Overview
The NCV6323DMTAAWTBG is a synchronous buck converter produced by Onsemi, designed to supply various subsystems in portable applications powered by one-cell Li-ion or three-cell Alkaline/NiCd/NiMH batteries. This device is optimized for high efficiency and low ripple output voltage, making it suitable for a wide range of mobile and consumer electronics. It operates with a 3 MHz switching frequency, allowing the use of small-sized inductors and capacitors, which is beneficial for space-saving designs.
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 | WDFNW8 with wettable flanks | - |
| Package Dimensions | 2.0 x 2.0 x 0.75 mm | - |
| Thermal Shutdown Threshold | 170 | °C |
| High-Side MOSFET ON Resistance | 130 to 200 | mΩ |
| Low-Side MOSFET ON Resistance | 100 to 140 | mΩ |
| UVLO Falling Threshold | 2.4 | V |
| UVLO Hysteresis | 60 to 140 | mV |
Key Features
- Synchronous Rectification: Improves system efficiency by using an internal N-MOSFET as a synchronous rectifier.
- External Adjustable Voltage: Allows for adjustable output voltage.
- Enable Input and Power Good Output: Provides control over the device's operation and monitoring of the output voltage.
- Soft-Start: Limits inrush current during startup.
- Over Current Protection and Active Discharge: Protects the device from overcurrent and discharges the output capacitor when disabled.
- Thermal Shutdown Protection: Protects the device from overheating.
- Low Profile Package: WDFNW8 package with wettable flanks, suitable for super thin applications.
- AEC-Q100 Qualified and PPAP Capable: Meets automotive and other stringent application requirements.
- Pb-Free, Halogen Free/BFR Free, and RoHS Compliant: Environmentally friendly and compliant with regulatory standards.
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 NCV6323DMTAAWTBG?
The input voltage range is from 2.5 V to 5.5 V.
- What is the maximum output current capability of the NCV6323DMTAAWTBG?
The device can deliver up to 2 A of output current.
- What is the switching frequency of the NCV6323DMTAAWTBG?
The switching frequency is between 2.7 MHz and 3.3 MHz.
- What type of package does the NCV6323DMTAAWTBG come in?
The device comes in a WDFNW8 package with wettable flanks.
- Does the NCV6323DMTAAWTBG have thermal shutdown protection?
Yes, it has thermal shutdown protection that triggers when the die temperature exceeds 170°C.
- What is the purpose of the soft-start feature in the NCV6323DMTAAWTBG?
The soft-start feature limits the inrush current during startup, preventing voltage spikes and ensuring a smooth power-up sequence.
- How does the over current protection work in the NCV6323DMTAAWTBG?
The device has cycle-by-cycle current limitation, where the P-MOSFET is turned off if the inductor current exceeds the current limit threshold.
- Is the NCV6323DMTAAWTBG compliant with automotive standards?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other stringent applications.
- What is the typical output voltage range of the NCV6323DMTAAWTBG?
The output voltage range is from 0.6 V to the input voltage (VIN).
- Does the NCV6323DMTAAWTBG have a power good output feature?
Yes, it provides a power good output signal to indicate when the output voltage is established.
