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NXP Semiconductors LD6836CX4/20H,315
- Part No.:
- LD6836CX4/20H,315
- Manufacturer:
- NXP Semiconductors
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
LD6836CX4/20H,315.pdf
- Description:
- IC REG LINEAR 2V 300MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:18,000
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Product details
Overview
LD6836CX4/20H,315 from NXP Semiconductors is a 2.0 V fixed-output, 300 mA ultra-low-dropout linear regulator in a 0.4 mm pitch WLCSP4 package (0.76 × 0.76 × 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 - optimized for space-constrained mobile power rails in smartphones and portable media players.
For engineers reviewing the LD6836CX4/20H,315 datasheet, LD6836CX4/20H,315 pinout, LD6836CX4/20H,315 application, or LD6836CX4/20H,315 equivalent, key selection criteria include its 2.0 V output accuracy (±0.5% at +25°C), 55 dB PSRR at 1 kHz, 150 µs startup time, and thermal shutdown protection at 160°C - all validated for operation across −40°C to +85°C ambient.
Technical Context
The LD6836CX4/20H,315 implements a PMOS pass transistor architecture enabling ultra-low dropout voltage and stable regulation with only 1 µF external output capacitance. Its enable input (active HIGH, VIH ≥ 1.1 V) controls a high-impedance output state when disabled, eliminating residual leakage paths in battery-powered systems.
Internally integrated over-temperature protection (160°C shutdown with 20 K hysteresis) and output current limiting (600 mA short-circuit current) ensure robustness in transient fault conditions. The device meets 10 kV HBM ESD rating and operates across 2.3 V–5.5 V input range while maintaining ±3% total output voltage variation over temperature and load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.0 V ±0.5% at +25°C; ±3% over −40°C to +85°C - ensures stable core/sensor rail without external feedback. |
| Dropout Voltage | 90 mV typical at 300 mA - enables >95% efficiency at low VIN–VOUT margins (e.g., 2.3 V input → 2.0 V output). |
| PSRR | 55 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz) - supports noise-sensitive analog circuits (ADCs, RF receivers) without additional filtering. |
| Quiescent Current | 0.1 µA typical in shutdown mode - extends battery life in always-on standby applications. |
| Enable Threshold | VIL ≤ 0.4 V, VIH ≥ 1.1 V - compatible with 1.8 V/3.3 V GPIO logic without level-shifting. |
| Thermal Resistance | 130 K/W (junction-to-ambient) - requires minimal PCB copper area for thermal management in compact layouts. |
Pinout & Package
LD6836CX4/20H,315 uses a 4-bump Wafer-Level Chip-Scale Package (WLCSP4) with 0.4 mm pitch and footprint 0.76 mm × 0.76 mm. Solder bumps are arranged in 2×2 grid; bump A1 is index corner (see Figure 2 of datasheet).
| 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. |
| EN | Enable input (active HIGH) | Controls regulator ON/OFF; pulls output to high-impedance state when < 0.4 V; requires no pull-up for default OFF. |
| OUT | Regulated output voltage | Delivers 2.0 V to load; requires ≥0.7 µF X7R ceramic capacitor (ESR 5–500 mΩ) for stability. |
| IN | Input voltage supply | Accepts 2.3–5.5 V; benefits from 1 µF input decoupling capacitor near package to reduce ripple coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 90 mV at 300 mA enables operation from single-cell Li-ion (2.7 V min) down to 2.0 V output with margin. |
| Low-noise regulation | 30 µVRMS noise supports precision analog subsystems without added LDO post-filtering stages. |
| High-impedance disable | Output floats (not pulled) when EN = LOW - prevents back-powering or loading of downstream circuitry. |
| Integrated protection | Thermal shutdown (160°C) and current limiting (600 mA) eliminate need for external fault-handling circuitry. |
| Miniaturized packaging | 0.76 mm × 0.76 mm WLCSP4 footprint saves >70% board area vs. SOT753, critical for thin mobile designs. |
Applications
| Smartphone Core Rail | Digital Camera Sensor Bias |
|---|---|
|
Use Scenario: Powering application processor I/O or memory interface rails in slim smartphone form factors where board space and thermal dissipation are constrained. IC Role / Device Role / Timing Role: Primary low-noise, low-dropout voltage regulator delivering stable 2.0 V to high-speed digital interfaces. Use Value: 90 mV dropout preserves battery runtime; 30 µVRMS noise prevents bit errors in DDR I/O signaling. |
Use Scenario: Supplying image sensor analog front-end (AFE) and ADC reference in compact digital still cameras. IC Role / Device Role / Timing Role: Clean, regulated 2.0 V bias source for noise-sensitive analog pixel readout circuitry. Use Value: 55 dB PSRR rejects switching noise from camera module DC-DC; ±0.5% accuracy ensures consistent exposure calibration. |
| Portable Media Player Audio Codec | Personal Navigation Device GPS Front-End |
|
Use Scenario: Providing clean 2.0 V supply to audio codec DACs and headphone amplifiers in battery-powered media players. IC Role / Device Role / Timing Role: Low-noise LDO isolating sensitive audio circuitry from noisy system power domains. Use Value: 30 µVRMS output noise eliminates audible hiss; 150 µs fast startup enables instant audio playback on wake. |
Use Scenario: Powering GPS/GNSS RF front-end LNA and baseband ICs in handheld navigation devices. IC Role / Device Role / Timing Role: Stable 2.0 V supply with high PSRR to maintain RF sensitivity in electrically noisy automotive/portable environments. Use Value: 55 dB PSRR at 1 kHz suppresses interference from display backlight drivers; 10 kV HBM ESD protects against handling damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LD6836CX4/20P | Same WLCSP4 package and 2.0 V output, but includes integrated pull-down transistor for auto-discharge during disable. | Required where rapid output discharge is needed (e.g., multi-rail sequencing, safety-critical shutdown). | Select LD6836CX4/20P if downstream circuitry must be actively pulled to GND when disabled; LD6836CX4/20H,315 maintains high-Z state. |
| TPS7A0520PDBVR | 2.0 V fixed-output, 200 mA LDO in 1.2 mm × 1.2 mm SOT-23-5; higher dropout (175 mV @ 200 mA) and higher noise (45 µVRMS). | Suitable for less space-constrained designs where WLCSP handling is impractical or reflow process lacks fine-pitch capability. | Choose TPS7A0520PDBVR only if board assembly cannot support 0.4 mm pitch WLCSP; otherwise LD6836CX4/20H,315 offers superior noise and size. |
Compared with LD6836CX4/20P, LD6836CX4/20H,315 avoids output discharge current during disable - reducing quiescent power in always-on sensors. Versus TPS7A0520PDBVR, it delivers 40% lower dropout and 33% lower noise in half the footprint, justifying WLCSP adoption where miniaturization is critical.
Availability
LD6836CX4/20H,315 is available at Aetrix Electronics and suitable for smartphone core rails, digital camera sensor bias, portable media player audio codecs, and personal navigation device GPS front-ends requiring stable component supply with guaranteed long-term sourcing.
Supply support for LD6836CX4/20H,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 consumer electronics, with leadership in power management and RF technologies.
The LD6836 series was designed specifically for ultra-miniaturized, low-noise power delivery in portable battery-operated devices - emphasizing wafer-level packaging, sub-100 mV dropout, and integrated protection for next-generation mobile platforms.
FAQ
What is the nominal output voltage and tolerance of LD6836CX4/20H,315?
The LD6836CX4/20H,315 provides a fixed 2.0 V output with ±0.5% accuracy at +25°C and ±3% over the full operating temperature range (−40°C to +85°C). This tight tolerance ensures reliable operation of voltage-sensitive digital I/O and analog sensor interfaces without external trimming components.
Does LD6836CX4/20H,315 require external capacitors, and what values are recommended?
Yes, LD6836CX4/20H,315 requires a minimum 0.7 µF X7R ceramic capacitor on the output (CL(ext)) for stability, with 1.0 µF recommended. An input capacitor (Ci(ext)) of 1.0 µF is also advised. Capacitor ESR must be between 5 mΩ and 500 mΩ; deviation risks oscillation or poor transient response.
How does the enable function operate on LD6836CX4/20H,315?
The LD6836CX4/20H,315 features an active-HIGH enable pin (EN): applying ≥1.1 V turns the regulator ON with 150 µs startup time; pulling EN ≤0.4 V disables the device and places the OUT pin in a high-impedance (3-state) condition - preventing back-powering or loading of downstream circuits.
What thermal protection does LD6836CX4/20H,315 include?
LD6836CX4/20H,315 integrates over-temperature protection that shuts down the regulator at 160°C junction temperature, with 20 K hysteresis to prevent cycling. Thermal resistance is 130 K/W (junction-to-ambient), so PCB layout must provide adequate copper area to avoid exceeding this limit under 300 mA load.
Is LD6836CX4/20H,315 RoHS-compliant and halogen-free?
Yes, LD6836CX4/20H,315 is Pb-free, RoHS-compliant, and fully halogen- and antimony-free (dark green compliant), meeting environmental requirements for consumer electronics including smartphones and portable media devices.
LD6836CX4/20H,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):
- 2V
- 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)
LD6836CX4/20H,315 FAQ
1.How can I place an order for LD6836CX4/20H,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6836CX4/20H,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 LD6836CX4/20H,315 reliable?
The price and inventory of LD6836CX4/20H,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6836CX4/20H,315 is usually 5 days.
3.What payment methods are accepted for LD6836CX4/20H,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6836CX4/20H,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6836CX4/20H,315?
LD6836CX4/20H,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6836CX4/20H,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 LD6836CX4/20H,315?
For technical support, including LD6836CX4/20H,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6836CX4/20H,315 requirements.
6.How does Aetrix verify that LD6836CX4/20H,315 is sourced from the original manufacturer or authorized distributors?
All LD6836CX4/20H,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 LD6836CX4/20H,315 meets industry standards.
7.What is the process for return or replacement of LD6836CX4/20H,315?
All LD6836CX4/20H,315 units undergo pre-shipment inspection (PSI). If there is an issue with LD6836CX4/20H,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 LD6836CX4/20H,315 part is unused and in its original packaging.
Return procedure for LD6836CX4/20H,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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