Overview
The NCV6323DMTAATBG is a synchronous buck converter produced by Onsemi, designed to optimize power supply for various subsystems in portable applications. This device is capable of delivering up to 2 A of output current and operates with an adjustable output voltage. It is particularly suited for devices powered by one-cell Li-ion or three-cell Alkaline/NiCd/NiMH batteries. The converter features a high switching frequency of 3 MHz, enabling the use of small-sized inductors and capacitors, which is beneficial for space-constrained designs. The NCV6323 also incorporates synchronous rectification, input supply voltage feedforward control, and various protection mechanisms to ensure high efficiency and reliability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.5 to 5.5 | V |
| Output Current Capability | Up to 2 | A |
| Switching Frequency | 2.7 to 3.3 | MHz |
| Output Voltage Range | 0.6 to VIN | V |
| Package Type | WDFN8, WDFNW8 with wettable flanks | - |
| Maximum Height | 0.8 | mm |
| Thermal Shutdown Threshold | 170 | °C |
| ESD Rating (HBM) | 2000 | V |
| ESD Rating (MM) | 200 | V |
Key Features
- Synchronous Rectification: Improves system efficiency by reducing power losses.
- External Adjustable Voltage: Allows for flexible output voltage settings.
- High Switching Frequency: 3 MHz switching frequency enables the use of small inductors and capacitors.
- Input Supply Voltage Feedforward Control: Handles wide input voltage ranges effectively.
- Enable Input and Power Good Output: Provides control and monitoring of the converter status.
- Soft-Start and Active Discharge: Limits inrush current and discharges the output capacitor when disabled.
- Over Current Protection and Thermal Shutdown: Protects the device from overcurrent and overheating.
- Low Profile Package: WDFN8 and WDFNW8 packages with maximum 0.8 mm height for super thin applications.
- AEC-Q100 Qualified and PPAP Capable: Suitable for automotive and other applications requiring high reliability.
Applications
- Cellular Phones, Smart Phones, and PDAs
- Portable Media Players
- Digital Still Cameras
- Wireless and DSL Modems
- USB Powered Devices
- Point of Load
- Game and Entertainment Systems
Q & A
- What is the input voltage range of the NCV6323?
The input voltage range is from 2.5 V to 5.5 V.
- What is the maximum output current of the NCV6323?
The maximum output current is up to 2 A.
- What is the switching frequency of the NCV6323?
The switching frequency is between 2.7 MHz and 3.3 MHz.
- What types of packages are available for the NCV6323?
The device is available in WDFN8 and WDFNW8 packages with wettable flanks.
- Does the NCV6323 have thermal shutdown protection?
- How does the soft-start feature work in the NCV6323?
The soft-start feature limits inrush current by ramping up the output voltage over a specified time after the enable signal is applied.
- What is the purpose of the power good output in the NCV6323?
The power good output monitors the output voltage and provides a signal indicating whether the output voltage is within the regulated range.
- Is the NCV6323 suitable for automotive applications?
- How does the over current protection work in the NCV6323?
The device has cycle-by-cycle current limitation, where the P-MOSFET is turned off if the inductor current exceeds the current limit threshold.
- What is the ESD rating of the NCV6323?
The ESD rating is 2000 V for Human Body Model (HBM) and 200 V for Machine Model (MM).
