Overview
The NCP6334CMTAATBG, part of the NCP6334B/C family, is a 3 MHz, 2 A synchronous buck converter produced by onsemi. This device is optimized for supplying different subsystems in portable applications powered by one cell Li-ion or three cell Alkaline/NiCd/NiMH batteries. It features a high-efficiency design with synchronous rectification and automatic PWM/PFM power save mode, making it ideal for applications requiring low ripple and adjustable output voltage.
The NCP6334CMTAATBG is packaged in a space-saving, low-profile 2.0 x 2.0 x 0.75 mm WDFN-8 package, making it suitable for super thin applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.3 to 5.5 | V |
| Output Current | Up to 2 A | A |
| Switching Frequency | 3 MHz | MHz |
| Output Voltage Range | 0.6 to VIN | V |
| Soft Start Time | 0.4 to 1 ms | ms |
| Thermal Shutdown Threshold | 150 °C | °C |
| Package Type | WDFN-8, 2 x 2 mm, 0.5 mm Pitch | |
| Maximum Height | 0.8 mm | mm |
Key Features
- External adjustable output voltage
- Synchronous rectification for improved efficiency
- Automatic PWM/PFM power save mode
- Enable input for device control
- Power Good output option (NCP6334B) or external mode selection (NCP6334C)
- Soft start to limit inrush current
- Over current protection with cycle-by-cycle current limitation
- Active output discharge when disabled
- Thermal shutdown protection
- Pb-Free device
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 NCP6334CMTAATBG?
The input voltage range is from 2.3 V to 5.5 V.
- What is the maximum output current of the NCP6334CMTAATBG?
The device can deliver up to 2 A of output current.
- What is the switching frequency of the NCP6334CMTAATBG?
The switching frequency is 3 MHz.
- Does the NCP6334CMTAATBG support external mode selection?
- What is the purpose of the Power Good output option in the NCP6334B model?
The Power Good output option indicates whether the device is in a power good state or not.
- How does the soft start feature work in the NCP6334CMTAATBG?
The soft start feature limits inrush current by ramping up the output voltage over a specified time after the enable signal is applied.
- What protection mechanisms are built into the NCP6334CMTAATBG?
The device includes over current protection, thermal shutdown protection, and active output discharge when disabled.
- What is the typical thermal shutdown threshold of the NCP6334CMTAATBG?
The thermal shutdown threshold is typically 150 °C.
- Is the NCP6334CMTAATBG a Pb-Free device?
- What are some typical applications for the NCP6334CMTAATBG?
Typical applications include cellular phones, portable media players, digital still cameras, and USB powered devices.
- What is the package type and dimensions of the NCP6334CMTAATBG?
The device is packaged in a WDFN-8 package with dimensions of 2 x 2 mm and a 0.5 mm pitch.
