My Inquiry
My Account
NXP Semiconductors LD6836CX4/16P,315
- Part No.:
- LD6836CX4/16P,315
- Manufacturer:
- NXP Semiconductors
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
LD6836CX4/16P,315.pdf
- Description:
- IC REG LINEAR 1.6V 300MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:9,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LD6836CX4/16P,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 × 0.76 × 0.47 mm), featuring 90 mV dropout at full load, 30 µVRMS output noise (10 Hz–100 kHz), and auto-discharge functionality via integrated pull-down transistor. It powers low-voltage analog/digital rails in space-constrained portable devices such as smartphone camera modules and PMIC sub-regulators.
For engineers reviewing the LD6836CX4/16P,315 datasheet, LD6836CX4/16P,315 pinout, LD6836CX4/16P,315 application, or LD6836CX4/16P,315 equivalent, this page delivers verified electrical specs, WLCSP4 terminal mapping, thermal resistance (130 K/W), PSRR (55 dB @ 1 kHz), and design-critical enable timing (150 µs startup, 300 µs shutdown).
Technical Context
The LD6836CX4/16P,315 implements a PMOS pass transistor architecture enabling ultra-low dropout (90 mV typ. @ 300 mA) and stable operation with only 0.7 µF output capacitance. Its active-HIGH enable input (VIH ≥ 1.1 V) controls an internal pull-down switch that discharges the output to ground during disable, eliminating residual voltage hold-up in battery-sensitive systems.
Designed for mobile power management, it integrates over-temperature shutdown (160 °C trigger, 20 K hysteresis), current limiting (600 mA short-circuit protection), and 10 kV HBM ESD robustness. The 30 µVRMS noise and 55 dB PSRR support noise-sensitive analog circuits like ADC references and RF front-end biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.6 V ±3% over −40 °C to +85 °C ambient; enables direct replacement of 1.6 V logic or analog supply rails without external feedback. |
| Dropout Voltage | 90 mV typical at 300 mA load; allows regulation from 1.69 V input, maximizing battery runtime in single-cell Li-ion (2.7–4.2 V) or coin-cell applications. |
| Quiescent Current | 0.1 µA typical in shutdown (VEN ≤ 0.4 V); reduces system standby power loss in always-on sensor nodes. |
| PSRR | 55 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters feeding noisy SoC domains. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz); meets low-noise requirements for precision analog signal chains and RF synthesizer VCO supplies. |
| Thermal Resistance | 130 K/W (junction-to-ambient); requires minimal PCB copper area for thermal management in compact WLCSP layouts. |
| Enable Timing | 150 µs startup to 95% VOUT; ensures fast power sequencing in multi-rail mobile processors with strict boot timing. |
Pinout & Package
Package: Wafer-Level Chip-Scale Package (WLCSP4), 0.4 mm pitch, 0.76 mm × 0.76 mm × 0.47 mm body size, solder bumps on bottom surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Supply ground reference | Primary return path for load current and internal bias; must connect to solid ground plane for noise immunity and thermal dissipation. |
| EN | Enable control input (active HIGH) | Logic-level input (VIH ≥ 1.1 V) that activates regulator and disables pull-down; compatible with 1.8 V/3.3 V GPIOs without level shifting. |
| OUT | Regulated output voltage | Delivers stable 1.6 V to load; connects directly to decoupling capacitor (min. 0.7 µF X7R) adjacent to pin for stability. |
| IN | Input voltage supply | Accepts 2.3–5.5 V input; requires local 0.7 µF input capacitor to suppress source impedance and ripple. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge function | Integrated 100 Ω pull-down transistor actively discharges OUT to GND when disabled, preventing floating outputs and enabling safe hot-swap or power-domain isolation. |
| Ultra-low noise output | 30 µVRMS noise floor supports high-resolution ADCs, audio codecs, and RF PLLs without requiring additional filtering stages. |
| High PSRR at low frequency | 55 dB rejection at 1 kHz mitigates ripple from buck converter switching frequencies and their harmonics in mixed-signal SoC power trees. |
| Robust thermal protection | 160 °C junction shutdown with 20 K hysteresis prevents permanent damage during transient overload or poor PCB thermal design. |
| Small-footprint WLCSP | 0.76 mm × 0.76 mm footprint saves >70% board area vs. SOT23-5, enabling integration into camera modules and wearable sensors with strict Z-height limits. |
Applications
| Smartphone Camera Module Power | Portable Media Player Core Logic Supply |
|---|---|
Use Scenario: Powers image sensor analog front-end and ISP core in slim smartphone camera assemblies where board space and thermal headroom are severely constrained. IC Role / Device Role / Timing Role: Primary 1.6 V LDO delivering clean, low-noise bias to CMOS image sensor pixel arrays and analog-to-digital conversion circuitry. Use Value: 30 µVRMS noise prevents fixed-pattern noise in captured images; 90 mV dropout extends usable battery range by maintaining regulation down to 1.69 V input. | Use Scenario: Supplies 1.6 V core voltage to ARM-based application processors in handheld media players with dual-battery configurations. IC Role / Device Role / Timing Role: Secondary regulated rail enabled synchronously with main SoC power-on sequence via GPIO-controlled EN pin. Use Value: 150 µs startup time satisfies processor boot timing requirements; auto-discharge prevents latch-up during rapid battery swaps. |
| Digital Still Camera Sensor Bias | Wireless Headset Audio Codec Supply |
Use Scenario: Provides precision 1.6 V bias to high-speed CCD/CMOS sensors in compact digital cameras requiring minimal EMI and thermal rise. IC Role / Device Role / Timing Role: Low-noise analog supply rail isolated from noisy digital domains using dedicated LDO stage. Use Value: 55 dB PSRR rejects switching noise from nearby DC-DC converters; 130 K/W Rth(j-a) allows operation at +85 °C ambient without derating. | Use Scenario: Powers stereo audio codec and DAC in Bluetooth headsets where quiescent current directly impacts talk-time battery life. IC Role / Device Role / Timing Role: Always-on low-IQ regulator supplying codec reference and bias rails during standby and active modes. Use Value: 0.1 µA shutdown current minimizes parasitic drain; WLCSP4 footprint enables placement under audio IC for shortest trace lengths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B162MR-G | 1.6 V fixed output, 300 mA, SOT-25 package (2.9 × 2.8 mm); 120 mV dropout; no auto-discharge. | Larger footprint; lacks pull-down transistor - requires external discharge circuit for hot-swap safety. | Select when board area permits larger SMT package and auto-discharge is not required. |
| Richtek RT9013-16GB | 1.6 V fixed output, 300 mA, DFN-4 (1.0 × 1.0 mm); 150 mV dropout; 45 µVRMS noise; no auto-discharge. | Same footprint class but higher noise and dropout; no integrated pull-down. | Select when lower cost is prioritized over noise performance and discharge functionality. |
Compared with XC6210B162MR-G and RT9013-16GB, LD6836CX4/16P,315 provides superior noise (30 µVRMS vs. ≥45 µV), lower dropout (90 mV vs. ≥120 mV), and unique auto-discharge - critical for battery-powered systems requiring safe power domain isolation without added components.
Availability
LD6836CX4/16P,315 is available at Aetrix Electronics and suitable for smartphone camera modules, portable media player SoC power, digital still camera sensor bias, and wireless headset audio codec supply requiring stable component supply, tight tolerance regulation, and ultra-miniature packaging.
Supply support for LD6836CX4/16P,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 mobile applications, with leadership in power management and RF technologies.
The LD6836 series is part of NXP's ultra-low-noise, miniaturized LDO portfolio designed specifically for space-constrained portable electronics demanding high PSRR, fast enable timing, and integrated safety features like auto-discharge and thermal shutdown.
FAQ
What is the nominal output voltage of the LD6836CX4/16P,315?
The LD6836CX4/16P,315 delivers a fixed 1.6 V output voltage with ±3% tolerance across −40 °C to +85 °C ambient temperature and 1 mA to 300 mA load current. This value is laser-marked as "E" on the WLCSP4 package per Table 15 and confirmed in Table 5 of the datasheet.
Does the LD6836CX4/16P,315 include auto-discharge functionality?
Yes, the LD6836CX4/16P,315 incorporates an integrated pull-down transistor that provides low-ohmic output state during disable mode, actively discharging the output capacitor to ground. This is confirmed by the "P" suffix in its part number and detailed in Section 1.1 and Figure 4 of the datasheet.
What is the minimum recommended output capacitance for stable operation of the LD6836CX4/16P,315?
The LD6836CX4/16P,315 requires a minimum 0.7 µF ceramic output capacitor (X7R dielectric, ±30% tolerance) placed adjacent to the OUT pin. This value ensures stability across temperature and load conditions, as specified in Table 13 and Section 10.1 of the datasheet.
What is the thermal resistance (Rth(j-a)) of the LD6836CX4/16P,315 in its WLCSP4 package?
The LD6836CX4/16P,315 has a typical junction-to-ambient thermal resistance of 130 K/W when mounted on a standard two-layer PCB, as stated in Table 11. Effective heat dissipation requires solid copper connections from all four solder bumps to internal ground/power planes.
How does the enable pin (EN) of the LD6836CX4/16P,315 behave during power-up?
The LD6836CX4/16P,315 EN pin is active HIGH with VIH ≥ 1.1 V and VIL ≤ 0.4 V. When pulled HIGH, the regulator achieves 95% of its 1.6 V output within 150 µs (tstartup(reg)), as measured with 1 µF output capacitance and 300 mA load per Table 12.
LD6836CX4/16P,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)
LD6836CX4/16P,315 FAQ
1.How can I place an order for LD6836CX4/16P,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for LD6836CX4/16P,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 LD6836CX4/16P,315 reliable?
The price and inventory of LD6836CX4/16P,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LD6836CX4/16P,315 is usually 5 days.
3.What payment methods are accepted for LD6836CX4/16P,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LD6836CX4/16P,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LD6836CX4/16P,315?
LD6836CX4/16P,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LD6836CX4/16P,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 LD6836CX4/16P,315?
For technical support, including LD6836CX4/16P,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LD6836CX4/16P,315 requirements.
6.How does Aetrix verify that LD6836CX4/16P,315 is sourced from the original manufacturer or authorized distributors?
All LD6836CX4/16P,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 LD6836CX4/16P,315 meets industry standards.
7.What is the process for return or replacement of LD6836CX4/16P,315?
All LD6836CX4/16P,315 units undergo pre-shipment inspection (PSI). If there is an issue with LD6836CX4/16P,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 LD6836CX4/16P,315 part is unused and in its original packaging.
Return procedure for LD6836CX4/16P,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LD6836CX4/16P,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…
