My Inquiry
My Account
onsemi NCP6324CMTAATBG
- Part No.:
- NCP6324CMTAATBG
- Manufacturer:
- onsemi
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
NCP6324CMTAATBG.pdf
- Description:
- IC REG BUCK ADJ 2A 8WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,965
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP6324CMTAATBG from onsemi is a synchronous buck converter IC optimized for portable subsystems powered by single-cell Li-ion or triple-cell alkaline/NiMH batteries. It delivers up to 2 A output current with externally adjustable voltage (0.6 V to VIN), operates at 3 MHz switching frequency, and features automatic PWM/PFM mode selection via the MODE pin. It is used in smartphone power rails, USB-powered devices, and point-of-load regulation where compact size and high efficiency under light-to-heavy load variation are critical.
For engineers reviewing the NCP6324CMTAATBG datasheet, pinout, applications, or equivalent options, this page provides verified technical context, validated pin functions, confirmed package dimensions, real-world application cards, and two rigorously cross-checked alternative parts - all derived from onsemi's official NCP6324/D Rev. 9 datasheet and ordering documentation.
Technical Context
The NCP6324CMTAATBG implements voltage-mode control with input feedforward compensation to maintain regulation across 2.5 V–5.5 V input range. Its 3 MHz fixed-frequency PWM operation ensures minimal external passive size, while adaptive PFM mode engages automatically below ~200 mA load to reduce quiescent current to 5.7 mA.
It integrates complementary P- and N-channel MOSFETs with typical RON_H = 160 mΩ and RON_L = 110 mΩ at 3.6 V, enabling high-efficiency conversion without external switches. The MODE pin (Pin 6) directly controls mode selection: >1.1 V forces forced PWM; <0.4 V enables automatic PFM/PWM transition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 5.5 V - supports single-cell Li-ion (2.7–4.2 V) and triple-cell alkaline (3.0–4.5 V) without input pre-regulation |
| Output Current | Up to 2.0 A - sufficient for core logic, memory, or RF subsystems in portable devices |
| Switching Frequency | 3.0 MHz (±10%) - enables use of ≤1.0 µH inductors and 10 µF ceramic output capacitors |
| Feedback Reference Voltage | 600 mV (±1%) - sets output voltage via external resistor divider; enables 0.6 V to VIN adjustment |
| Quiescent Current | 5.7 mA in forced PWM mode - balances low-noise regulation and light-load efficiency |
| Thermal Shutdown Threshold | 150 °C (typical) - protects die during sustained overload or poor PCB thermal design |
| Enable Input Threshold | 1.1 V (high), 0.4 V (low) - compatible with standard GPIOs and sequenced supply rails |
Pinout & Package
The NCP6324CMTAATBG uses a WDFN-8 (2.0 mm × 2.0 mm, 0.5 mm pitch, 0.75 mm max height) package with wettable flanks (Case 511BE), optimized for automated optical inspection and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - PGND | Power Ground | Primary return path for high-current switch node; must connect to system ground plane with low-inductance routing |
| 2 - SW | Switch Node | Drives external inductor; carries full switching current and high dv/dt; requires minimized loop area |
| 3 - AGND | Analog Ground | Reference for FB, EN, MODE, AVIN; should be star-connected to PGND at single point near exposed pad |
| 4 - FB | Feedback Input | Monitors output via resistor divider; internal 600 mV reference enables precise external voltage programming |
| 5 - EN | Enable Input | Digital control pin; active-high logic enables converter; internal 10 nA pull-down allows direct microcontroller connection |
| 6 - MODE/PG | Mode Selection | Configures operation: high = forced PWM; low = automatic PFM/PWM; not power-good (B-version only) |
| 7 - AVIN | Analog Supply | Bias rail for internal analog circuitry; requires local 1 µF ceramic bypass capacitor |
| 8 - PVIN | Power Input | Main input supply; requires ≥10 µF ceramic capacitor placed adjacent to pin to suppress switching noise |
| Exposed Pad | Thermal & Electrical Ground | Internally unconnected but must be soldered to PCB ground plane for thermal dissipation and EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated P- and N-MOSFETs eliminate external diode losses, improving efficiency by 8–12% vs. asynchronous designs |
| Active output discharge | 500 Ω internal discharge path from SW to PGND ensures rapid output collapse when disabled - critical for sequencing-sensitive loads |
| Soft-start timing | 100 µs (10%–90% ramp) limits inrush current and prevents input rail droop during enable |
| Cycle-by-cycle current limit | 2.8 A peak threshold protects against short-circuit and overload; enables predictable fault behavior in transient conditions |
| UVLO with hysteresis | 2.4 V turn-on threshold with 100 mV hysteresis prevents oscillation during brown-out conditions |
Applications
| Smartphone Core Rail | USB-Powered IoT Sensor Hub |
|---|---|
Use Scenario: Powers application processor I/O or GPU voltage domain in space-constrained smartphones using single-cell battery input. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering dynamically scaled 0.8–1.2 V at up to 2 A with fast load transient response. Use Value: 3 MHz operation enables 1.0 µH inductor and 10 µF output capacitor, reducing solution footprint by >40% vs. 1 MHz converters. |
Use Scenario: Supplies 3.3 V to BLE/Wi-Fi SoC and sensors in battery-operated USB-C powered edge nodes. IC Role / Device Role / Timing Role: Point-of-load regulator converting 5 V USB input to stable 3.3 V with automatic PFM entry below 50 mA. Use Value: 5.7 mA quiescent current in PWM mode and seamless PFM transition extend runtime in sleep states without external mode control. |
| Digital Camera Image Sensor Bias | Portable Media Player Audio Codec |
Use Scenario: Generates clean, low-noise 1.8 V bias for CMOS image sensor analog front-end in compact digital still cameras. IC Role / Device Role / Timing Role: High PSRR buck converter with tight line/load regulation (±0.5%/A, ±0%/V) and soft-start-controlled ramp. Use Value: 600 mV feedback reference and 0.1% FB voltage tolerance ensure accurate output setting; AGND/PGND separation minimizes sensor noise coupling. |
Use Scenario: Provides 1.2 V core supply to audio DSP and 3.3 V I/O supply to codec in portable media players with alkaline battery input. IC Role / Device Role / Timing Role: Dual-rail capable buck converter supporting wide 2.5–5.5 V input and programmable outputs via FB divider. Use Value: Input feedforward control maintains stable regulation across 4.5 V (fresh alkaline) to 3.0 V (depleted), eliminating need for input pre-buck stage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2143GJ-Z | 2.5–5.5 V input, 3 A output, 2 MHz switching, no MODE pin - fixed auto-PWM/PFM | Lacks external mode forcing; higher current rating but larger solution size due to lower frequency | Select when 3 A capability and simpler control interface outweigh need for forced PWM mode. |
| TPS62231DRVR | 2.05–6.0 V input, 600 mA output, 3–4 MHz, integrated soft-start and power good - smaller current, different pinout | Not suitable for 2 A loads; lacks MODE pin and active discharge; targets ultra-low-power microcontrollers | Select only for sub-600 mA applications where board space is more constrained than current demand. |
Compared with MP2143GJ-Z and TPS62231DRVR, the NCP6324CMTAATBG uniquely supports external forced-PWM mode selection and 2 A continuous output in a 2×2 mm wettable flank package - making it optimal for portable systems requiring both high efficiency at light load and deterministic timing at heavy load.
Availability
NCP6324CMTAATBG is available at Aetrix Electronics and suitable for smartphone power management, USB-C peripheral regulation, and portable imaging subsystems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP6324CMTAATBG 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 specializing in energy-efficient power management, analog, and sensor solutions for automotive, industrial, and portable electronics.
The NCP6324CMTAATBG belongs to onsemi's NCP6324 family of high-frequency synchronous buck converters, designed specifically for space- and efficiency-critical subsystems in battery-powered portable equipment.
FAQ
What is the function of the MODE pin on the NCP6324CMTAATBG?
The MODE pin (Pin 6) on the NCP6324CMTAATBG selects operating mode: a voltage >1.1 V forces continuous PWM operation, while <0.4 V enables automatic PFM/PWM transition for light-load efficiency. This differs from the NCP6324B variant, which uses Pin 6 as an open-drain Power Good output. The NCP6324CMTAATBG does not support Power Good functionality.
Does the NCP6324CMTAATBG include internal MOSFETs?
Yes, the NCP6324CMTAATBG integrates both high-side (P-channel) and low-side (N-channel) power MOSFETs. Typical RON_H is 160 mΩ and RON_L is 110 mΩ at 3.6 V input, eliminating the need for external switches and simplifying layout. These MOSFETs support up to 2 A continuous output current with synchronous rectification.
What package type is used by the NCP6324CMTAATBG?
The NCP6324CMTAATBG uses a WDFN-8 package (Case 511BE): 2.0 mm × 2.0 mm body, 0.5 mm pin pitch, 0.75 mm maximum height, with wettable flanks for reliable solder-joint inspection. It is Pb-free, halogen-free, and RoHS compliant - matching the marking "C4" and shipping code "Tape & Reel, 3000 pcs" per onsemi's ordering table.
Can the NCP6324CMTAATBG be used with a 1.0 µH inductor and 10 µF output capacitor?
Yes - the NCP6324CMTAATBG is explicitly optimized for 1.0 µH inductors and 10 µF ceramic output capacitors, as confirmed in its datasheet's "Typical Application Circuits" and "Output Filter Design Considerations." This combination yields ~50 kHz double-pole frequency, aligning with the device's internal compensation network for stable regulation.
Is the NCP6324CMTAATBG suitable for automotive applications?
No - the NCP6324CMTAATBG is the commercial-grade NCP prefix version. For automotive use, onsemi offers the NCV6324CMTAATBG (NCV prefix), which is AEC-Q100 qualified, PPAP capable, and manufactured under automotive-specific process controls. The NCP6324CMTAATBG is intended for portable consumer and industrial applications only.
NCP6324CMTAATBG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 2A
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WDFN (2x2)
NCP6324CMTAATBG FAQ
1.How can I place an order for NCP6324CMTAATBG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP6324CMTAATBG 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 NCP6324CMTAATBG reliable?
The price and inventory of NCP6324CMTAATBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP6324CMTAATBG is usually 5 days.
3.What payment methods are accepted for NCP6324CMTAATBG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP6324CMTAATBG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP6324CMTAATBG?
NCP6324CMTAATBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP6324CMTAATBG 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 NCP6324CMTAATBG?
For technical support, including NCP6324CMTAATBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP6324CMTAATBG requirements.
6.How does Aetrix verify that NCP6324CMTAATBG is sourced from the original manufacturer or authorized distributors?
All NCP6324CMTAATBG 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 NCP6324CMTAATBG meets industry standards.
7.What is the process for return or replacement of NCP6324CMTAATBG?
All NCP6324CMTAATBG units undergo pre-shipment inspection (PSI). If there is an issue with NCP6324CMTAATBG, 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 NCP6324CMTAATBG part is unused and in its original packaging.
Return procedure for NCP6324CMTAATBG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP6324CMTAATBG 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…
