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NXP Semiconductors LD6836CX4/16H,315
- Part No.:
- LD6836CX4/16H,315
- Manufacturer:
- NXP Semiconductors
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
LD6836CX4/16H,315.pdf
- Description:
- IC REG LINEAR 1.6V 300MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:18,000
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Product details
Overview
LD6836CX4/16H,315 from NXP Semiconductors is a 1.6 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 LD6836CX4/16H,315 datasheet, LD6836CX4/16H,315 pinout, LD6836CX4/16H,315 application, or LD6836CX4/16H,315 equivalent, key selection criteria include its 1.6 V fixed output, 2.3–5.5 V input range, 150 µs startup time, 55 dB PSRR at 1 kHz, and thermal shutdown at 160 °C - all validated for miniaturized battery-powered systems requiring low-noise, low-quiescent-current regulation.
Technical Context
The LD6836CX4/16H,315 implements a PMOS pass transistor architecture enabling ultra-low dropout (90 mV @ 300 mA) and stable operation with only 0.7 µF external output capacitance. Its enable pin (active HIGH, VIH ≥ 1.1 V) controls a high-ohmic output state when disabled, eliminating residual leakage paths in sleep mode.
Internally integrated over-temperature protection (160 °C shutdown with 20 K hysteresis) and output current limiting (600 mA short-circuit current) ensure robustness in thermally constrained portable designs. The device meets 10 kV HBM ESD rating and operates across −40 °C to +85 °C ambient temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 1.6 V ±3 % over −30 °C to +85 °C - ensures stable core logic supply without external feedback components. |
| Dropout voltage | 90 mV typical at 300 mA - enables operation down to VIN = 1.69 V, maximizing battery runtime in single-cell Li-ion systems. |
| Quiescent current | 0.1 µA typical in shutdown (VEN ≤ 0.4 V) - minimizes standby power loss in always-on subsystems. |
| 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 like ADCs and RF front-ends. |
| Startup time | 150 µs to 95 % of 1.6 V - enables fast wake-up from deep-sleep states in mobile SoC power domains. |
| Thermal resistance | 130 K/W (junction-to-ambient) - requires minimal PCB copper area for thermal management in compact layouts. |
Pinout & Package
LD6836CX4/16H,315 uses a 4-bump Wafer-Level Chip-Scale Package (WLCSP4) with 0.4 mm pitch and footprint 0.76 mm × 0.76 mm. Bump layout follows 2×2 grid with index area marking bump A1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Supply ground | Reference node for all internal circuitry; must connect to low-impedance system ground plane. |
| EN | Enable input (active HIGH) | Logic-level control: ≥1.1 V enables regulation; ≤0.4 V disables output into high-ohmic state. |
| OUT | Regulator output voltage | Delivers regulated 1.6 V; requires ≥0.7 µF X7R ceramic capacitor for stability. |
| IN | Regulator input voltage | Accepts 2.3–5.5 V; decoupling capacitor recommended to suppress input ripple. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 90 mV at 300 mA enables >94 % efficiency at 1.6 V output from 2.3 V input - critical for extending battery life. |
| Low-noise regulation | 30 µVRMS output noise supports precision analog signal chains without additional filtering. |
| High-ohmic disable | Output floats (not pulled) when disabled - prevents unintended loading of downstream circuits during sleep. |
| Integrated protection | Over-temperature shutdown (160 °C) and current limiting (600 mA) eliminate need for external fault management. |
| Miniature packaging | 0.76 mm × 0.76 mm WLCSP4 footprint saves >70 % board area vs. SOT753 - ideal for space-constrained mobile PCBs. |
Applications
| Smartphone Core Logic Supply | Digital Still Camera Sensor Bias |
|---|---|
Use Scenario: Powering ARM Cortex-M core and memory subsystems in smartphone application processors during active and low-power modes. IC Role / Device Role / Timing Role: Primary low-noise, low-dropout voltage regulator delivering stable 1.6 V to digital logic blocks with fast transient response. Use Value: 150 µs startup and 0.1 µA shutdown current enable rapid wake/sleep cycling while minimizing quiescent drain on single-cell Li-ion batteries. | Use Scenario: Providing clean bias voltage to CMOS image sensor analog front-end and ADC reference circuits. IC Role / Device Role / Timing Role: Low-noise LDO supplying regulated 1.6 V to noise-sensitive imaging circuitry, rejecting switching noise from main PMIC rails. Use Value: 30 µVRMS output noise and 55 dB PSRR preserve image SNR and reduce fixed-pattern noise in high-resolution sensors. |
| Portable Media Player Audio Codec | Personal Navigation Device GPS Baseband |
Use Scenario: Powering stereo audio codec ICs in handheld music players where EMI and battery life are critical constraints. IC Role / Device Role / Timing Role: Dedicated LDO for audio DAC/ADC section, isolating sensitive analog stages from noisy digital supplies. Use Value: High-ohmic disable prevents pop/click artifacts during playback pause; 90 mV dropout extends playback time from aging batteries. | Use Scenario: Supplying baseband processor and GNSS RF frontend in compact GPS receivers with tight thermal budgets. IC Role / Device Role / Timing Role: Compact, thermally efficient 1.6 V regulator for low-power GNSS SoCs operating in intermittent acquisition mode. Use Value: 130 K/W thermal resistance and −40 °C to +85 °C operation ensure reliable performance inside sealed automotive-grade enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LD6836CX4/16P | Same 1.6 V output and WLCSP4 package, but includes pull-down transistor for auto-discharge during disable. | Required where rapid output discharge is needed (e.g., multi-rail sequencing), not suitable if floating output is mandatory. | Select LD6836CX4/16P only when active discharge is required; LD6836CX4/16H,315 is preferred for zero-leakage sleep states. |
| LD6836TD/16H | SOT753 (5-pin) package, 100 mV typical dropout, 125 K/W thermal resistance, same 1.6 V output and high-ohmic disable behavior. | Used where manual rework, test probing, or higher thermal mass is acceptable; not suitable for ultra-dense layouts. | Choose LD6836TD/16H for prototyping or cost-sensitive non-miniaturized designs; LD6836CX4/16H,315 is optimal for production-scale mobile devices. |
Compared with LD6836CX4/16P, LD6836CX4/16H,315 avoids output discharge leakage but sacrifices auto-reset capability; versus LD6836TD/16H, it delivers 20 % smaller footprint and 4 % lower dropout at the cost of reduced thermal margin and no test pads.
Availability
LD6836CX4/16H,315 is available at Aetrix Electronics and suitable for smartphone power management, portable media player audio subsystems, and GPS baseband supply requiring stable component supply, RoHS-compliant packaging, and guaranteed long-term availability for consumer electronics production.
Supply support for LD6836CX4/16H,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, with leadership in power management and interface ICs.
The LD6836 series is part of NXP's ultra-low-noise, ultra-low-dropout LDO portfolio targeting space-constrained portable electronics - engineered to replace legacy regulators in battery-powered devices demanding high PSRR, low quiescent current, and miniature packaging.
FAQ
What is the nominal output voltage of the LD6836CX4/16H,315?
The LD6836CX4/16H,315 delivers a fixed nominal output voltage of 1.6 V, with ±3 % tolerance over −30 °C to +85 °C ambient temperature and ±0.5 % at +25 °C. This value is laser-trimmed during manufacturing and does not require external resistive feedback - ensuring consistent performance across production lots without calibration.
Does the LD6836CX4/16H,315 support active discharge during shutdown?
No, the LD6836CX4/16H,315 does not provide active discharge. It features a high-ohmic (3-state) output when disabled via the EN pin, meaning the OUT terminal floats rather than being pulled to GND. For auto-discharge functionality, use the LD6836CX4/16P variant, which integrates a pull-down transistor.
What is the minimum external output capacitance required for stable operation of the LD6836CX4/16H,315?
The LD6836CX4/16H,315 requires a minimum external output capacitance of 0.7 µF, with X7R dielectric recommended to maintain stability across −40 °C to +125 °C. The specified capacitor tolerance is ±30 % or better, and ESR must be between 5 mΩ and 500 mΩ to ensure phase margin and prevent oscillation.
Can the LD6836CX4/16H,315 operate from a 2.0 V input supply?
No - the LD6836CX4/16H,315 has a minimum input voltage of 2.3 V per its absolute operating conditions. At 1.6 V output, a 2.0 V input falls below the required headroom (VIN ≥ VOUT + VDO ≈ 1.69 V), but more critically violates the 2.3 V lower limit for internal reference and control circuitry operation.
Is the LD6836CX4/16H,315 RoHS-compliant and halogen-free?
Yes, the LD6836CX4/16H,315 is fully RoHS-compliant and halogen-free, meeting NXP's "dark green" compliance standard - meaning it contains no brominated flame retardants, antimony trioxide, or other restricted halogenated compounds, and is lead-free per JEDEC J-STD-020.
LD6836CX4/16H,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):
- 1.6V
- 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)
LD6836CX4/16H,315 FAQ
1.How can I place an order for LD6836CX4/16H,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6836CX4/16H,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 LD6836CX4/16H,315 reliable?
The price and inventory of LD6836CX4/16H,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6836CX4/16H,315 is usually 5 days.
3.What payment methods are accepted for LD6836CX4/16H,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6836CX4/16H,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6836CX4/16H,315?
LD6836CX4/16H,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6836CX4/16H,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 LD6836CX4/16H,315?
For technical support, including LD6836CX4/16H,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6836CX4/16H,315 requirements.
6.How does Aetrix verify that LD6836CX4/16H,315 is sourced from the original manufacturer or authorized distributors?
All LD6836CX4/16H,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 LD6836CX4/16H,315 meets industry standards.
7.What is the process for return or replacement of LD6836CX4/16H,315?
All LD6836CX4/16H,315 units undergo pre-shipment inspection (PSI). If there is an issue with LD6836CX4/16H,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 LD6836CX4/16H,315 part is unused and in its original packaging.
Return procedure for LD6836CX4/16H,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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