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NXP Semiconductors LD6836CX4/14H,315
- Part No.:
- LD6836CX4/14H,315
- Manufacturer:
- NXP Semiconductors
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
LD6836CX4/14H,315.pdf
- Description:
- IC REG LINEAR 1.4V 300MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:18,000
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Product details
Overview
LD6836CX4/14H,315 from NXP Semiconductors is a 1.4 V fixed-output, 300 mA ultra-low-dropout linear regulator in a 0.4 mm pitch WLCSP4 package (0.76 mm × 0.76 mm × 0.47 mm), featuring 90 mV dropout at full load, 30 µVRMS output noise (10 Hz–100 kHz), and high-ohmic (3-state) output during disable - designed for power-sensitive mobile interfaces in smartphones and portable media players.
For engineers reviewing the LD6836CX4/14H,315 datasheet, LD6836CX4/14H,315 pinout, LD6836CX4/14H,315 application, or LD6836CX4/14H,315 equivalent, key selection criteria include its 1.4 V output accuracy (±0.5% at +25°C), 55 dB PSRR at 1 kHz, 150 µs startup time, 0.1 µA shutdown quiescent current, and thermal protection up to 160°C - all critical for compact battery-powered systems requiring stable low-noise biasing.
Technical Context
The LD6836CX4/14H,315 implements a PMOS pass transistor architecture enabling ultra-low dropout (90 mV typical at 300 mA) and high PSRR (−55 dB at 1 kHz) without external compensation. Its enable input (active HIGH, VIH ≥ 1.1 V) controls a high-ohmic output state when disabled, eliminating residual leakage paths in standby mode.
Designed for miniaturized portable applications, it operates across 2.3 V–5.5 V input range with ±0.5% output voltage accuracy at +25°C and ±3% over −30°C to +85°C ambient, while maintaining stability with 0.7–1.0 µF X7R ceramic output capacitance and integrated ESD protection (10 kV HBM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.4 V ±0.5% at +25°C; enables precise biasing of 1.4 V logic or analog rails without external feedback. |
| Dropout Voltage | 90 mV typical at 300 mA; allows operation down to VIN = 1.49 V, maximizing battery runtime in single-cell Li-ion or Li-poly systems. |
| PSRR | 55 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters feeding noisy supply domains. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz); supports low-noise analog circuitry (e.g., ADC references, RF LNA bias) without added filtering. |
| Quiescent Current | 0.1 µA typical in shutdown (VEN ≤ 0.4 V); minimizes battery drain during deep sleep modes in always-on sensors or IoT endpoints. |
| Enable Threshold | VIL ≤ 0.4 V / VIH ≥ 1.1 V; compatible with 1.8 V and 3.3 V GPIOs without level-shifting, simplifying host MCU interface. |
| Thermal Protection | Shuts down at 160°C with 20 K hysteresis; prevents thermal runaway during sustained overload or poor PCB heat sinking. |
Pinout & Package
LD6836CX4/14H,315 uses a 4-bump Wafer-Level Chip-Scale Package (WLCSP4) with 0.4 mm pitch, footprint 0.76 mm × 0.76 mm, and height 0.47 mm - optimized for space-constrained mobile PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Supply ground reference | Primary return path for output current and internal bias; must connect to low-impedance ground plane for noise and thermal performance. |
| EN | Enable control input | Active HIGH logic input; drives internal pass transistor; floating state defaults to OFF (high-ohmic output). |
| OUT | Regulated output voltage | Delivers stable 1.4 V to load; requires 0.7–1.0 µF X7R ceramic capacitor with ESR 5–500 mΩ for stability. |
| IN | Input voltage supply | Accepts 2.3–5.5 V input; benefits from local 0.7–1.0 µF input decoupling capacitor near the pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 90 mV at 300 mA enables >95% efficiency at 1.4 V output from 1.5 V sources (e.g., coin cells or partially discharged batteries). |
| Low-noise regulation | 30 µVRMS noise ensures clean power for precision analog blocks without requiring additional LDO stages or ferrite beads. |
| High-ohmic disable | Outputs high-impedance state when EN = LOW, preventing back-powering or unintended loading of downstream circuits during sleep. |
| Integrated ESD protection | 10 kV HBM rating eliminates need for external TVS diodes on IN/OUT pins in handheld device front-end designs. |
| Small WLCSP4 footprint | 0.76 mm × 0.76 mm area reduces PCB real estate by >70% vs. SOT23-5 packages, supporting ultra-thin smartphone and wearable layouts. |
Applications
| Smartphone Baseband Power | Digital Camera Sensor Bias |
|---|---|
|
Use Scenario: Supplying 1.4 V core voltage to baseband processor I/O banks in LTE/5G handsets with tight space constraints and aggressive power cycling. IC Role / Device Role / Timing Role: Primary low-noise, fast-startup LDO delivering regulated 1.4 V rail synchronized to modem enable signals. Use Value: 150 µs startup time ensures rapid wake-up from deep sleep; 0.1 µA shutdown current extends standby battery life beyond 30 days. |
Use Scenario: Providing clean 1.4 V bias to CMOS image sensor analog front-end (AFE) in compact digital still cameras. IC Role / Device Role / Timing Role: Low-noise post-regulator stabilizing switched-mode supply output to meet sensor SNR requirements. Use Value: 30 µVRMS noise and 55 dB PSRR prevent switching artifacts from degrading image quality in low-light capture. |
| Portable Media Player Audio Codec | Wearable Health Sensor Core |
|
Use Scenario: Powering DAC/ADC section of audio codec IC in Bluetooth headphones where EMI and size are critical. IC Role / Device Role / Timing Role: Dedicated LDO isolating sensitive audio circuitry from noisy system rails. Use Value: High-ohmic disable prevents signal coupling during mute/sleep; WLCSP4 footprint fits within 2 mm² board area budget. |
Use Scenario: Regulating 1.4 V for ultra-low-power biosensor ASIC (e.g., PPG, ECG) in fitness bands with coin-cell battery. IC Role / Device Role / Timing Role: Efficient, low-quiescent LDO enabling continuous sensing during multi-day wear. Use Value: 90 mV dropout extends usable battery range by 12% compared to standard LDOs; 10 kV HBM withstands handling ESD in assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LD6836CX4/14P | Same WLCSP4 package and 1.4 V output, but includes pull-down transistor for auto-discharge (low-ohmic output when disabled). | Required where rapid output discharge is needed after shutdown (e.g., to reset downstream logic or avoid latch-up). | Select LD6836CX4/14P only if active discharge is mandatory; LD6836CX4/14H,315 is preferred for zero-load leakage in always-off subsystems. |
| TPS7A0514PDBVR | 1.4 V, 200 mA, 0.5 mm pitch DSBGA6 package (1.06 mm × 1.06 mm); 170 mV dropout at 200 mA; 4.5 µA quiescent current in active mode. | Larger footprint and higher dropout limit use in ultra-low-voltage battery systems; lower max current restricts high-speed interface support. | Choose TPS7A0514PDBVR only if TI ecosystem alignment or different thermal profile is prioritized; LD6836CX4/14H,315 offers superior noise, PSRR, and current capability in smaller area. |
Compared with LD6836CX4/14P, LD6836CX4/14H,315 provides true high-ohmic disable for zero standby leakage, while versus TPS7A0514PDBVR it delivers 100 mA more output current, 80 mV lower dropout, and 30× lower output noise - making it optimal for noise-critical, space-constrained, high-efficiency portable power rails.
Availability
LD6836CX4/14H,315 is available at Aetrix Electronics and suitable for smartphone baseband power, portable media player audio codecs, and wearable health sensor core applications requiring stable component supply, consistent wafer-lot traceability, and long-term lifecycle support.
Supply support for LD6836CX4/14H,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 leader focused on secure connectivity solutions for automotive, industrial, and mobile applications, with broad analog and power management IP.
The LD6836 series was developed specifically for ultra-miniaturized portable electronics, emphasizing ultra-low dropout, low noise, and WLCSP packaging to meet stringent size and efficiency demands in smartphones and wearables.
FAQ
What is the nominal output voltage and tolerance of the LD6836CX4/14H,315?
The LD6836CX4/14H,315 delivers a fixed 1.4 V output with ±0.5% accuracy at +25°C ambient temperature and ±3% over the full operating range of −30°C to +85°C. This tight tolerance ensures reliable operation of 1.4 V logic and analog circuits without external trimming or calibration.
Does the LD6836CX4/14H,315 require an external output capacitor, and what are the specifications?
Yes, the LD6836CX4/14H,315 requires an external ceramic output capacitor of 0.7–1.0 µF (X7R dielectric recommended) with ESR between 5 mΩ and 500 mΩ. This capacitor ensures loop stability, reduces output ripple, and affects shutdown timing - undersizing risks oscillation or slow transient response.
What is the dropout voltage specification for the LD6836CX4/14H,315 at full load?
The LD6836CX4/14H,315 has a typical dropout voltage of 90 mV at 300 mA output current and maximum of 160 mV under worst-case conditions. This allows the device to regulate 1.4 V output even when input drops to 1.49 V, extending usable battery life in single-cell systems.
How does the enable function operate on the LD6836CX4/14H,315?
The LD6836CX4/14H,315 features an active HIGH enable input (EN pin) with VIH ≥ 1.1 V and VIL ≤ 0.4 V. When EN is pulled HIGH, the regulator powers up with 150 µs startup time; when EN is LOW, the output enters high-ohmic (3-state) mode, drawing only 0.1 µA quiescent current.
Is the LD6836CX4/14H,315 RoHS-compliant and halogen-free?
Yes, the LD6836CX4/14H,315 is Pb-free, RoHS-compliant, and fully halogen- and antimony-free (dark green compliant), meeting strict environmental regulations for consumer electronics including smartphones and wearables sold globally.
LD6836CX4/14H,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):
- 1.4V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.16V @ 300mA
- Current - Output:
- 300mA
- 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)
LD6836CX4/14H,315 FAQ
1.How can I place an order for LD6836CX4/14H,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6836CX4/14H,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 LD6836CX4/14H,315 reliable?
The price and inventory of LD6836CX4/14H,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6836CX4/14H,315 is usually 5 days.
3.What payment methods are accepted for LD6836CX4/14H,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6836CX4/14H,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6836CX4/14H,315?
LD6836CX4/14H,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6836CX4/14H,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 LD6836CX4/14H,315?
For technical support, including LD6836CX4/14H,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6836CX4/14H,315 requirements.
6.How does Aetrix verify that LD6836CX4/14H,315 is sourced from the original manufacturer or authorized distributors?
All LD6836CX4/14H,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 LD6836CX4/14H,315 meets industry standards.
7.What is the process for return or replacement of LD6836CX4/14H,315?
All LD6836CX4/14H,315 units undergo pre-shipment inspection (PSI). If there is an issue with LD6836CX4/14H,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 LD6836CX4/14H,315 part is unused and in its original packaging.
Return procedure for LD6836CX4/14H,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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