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onsemi NCV6336CFCCT1G
- Part No.:
- NCV6336CFCCT1G
- Manufacturer:
- onsemi
- Package:
- -
- Datasheet:
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NCV6336CFCCT1G.pdf
- Description:
- IC REG BUCK
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Product details
Overview
NCV6336CFCCT1G from onsemi is a synchronous buck DC-DC converter optimized as a transient load helper for portable applications powered by single-cell Li-ion or triple-cell alkaline/NiCd/NiMH batteries. It delivers up to 5.0 A output current, supports I²C-programmable output voltage from 0.6 V to 1.4 V in 6.25 mV steps, operates at 2.74 MHz switching frequency, and integrates high-side and low-side MOSFETs with RONHS = 23 mΩ and RONLS = 12 mΩ (at VIN = 5.0 V). It is used in smartphone core power rails to augment dynamic current demands alongside primary converters.
For engineers reviewing the NCV6336CFCCT1G datasheet, pinout, applications, or equivalent options, key selection considerations include its 2.74 MHz fixed-frequency operation enabling compact 330 nH inductor use, I²C-controlled dynamic voltage scaling (DVS) with programmable ramp rate, integrated thermal warning (105°C pre-warning, 135°C warning, 150°C shutdown), active output discharge, and automotive-grade AEC-Q100 qualification.
Technical Context
The NCV6336CFCCT1G implements voltage-mode control with fully integrated synchronous rectification, supporting automatic PWM/PFM mode transitions or forced PWM operation via I²C register programming. Its dual-register architecture (PROGVSEL0/PROGVSEL1) enables seamless DVS between two voltage levels selected by the VSEL pin state, with configurable slew rate via DVS[1..0] bits.
Thermal management includes three-tiered monitoring (pre-warning at 105°C, warning at 135°C, shutdown at 150°C), each generating dedicated interrupts; power sequencing supports Normal, Quick, and Fast startup modes depending on EN/VSEL state and sleep configuration; and transient load response is optimized for multi-shot 0.01–1.3 A steps with ±40 mV deviation under 100 ns edge rates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 5.0 A - configurable via IPEAK[1..0] register bits to match inductor saturation limits (e.g., 6.8 A peak for 5.0 A continuous). |
| Switching Frequency | 2.74 MHz (typical), range 2.46–3.01 MHz - enables use of ultra-small 330 nH inductors and low-profile 47 µF ceramic output capacitors. |
| Output Voltage Range | 0.6 V to 1.4 V in 6.25 mV steps - digitally programmable via I²C registers PROGVSEL0/PROGVSEL1, with hardware-selectable dual-voltage mapping via VSEL pin. |
| Quiescent Current | 35 µA (typical) in PFM mode - minimizes battery drain during light-load standby in always-on subsystems. |
| I²C Interface | Up to 3.4 MHz clock rate - supports fast DVS updates and real-time thermal event reporting without CPU polling overhead. |
| Thermal Protection | Three-level die temperature sensing (105°C/135°C/150°C) with interrupt outputs - enables proactive thermal throttling before shutdown occurs. |
| Package | WLCSP-20 (2.0 × 1.6 mm, 0.4 mm pitch, Case 568AG) - ultra-compact footprint for space-constrained mobile SoC power delivery. |
Pinout & Package
NCV6336CFCCT1G is housed in a 20-pin Wafer-Level Chip-Scale Package (WLCSP-20), Case 568AG, with 0.4 mm pitch and dimensions 2.0 mm × 1.6 mm × 0.4 mm maximum height. The package uses bottom-solder ball terminations and requires controlled thermal pad layout per onsemi's layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AVIN | Analog/Digital Supply Input | Provides bias for internal analog/digital circuitry; must be decoupled with 1.0 µF ceramic capacitor near pin. |
| AGND | Analog Ground Reference | Common return for analog blocks and I²C interface; must connect to system ground at single point to avoid noise coupling. |
| EN | Enable Control Input | Active-high digital enable with internal pull-down; initiates power-up sequence and determines startup mode (Normal/Quick/Fast). |
| VSEL | Configuration Select Input | Selects between PROGVSEL0/PROGVSEL1 registers for output voltage and operating mode; enables latency-free DVS toggling. |
| SCL / SDA | I²C Serial Interface | Supports bidirectional communication up to 3.4 MHz; includes internal pull-downs and ESD protection (2500 V HBM). |
| PG / INTB | Open-Drain Status Outputs | PG indicates output regulation status (90–94% threshold); INTB signals thermal warnings, UVLO, or fault events. |
| PVIN (×4) | Power Input Node | High-current input path for switch supply; all four pins must be connected with short, wide traces and decoupled by 4.7 µF ceramic cap. |
| SW (×4) | Switch Node Output | Drives external inductor; all four pins carry high di/dt switching current and require low-inductance routing to minimize EMI. |
| PGND (×8) | Power Ground Return | Carries high-frequency inductor return current; requires local ground plane connecting all eight pins to suppress ground bounce. |
| FB | Feedback Voltage Input | Connects directly to output capacitor anode via trace (not plane); sets regulated output voltage via internal resistor divider. |
Key Features
| Feature | Design Value |
|---|---|
| Transient Load Helper Architecture | Shares output rail with primary DC-DC without sinking current - provides instantaneous current boost during processor burst loads while avoiding rail collapse. |
| Configurable Dynamic Voltage Scaling (DVS) | Smooth, slew-rate-controlled voltage transitions between two I²C-programmed levels - eliminates processor glitches during frequency scaling. |
| Triple-Tier Thermal Monitoring | Dedicated interrupts for pre-warning (105°C), warning (135°C), and shutdown (150°C) - enables firmware-driven thermal mitigation before failure. |
| Active Output Discharge | On-chip discharge path activated within 100 µs of disable - ensures rapid rail collapse to prevent back-powering or latch-up in multi-rail systems. |
| AEC-Q100 Qualified | Grade 1 (−40°C to +125°C junction) qualification with PPAP capability - validated for automotive infotainment and ADAS subsystems requiring functional safety. |
Applications
| Smartphone Core Power | Automotive Infotainment SoC |
|---|---|
|
Use Scenario: Supplies CPU/GPU cores during burst-mode operation where current demand spikes exceed primary converter capability. IC Role / Device Role / Timing Role: Transient load helper that sources supplemental current on shared 1.15 V rail without disrupting primary regulator stability. Use Value: Maintains <±40 mV transient deviation during 0.2–1.5 A load steps, preventing processor throttling or reset during camera capture or gaming. |
Use Scenario: Powers application processor in head-unit systems requiring ASIL-B compatible power management. IC Role / Device Role / Timing Role: Secondary buck converter delivering dynamically scaled voltage to ARM Cortex-A cores under AUTOSAR OS control. Use Value: Enables DVS transitions with programmable dV/dt to meet ISO 26262 timing constraints while maintaining AEC-Q100 Grade 1 thermal reliability. |
| Webtablet Application Processor | Industrial Edge AI Module |
|
Use Scenario: Provides scalable core voltage to quad-core application processors in fanless tablet designs with strict thermal envelope. IC Role / Device Role / Timing Role: I²C-configurable buck converter supporting dual-voltage profiles (e.g., 1.0 V idle / 1.2 V active) via VSEL pin toggle. Use Value: Reduces average system power by 18% versus fixed-output alternatives through PFM efficiency (<35 µA IQ) at light loads. |
Use Scenario: Delivers stable 0.85 V core power to FPGA-based inference accelerators in sealed industrial gateways. IC Role / Device Role / Timing Role: High-reliability transient helper with thermal pre-warning interrupt to trigger fan speed ramp before thermal throttling. Use Value: Extends operational uptime by enabling predictive cooling via 105°C pre-warning interrupt, avoiding unplanned shutdowns in unattended deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4436GL-AEC1 | 4.5 A max output, 2.2 MHz switching, no integrated DVS or thermal pre-warning; requires external compensation. | Lacks I²C-controlled DVS and triple-tier thermal monitoring - suitable for static-voltage applications without dynamic scaling needs. | Choose when cost sensitivity outweighs need for fine-grained voltage control and advanced thermal telemetry. |
| TPS6286418RTER | 6 A output, 4 MHz switching, supports 0.3–1.54 V output, but only single-register DVS and no VSEL pin for hardware-triggered switching. | Higher current and frequency, but lacks latency-free VSEL-based DVS toggling and AEC-Q100 qualification. | Prefer for non-automotive high-performance computing modules needing >5 A, but not for automotive or ultra-low-latency DVS use cases. |
Compared with MPQ4436GL-AEC1 and TPS6286418RTER, the NCV6336CFCCT1G uniquely combines AEC-Q100 qualification, hardware-accelerated dual-voltage DVS via VSEL, and three-level thermal interrupt signaling - making it optimal for automotive infotainment and mobile SoC power where deterministic timing and functional safety coexist.
Availability
NCV6336CFCCT1G is available at Aetrix Electronics and suitable for smartphone core power, automotive infotainment SoC, and industrial edge AI module applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant performance.
Supply support for NCV6336CFCCT1G 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
onsemi is a global semiconductor leader focused on energy-efficient innovation, delivering silicon solutions for automotive, industrial, cloud, medical, and IoT applications with emphasis on functional safety and sustainability.
The NCV6336CFCCT1G belongs to onsemi's automotive-qualified power management IC portfolio, designed specifically for transient-critical sub-systems in battery-powered portable and vehicle-mounted electronics requiring high-density, thermally robust, and dynamically reconfigurable DC-DC conversion.
FAQ
What is the maximum output current capability of the NCV6336CFCCT1G?
The NCV6336CFCCT1G delivers up to 5.0 A continuous output current, configurable via the IPEAK[1..0] bits in the LIMCONF register. At IPEAK[1..0] = 11, the device supports 6.8 A peak inductor current, enabling robust operation with 5.0 A sustained load under worst-case thermal conditions. This rating assumes proper PCB thermal design per onsemi's WLCSP-20 layout guidelines and use of recommended 330 nH inductor and 47 µF output capacitance.
How does the NCV6336CFCCT1G implement Dynamic Voltage Scaling (DVS)?
The NCV6336CFCCT1G supports DVS through dual programmable voltage registers (PROGVSEL0 and PROGVSEL1), selected by the VSEL pin state. Voltage transitions are slew-rate controlled via DVS[1..0] bits in the TIME register, and can be triggered either by I²C write or hardware VSEL toggle - the latter providing latency-free switching ideal for real-time processor frequency scaling. The NCV6336CFCCT1G also supports forced PWM mode during DVS to ensure precise regulation without PFM-induced ripple.
Does the NCV6336CFCCT1G require external compensation components?
No, the NCV6336CFCCT1G features fully integrated feedback and compensation circuitry. Its voltage-mode control loop is internally compensated, eliminating the need for external RC networks or type-II/type-III compensators. This simplifies design, reduces BOM count, and improves layout robustness - especially critical in space-constrained mobile applications where the NCV6336CFCCT1G is commonly deployed.
What thermal protection features are included in the NCV6336CFCCT1G?
The NCV6336CFCCT1G incorporates three independent thermal thresholds: pre-warning at 105°C (configurable), warning at 135°C, and shutdown at 150°C (typical), each generating dedicated interrupt signals (INTB). These thresholds are monitored continuously during active operation and trigger corresponding status flags accessible via I²C. The thermal hysteresis values (6°C, 15°C, and 30°C respectively) prevent oscillation during recovery, ensuring stable system-level thermal management.
Is the NCV6336CFCCT1G pin-compatible with other members of the NCV6336 family?
Yes, the NCV6336CFCCT1G shares identical WLCSP-20 pinout and footprint with all variants in the NCV6336 family (e.g., NCV6336BMFCCT1G, NCV6336CVFCCT1G), including matching PVIN, SW, PGND, and signal pin locations. Differences between variants relate solely to factory-programmed default register settings (e.g., I²C address, default VOUT, DVS configuration), not physical connectivity - enabling drop-in replacement across qualified NCV6336 part numbers.
NCV6336CFCCT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
NCV6336CFCCT1G FAQ
1.How can I place an order for NCV6336CFCCT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV6336CFCCT1G 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 NCV6336CFCCT1G reliable?
The price and inventory of NCV6336CFCCT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV6336CFCCT1G is usually 5 days.
3.What payment methods are accepted for NCV6336CFCCT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV6336CFCCT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV6336CFCCT1G?
NCV6336CFCCT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV6336CFCCT1G 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 NCV6336CFCCT1G?
For technical support, including NCV6336CFCCT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV6336CFCCT1G requirements.
6.How does Aetrix verify that NCV6336CFCCT1G is sourced from the original manufacturer or authorized distributors?
All NCV6336CFCCT1G 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 NCV6336CFCCT1G meets industry standards.
7.What is the process for return or replacement of NCV6336CFCCT1G?
All NCV6336CFCCT1G units undergo pre-shipment inspection (PSI). If there is an issue with NCV6336CFCCT1G, 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 NCV6336CFCCT1G part is unused and in its original packaging.
Return procedure for NCV6336CFCCT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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