGH enable input | Drives internal pass transistor and pull-down switch; logic HIGH ≥1.4 V enables regulation, LOW ≤0.4 V disables with fast output discharge. |
| OUT (B1) | Regulated output voltage | Delivers 3.6 V to load; requires ≥1.0 µF X7R ceramic capacitor with ESR 5–500 mΩ for stability and transient response. |
| IN (B2) | Input supply voltage | Accepts 2.3–5.5 V; must be decoupled with ≥1.0 µF capacitor near package to minimize input ripple and improve PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 60 mV at full 200 mA load enables use with input voltages as low as 3.66 V - essential for single-cell Li-ion (3.0–4.2 V) applications. |
| Integrated pull-down switch | 100 Ω typical Rpd ensures rapid, controlled discharge of output capacitance upon disable - prevents unintended wake-up or latch-up in downstream circuits. |
| Low-noise regulation | 30 µV RMS noise over 10 Hz–100 kHz eliminates need for post-LDO LC filters in sensitive analog signal chains. |
| ESD robustness | 10 kV HBM rating protects against handling damage during SMT assembly and field operation in consumer environments. |
| Miniature WLCSP4 package | 0.76 mm × 0.76 mm footprint saves >70% board area vs. SOT753 - enables ultra-thin mobile phone and wearable designs. |
Applications
| Mobile Phone Baseband Power | Wireless Headset Audio Bias |
|---|---|
Use Scenario: Supplying clean 3.6 V to baseband processor I/O banks and memory interfaces in slim smartphone designs. IC Role / Device Role / Timing Role: Primary low-noise, low-dropout voltage regulator delivering stable rail under dynamic load transients (0–200 mA). Use Value: Enables reliable high-speed data transfer between AP and modem by maintaining <±2% output accuracy and suppressing switching noise from PMIC DC-DC stages. | Use Scenario: Providing regulated 3.6 V to MEMS microphone bias and Class AB headphone driver in Bluetooth earbuds. IC Role / Device Role / Timing Role: Low-noise LDO with fast enable/disable control for audio subsystem power sequencing. Use Value: Eliminates audible pop/click during power-on/off via controlled output ramp and integrated pull-down, while 30 µV noise preserves SNR >105 dB. |
| Portable Media Player Display Backlight | Wearable Sensor Hub Core Supply |
Use Scenario: Powering white LED backlight drivers requiring precise 3.6 V input in compact MP4 players. IC Role / Device Role / Timing Role: Stable, low-ripple voltage source for constant-current LED driver ICs. Use Value: Maintains consistent LED brightness across battery discharge (3.0–4.2 V input) due to 60 mV dropout and tight line regulation (±0.1%/V). | Use Scenario: Delivering 3.6 V to ultra-low-power sensor fusion MCU and inertial measurement unit (IMU) in fitness trackers. IC Role / Device Role / Timing Role: Always-on LDO with sub-1 µA shutdown current for system sleep states. Use Value: Extends battery runtime to >7 days by minimizing quiescent current during motion-detection idle periods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0536PDBVR | 3.6 V fixed output, 200 mA, 170 mV dropout at 200 mA, SOT-23-5 package (2.9 mm × 1.6 mm) | Larger footprint, higher dropout limits usable input range; no integrated pull-down switch | Select when board space allows larger package and fast output discharge is not required. |
| MCP1700T-3602E/MB | 3.6 V fixed output, 250 mA, 175 mV dropout at 250 mA, SOT-23-3 package (2.9 mm × 1.3 mm) | No enable pin or pull-down; unregulated shutdown behavior; higher noise (40 µV RMS) | Choose for cost-sensitive, non-sequenced applications where enable control and low-noise are secondary. |
Compared with TPS7A0536PDBVR and MCP1700T-3602E/MB, LD6806CX4/36P,315 delivers superior efficiency in low-input-voltage scenarios (60 mV vs. ≥170 mV dropout), guaranteed fast shutdown via integrated pull-down, and lower noise-making it optimal for space-constrained, battery-powered audio and RF subsystems demanding precision regulation.
Availability
LD6806CX4/36P,315 is available at Aetrix Electronics and suitable for mobile handset power management, wireless audio subsystems, and portable display backlighting requiring stable component supply, RoHS-compliant packaging, and long-term production continuity.
Supply support for LD6806CX4/36P,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 portfolio, engineered specifically for power integrity in space-constrained portable electronics where dropout voltage, output noise, and thermal reliability are critical.
FAQ
What is the maximum input voltage rating for LD6806CX4/36P,315?
The LD6806CX4/36P,315 supports an absolute maximum input voltage of +6.0 V on the IN pin for transient events up to 4 ms, with recommended continuous operation between 2.3 V and 5.5 V. Exceeding 6.0 V risks permanent damage to the internal PMOS pass transistor and bandgap reference circuitry.
Does LD6806CX4/36P,315 require an external output capacitor, and what type is recommended?
Yes, LD6806CX4/36P,315 requires a minimum 1.0 µF X7R ceramic capacitor on the OUT pin for stability and transient response. The capacitor must have ESR between 5 mΩ and 500 mΩ and be rated for −40 °C to +125 °C to meet full device specifications. Smaller values (down to 0.7 µF) may work but reduce shutdown time margin and stability robustness.
How does the pull-down switch in LD6806CX4/36P,315 function during disable?
When the EN pin is driven LOW (≤0.4 V), LD6806CX4/36P,315 activates an internal NMOS transistor between OUT and GND, providing a 100 Ω typical pull-down resistance. This discharges output capacitance in <300 µs, preventing floating voltage rails that could cause unintended logic states or leakage in downstream circuits.
What is the thermal shutdown behavior of LD6806CX4/36P,315?
LD6806CX4/36P,315 triggers thermal shutdown at 160 °C junction temperature and remains disabled until junction temperature falls by 20 K (to ~140 °C) due to built-in hysteresis. This prevents cycling during thermal overload and protects both the IC and PCB from sustained overheating.
Is LD6806CX4/36P,315 compatible with lead-free reflow soldering processes?
Yes, LD6806CX4/36P,315 is fully compatible with lead-free reflow soldering per J-STD-020C. Its WLCSP4 package (thickness 0.47 mm, volume <350 mm³) requires a peak reflow temperature of 260 °C. Moisture sensitivity level (MSL) must be observed per packing label to prevent popcorning during reflow.
LD6806CX4/36P,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):
- 3.6V
- 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)
LD6806CX4/36P,315 FAQ
1.How can I place an order for LD6806CX4/36P,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806CX4/36P,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 LD6806CX4/36P,315 reliable?
The price and inventory of LD6806CX4/36P,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6806CX4/36P,315 is usually 5 days.
3.What payment methods are accepted for LD6806CX4/36P,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806CX4/36P,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806CX4/36P,315?
LD6806CX4/36P,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806CX4/36P,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 LD6806CX4/36P,315?
For technical support, including LD6806CX4/36P,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806CX4/36P,315 requirements.
6.How does Aetrix verify that LD6806CX4/36P,315 is sourced from the original manufacturer or authorized distributors?
All LD6806CX4/36P,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 LD6806CX4/36P,315 meets industry standards.
7.What is the process for return or replacement of LD6806CX4/36P,315?
All LD6806CX4/36P,315 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806CX4/36P,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 LD6806CX4/36P,315 part is unused and in its original packaging.
Return procedure for LD6806CX4/36P,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LD6806CX4/36P,315 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
