My Inquiry
My Account
onsemi NCP6335DFCT1G
- Part No.:
- NCP6335DFCT1G
- Manufacturer:
- onsemi
- Package:
- 20-UFBGA, WLCSP
- Datasheet:
-
NCP6335DFCT1G.pdf
- Description:
- IC REG BUCK PROG 4A 20WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,864
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP6335DFCT1G from onsemi is a synchronous buck DC-DC converter optimized for core power delivery in portable Li-ion–powered systems, delivering up to 4.0 A output current with I²C-programmable output voltage (0.6 V to 1.4 V in 6.25 mV steps), 3 MHz fixed switching frequency, and transient load helper capability for shared-rail multi-converter architectures in smartphones and webtablets.
For engineers reviewing the NCP6335DFCT1G datasheet, pinout, applications, or equivalent options, key selection considerations include its modular driver architecture for scalable current handling, PFM/PWM auto-transition for efficiency across load range, active output discharge control, thermal warning/interrupt signaling, and support for dynamic voltage scaling (DVS) via I²C at up to 3.4 MHz.
Technical Context
The NCP6335DFCT1G implements voltage-mode control with integrated high-side (P-MOSFET, RONHS = 45 mΩ typ @ 5 V) and low-side (N-MOSFET, RONLS = 22 mΩ typ @ 5 V) synchronous switches, eliminating external diodes or discrete FETs. Its programmable peak current limit (IPEAK = 3.4–5.0 A) and nine-module output stage enable precise current scaling per application demand.
It supports three operational modes-auto PWM/PFM, forced PWM, and sleep/off-with configurable startup delay (0–14 ms), DVS ramp rates (6.25 mV/0.166 s up, 6.25 mV/2.666 s down), and thermal management including pre-warning (105°C), warning (135°C), and shutdown (150°C) thresholds with hysteresis. All digital interfaces (EN, VSEL, SCL/SDA) feature internal pull-downs and defined VIH/VIL levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 4.0 A continuous - supports processor core rail with transient load sharing capability |
| Input Voltage Range | 2.3 V to 5.5 V - compatible with single-cell Li-ion (2.7–4.2 V) and 5 V system rails |
| Output Voltage Range | 0.6 V to 1.4 V in 6.25 mV steps - enables fine-grained DVS for ARM Cortex-A/R cores |
| Switching Frequency | 3.0 MHz ±5% - allows use of compact 470 nH inductor and 2×22 µF output capacitors |
| Quiescent Current | 35 µA in PFM mode - extends battery runtime during light-load standby |
| Thermal Protection | 150°C shutdown with 30°C hysteresis - prevents irreversible junction damage under overload |
| I²C Interface Speed | Up to 3.4 MHz - enables fast DVS updates without CPU polling overhead |
Pinout & Package
Package: 2.0 mm × 1.6 mm, 0.4 mm pitch WLCSP-20 (Case 568AG), Pb-free, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AVIN | Analog Supply Input | Provides analog/digital bias for internal circuitry; decoupled with 1.0 µF ceramic capacitor |
| AGND | Analog Ground | Reference ground for error amplifier and I²C interface; must connect to system ground at single point |
| EN | Enable Control | Active-high digital input with internal pull-down; initiates power-up sequence on rising edge |
| VSEL | Voltage/Mode Select | Determines PROGVSEL0/PROGVSEL1 register selection for output voltage; internal pull-down |
| SCL / SDA | I²C Clock / Data | Bi-directional interface for DVS, configuration, and status monitoring; supports 3.4 MHz operation |
| PGND (×8 pins) | Power Ground | High-current return path for switch node; requires local copper plane to minimize EMI and voltage spikes |
| PVIN (×3 pins) | Power Input | High-current input supply; must be decoupled with 4.7 µF ceramic capacitor placed adjacent to pins |
| SW (×4 pins) | Switch Node | Drives external 470 nH inductor; all four pins carry phase current and require short, wide PCB traces |
| FB | Feedback Input | Connects directly to output capacitor positive terminal (not plane) for accurate regulation |
| PG / INTB | Power Good / Interrupt | Open-drain outputs for system monitoring; PG asserts when VOUT is within ±1% of target; INTB signals thermal/warning events |
Key Features
| Feature | Design Value |
|---|---|
| Modular Output Stage | Nine independently enabled driver modules allow current scaling from 2.5 A to 4.0 A without changing BOM |
| Transient Load Helper Mode | Shares output rail with another DC-DC without sinking current - eliminates cross-regulation issues in multi-rail systems |
| Dynamic Voltage Scaling (DVS) | Smooth, controlled dV/dt transitions (6.25 mV/0.166 s up, 6.25 mV/2.666 s down) prevent processor brownouts during frequency scaling |
| Active Output Discharge | Configurable discharge path (via DISCHG bit) ensures safe rail collapse during shutdown - critical for SoC reset integrity |
| Thermal Intelligence | Three-tier thermal response (pre-warning at 105°C, warning at 135°C, shutdown at 150°C) enables software-driven thermal throttling |
| Low-Noise PFM/PWM Transition | Automatic mode switching with no output voltage glitch - maintains stable core supply across 10 µA to 4 A load range |
Applications
| Smartphone Application | Webtablet Core Power |
|---|---|
Use Scenario: Dual-processor SoC requiring independent, dynamically scaled core voltages during performance vs. idle states. IC Role / Device Role / Timing Role: Primary core rail DC-DC converter with I²C-controlled DVS and transient load helper coordination with GPU rail. Use Value: Enables 15% longer battery life in video playback via PFM mode at sub-100 mA loads and <1% output voltage deviation during 2.5 A load transients. |
Use Scenario: High-resolution display subsystem demanding clean, low-noise 1.15 V core supply with rapid voltage transitions. IC Role / Device Role / Timing Role: Dedicated core power IC supporting fast DVS ramping (≤100 µs step) synchronized to display frame timing. Use Value: Achieves <±1% output accuracy over temperature and line variation, eliminating need for external feedback trimming. |
| Multi-Rail Portable System | Li-ion–Powered IoT Edge Node |
Use Scenario: Compact wearable with space-constrained PCB requiring minimal passive count and ultra-thin solution height. IC Role / Device Role / Timing Role: Compact 2.0 × 1.6 mm buck converter using 470 nH inductor and 2×22 µF 0603 caps for <0.6 mm profile. Use Value: Reduces total solution footprint by 35% versus comparable 3 A converters and enables single-layer ground plane design. |
Use Scenario: Battery-operated sensor hub needing ultra-low quiescent current during extended sleep cycles. IC Role / Device Role / Timing Role: Always-on core regulator maintaining 35 µA IQ in PFM mode while supporting wake-on-interrupt via INTB signal. Use Value: Extends 200 mAh coin cell lifetime to >18 months in periodic sensing mode with 10 s wake intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62400DRVR | 2.5 A max output, 2.25 MHz switching, no I²C interface - uses resistor-based VOUT setting | Lacks DVS, thermal interrupt, and transient load helper functionality | Select when fixed-output, cost-sensitive, non-DVS designs require proven TI reference design support |
| RTQ2132BWGE | 4 A output, 2.5 MHz, I²C interface, but no modular current scaling or pre-warning thermal threshold | Supports DVS but lacks 105°C pre-warning flag and programmable peak current limiting | Select when board space permits larger 3 mm × 3 mm QFN and thermal management relies on external host polling |
Compared with TPS62400DRVR and RTQ2132BWGE, the NCP6335DFCT1G uniquely integrates modular current scaling, three-tier thermal intelligence (105°C/135°C/150°C), and true transient load helper operation - enabling tighter system-level power coordination without additional sequencing logic or external components.
Availability
NCP6335DFCT1G is available at Aetrix Electronics and suitable for smartphone core power, webtablet SoC supply, multi-rail portable systems, Li-ion–powered IoT edge nodes, and compact wearable electronics requiring stable component supply and long-term production continuity.
Supply support for NCP6335DFCT1G 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 supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP6335DFCT1G belongs to onsemi's configurable power management IC portfolio, designed specifically for high-efficiency, space-constrained core power delivery in battery-powered portable electronics with dynamic voltage scaling requirements.
FAQ
What is the maximum output current capability of the NCP6335DFCT1G?
The NCP6335DFCT1G delivers up to 4.0 A continuous output current when configured with IPEAK[1..0] = 11, corresponding to a 5.0 A inductor peak current limit. This rating is validated across the full input voltage range (2.3 V to 5.5 V) and ambient temperature range (−40°C to +85°C), with thermal shutdown protection activating at 150°C junction temperature to ensure reliability.
How does the NCP6335DFCT1G support Dynamic Voltage Scaling (DVS)?
The NCP6335DFCT1G supports DVS through I²C-programmable output voltage registers (PROGVSEL0/PROGVSEL1), enabling smooth transitions between 0.6 V and 1.4 V in 6.25 mV steps. Voltage ramps are controlled with configurable dV/dt rates - 6.25 mV/0.166 s for upward transitions and 6.25 mV/2.666 s downward - ensuring processor stability during frequency scaling without brownout or overshoot.
What package type and dimensions does the NCP6335DFCT1G use?
The NCP6335DFCT1G uses a 20-pin Wafer-Level Chip-Scale Package (WLCSP-20), designated Case 568AG, measuring 2.0 mm × 1.6 mm with 0.4 mm pitch. It is Pb-free, RoHS-compliant, and rated MSL Level 1, allowing unlimited floor life at ≤30°C/60% RH without dry pack requirements.
Does the NCP6335DFCT1G require external compensation components?
No, the NCP6335DFCT1G integrates full voltage-mode control loop compensation, eliminating the need for external RC networks. The feedback path connects directly from the FB pin to the output capacitor's positive terminal, and stability is guaranteed with the recommended 470 nH inductor and 2×22 µF ceramic output capacitors across the full operating range.
Can the NCP6335DFCT1G operate as a transient load helper alongside another DC-DC converter?
Yes, the NCP6335DFCT1G is explicitly designed as a transient load helper. It shares the same output rail with another DC-DC converter without sinking current, providing instantaneous current support during load transients while the primary converter adjusts. This capability is enabled by its modular driver architecture and fast-response control loop, verified in application circuits with ≤±40 mV output deviation during 1.2 A load steps.
NCP6335DFCT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 20-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 1.4V
- Current - Output:
- 4A
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-WLCSP (1.62x2.02)
NCP6335DFCT1G FAQ
1.How can I place an order for NCP6335DFCT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP6335DFCT1G 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 NCP6335DFCT1G reliable?
The price and inventory of NCP6335DFCT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP6335DFCT1G is usually 5 days.
3.What payment methods are accepted for NCP6335DFCT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP6335DFCT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP6335DFCT1G?
NCP6335DFCT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP6335DFCT1G 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 NCP6335DFCT1G?
For technical support, including NCP6335DFCT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP6335DFCT1G requirements.
6.How does Aetrix verify that NCP6335DFCT1G is sourced from the original manufacturer or authorized distributors?
All NCP6335DFCT1G 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 NCP6335DFCT1G meets industry standards.
7.What is the process for return or replacement of NCP6335DFCT1G?
All NCP6335DFCT1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP6335DFCT1G, 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 NCP6335DFCT1G part is unused and in its original packaging.
Return procedure for NCP6335DFCT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP6335DFCT1G Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…
