My Inquiry
My Account
NXP Semiconductors LD6806CX4/29P,315
- Part No.:
- LD6806CX4/29P,315
- Manufacturer:
- NXP Semiconductors
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
LD6806CX4/29P,315.pdf
- Description:
- IC REG LINEAR 2.9V 200MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:9,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LD6806CX4/29P,315 from NXP Semiconductors is a 2.9 V, 200 mA ultra-low-dropout linear regulator in a 0.76 mm × 0.76 mm WLCSP4 package with 60 mV dropout at full load, 30 µVRMS output noise (10 Hz–100 kHz), and active-HIGH enable pin. It delivers stable low-noise power for space-constrained mobile interfaces requiring precise 2.9 V supply rails.
For engineers reviewing the LD6806CX4/29P,315 datasheet, LD6806CX4/29P,315 pinout, LD6806CX4/29P,315 application, or LD6806CX4/29P,315 equivalent, key selection criteria include its 2.9 V fixed output, low-ohmic pull-down during disable (Rpd = 100 Ω), 200 µs startup time, and thermal shutdown with 20 K hysteresis - critical for battery-powered portable electronics.
Technical Context
The LD6806CX4/29P,315 uses a monolithic silicon regulator design with internal voltage reference, error amplifier, and PMOS pass transistor. Its low-ohmic output stage during disable (enabled by integrated pull-down transistor) ensures rapid discharge of output capacitance without external components.
It integrates thermal protection (Tsd = 160 °C, hysteresis = 20 K), overcurrent limiting, and 10 kV HBM ESD protection. The device operates across −40 °C to +85 °C ambient and supports input voltages from 2.3 V to 5.5 V while maintaining ±0.5% output accuracy at +25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.9 V ±3% over −40 °C to +85 °C; enables direct replacement of 2.9 V logic rails without external feedback. |
| Dropout Voltage | 60 mV typical at 200 mA; allows operation with VIN as low as 2.96 V, maximizing battery runtime in single-cell Li-ion systems. |
| Noise (RMS) | 30 µV over 10 Hz–100 kHz; meets low-noise requirements for RF front-end biasing and precision analog circuitry. |
| PSRR | −55 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Startup Time | 200 µs to 95% of 2.9 V; supports fast wake-up sequences in power-gated subsystems. |
| Quiescent Current | 70–100 µA active; 0.1–1.0 µA in shutdown; minimizes standby leakage in always-on sensor nodes. |
| 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. |
Pinout & Package
LD6806CX4/29P,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, optimized for ultra-miniaturized PCB layouts.
| 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) | Directly driven by host MCU GPIO; asserts regulator only when ≥1.4 V applied; pulls output low when deasserted. |
| OUT | Regulated output | Delivers 2.9 V to load; requires ≥1.0 µF X7R ceramic capacitor with 5–500 mΩ ESR for stability. |
| IN | Input supply | Accepts 2.3–5.5 V; must be decoupled with ≥1.0 µF capacitor close to pin to suppress high-frequency ripple. |
Key Features
| Feature | Design Value |
|---|---|
| Low-ohmic disable state | Integrated 100 Ω pull-down transistor discharges output capacitance rapidly, preventing floating voltage on powered-down rails. |
| Ultra-low noise regulation | 30 µVRMS output noise enables clean power for RF transceivers and high-resolution ADCs without additional filtering. |
| Fast transient response | 200 µs startup and <300 µs shutdown support dynamic power sequencing in multi-rail SoC applications. |
| Robust thermal protection | 160 °C junction shutdown with 20 K hysteresis prevents latch-up and enables safe recovery after overload events. |
| Pb-free & halogen-free | RoHS-compliant, dark green compliant package meets strict environmental standards for consumer and portable electronics. |
Applications
| Mobile Phone Baseband Power | Wireless Headset Audio Bias |
|---|---|
Use Scenario: Supplying 2.9 V to baseband processor I/O banks in slim smartphone designs where board area is constrained. IC Role / Device Role / Timing Role: Primary low-noise LDO delivering regulated core voltage to digital interface circuits with tight voltage tolerance. Use Value: 60 mV dropout extends usable battery range by enabling operation down to 2.96 V input, while 30 µV noise prevents digital crosstalk into sensitive RF sections. | Use Scenario: Providing clean 2.9 V bias to MEMS microphones and Class-D audio amplifiers in Bluetooth headsets. IC Role / Device Role / Timing Role: Low-noise post-regulator stabilizing switched-mode supply output for analog signal chain integrity. Use Value: −55 dB PSRR at 1 kHz attenuates DC-DC ripple, and fast 200 µs startup synchronizes with Bluetooth link establishment timing. |
| Portable Media Player Display Interface | Wearable Sensor Hub Power |
Use Scenario: Powering MIPI D-PHY lanes and display driver ICs requiring stable 2.9 V with minimal EMI in compact media players. IC Role / Device Role / Timing Role: Dedicated LDO for high-speed serial interface rail, decoupled from noisy system supplies. Use Value: WLCSP4 footprint (0.76 mm²) saves >70% board area vs. SOT753, and 10 kV HBM ESD rating protects against handling damage during assembly. | Use Scenario: Regulating 2.9 V for ultra-low-power inertial measurement units (IMUs) and environmental sensors in fitness trackers. IC Role / Device Role / Timing Role: Always-on LDO with sub-1 µA shutdown current preserving battery life during sleep modes. Use Value: 0.1 µA typical shutdown quiescent current extends shelf life and operational runtime; thermal watchdog prevents sensor drift under sustained load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0529PDBVR | 200 mA, 2.9 V fixed, 170 mV dropout at 200 mA; SOT-23-5 package; no integrated pull-down. | Lacks low-ohmic disable; requires external pulldown resistor for output discharge. | Select when board area is less constrained and external BOM count is acceptable. |
| MCP1700-2902E/TO | 250 mA, 2.9 V fixed, 175 mV dropout at 250 mA; TO-92 through-hole; higher quiescent current (2 µA). | Through-hole mounting incompatible with high-density SMT layouts; larger footprint. | Select only for prototyping or legacy through-hole designs where miniaturization is not required. |
Compared with TPS7A0529PDBVR and MCP1700-2902E/TO, LD6806CX4/29P,315 offers superior dropout performance (60 mV vs. ≥170 mV), integrated pull-down for automatic output discharge, and a 0.76 mm² WLCSP4 footprint - making it optimal for space- and noise-sensitive portable electronics where board real estate and power sequencing are critical.
Availability
LD6806CX4/29P,315 is available at Aetrix Electronics and suitable for mobile phone handsets, wireless headsets, portable media players, and wearable sensor hubs requiring stable component supply, low-noise regulation, and ultra-miniature packaging.
Supply support for LD6806CX4/29P,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 consumer applications.
The LD6806 series was designed specifically for ultra-miniaturized portable electronics, emphasizing low dropout, low noise, and integrated power management features like active-HIGH enable and thermal protection.
FAQ
What is the output voltage tolerance of the LD6806CX4/29P,315 across temperature?
The LD6806CX4/29P,315 maintains ±3% output voltage tolerance over the full operating ambient temperature range of −40 °C to +85 °C. At +25 °C, the tolerance tightens to ±0.5%, ensuring high accuracy for precision analog and digital interface rails in portable devices.
Does the LD6806CX4/29P,315 require an external pull-down resistor on the output pin?
No, the LD6806CX4/29P,315 does not require an external pull-down resistor. It integrates a 100 Ω pull-down transistor that activates automatically when the EN pin is deasserted (LOW), ensuring rapid and reliable discharge of the output capacitor without additional components.
What is the minimum recommended output capacitor for stable operation of the LD6806CX4/29P,315?
The LD6806CX4/29P,315 requires a minimum 1.0 µF X7R ceramic capacitor on the OUT pin for stable operation. The capacitor must have an ESR between 5 mΩ and 500 mΩ and be placed as close as possible to the device to minimize loop inductance and ensure robust transient response.
Can the LD6806CX4/29P,315 operate with a 2.5 V input supply?
Yes, the LD6806CX4/29P,315 can operate with a 2.5 V input supply, but it will be in dropout since the nominal output is 2.9 V. In dropout, regulation is lost and VOUT ≈ VIN − Vdo; with 60 mV typical dropout, output would be ~2.44 V - insufficient for 2.9 V loads. Minimum functional input is 2.96 V.
What package type and dimensions does the LD6806CX4/29P,315 use?
The LD6806CX4/29P,315 uses a wafer-level chip-scale package (WLCSP4) with dimensions 0.76 mm × 0.76 mm × 0.47 mm and 0.4 mm bump pitch. This ultra-compact footprint enables high-density PCB layouts in smartphones, wearables, and other space-constrained portable electronics.
LD6806CX4/29P,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):
- 2.9V
- 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)
LD6806CX4/29P,315 FAQ
1.How can I place an order for LD6806CX4/29P,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6806CX4/29P,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 LD6806CX4/29P,315 reliable?
The price and inventory of LD6806CX4/29P,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6806CX4/29P,315 is usually 5 days.
3.What payment methods are accepted for LD6806CX4/29P,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6806CX4/29P,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6806CX4/29P,315?
LD6806CX4/29P,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6806CX4/29P,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 LD6806CX4/29P,315?
For technical support, including LD6806CX4/29P,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6806CX4/29P,315 requirements.
6.How does Aetrix verify that LD6806CX4/29P,315 is sourced from the original manufacturer or authorized distributors?
All LD6806CX4/29P,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 LD6806CX4/29P,315 meets industry standards.
7.What is the process for return or replacement of LD6806CX4/29P,315?
All LD6806CX4/29P,315 units undergo pre-shipment inspection (PSI). If there is an issue with LD6806CX4/29P,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 LD6806CX4/29P,315 part is unused and in its original packaging.
Return procedure for LD6806CX4/29P,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LD6806CX4/29P,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…
