Date: 17/09/2008

Digital power controllers with high efficiency and flexibility

Fairchild Semiconductor launched new FD2004, FD2004-01 and FD2006 digital power controllers and the FD1505 digital power support driver. These products combine digital loop control with integrated power management capabilities to offer flexible, easy-to-design power delivery solutions and high efficiency over the entire range from light to full load.
Fairchild claims that, the device gives a full-load efficiency improvement up to three percent and a light-load efficiency increase greater than 15 percent in typical applications, reducing peak power dissipation by up to 20 percent.

Some of the key features of FD2004, FD2004-01 and FD2006 are,

1. Wide input voltage range from 3.0V to 14V
2. Can control output voltages as low as 0.54V and as high as 5.5V.
3. Can be used alone or connected in parallel to meet variety of load currents.
4. FD2006 contains a controller with 3A MOSFET drivers that support loads in excess of 40A with no external driver needed.
5. FD2004 & FD2004-01 are "controller-only" chips.
6. FD2004 can interface with external driver/MOSFET ICs and power train modules to provide power stage design flexibility.
7. The FD2004-01 is actually a FD2004 with the added benefit of high DC output voltage set-point accuracy (±0.2 percent).
8. All of these controllers include on-board I2C/SMBus compliant serial ports and support the Power Management Bus command set.

Features of FD1505 are,

1. A high-speed, high-current synchronous N-Channel synchronous-buck MOSFET driver.
2. Specifically designed for use with the FD2004 and FD2004-01.
3. It has dual PWM inputs that take advantage of the dynamic dead-time. optimization from the controllers to maximize power conversion efficiency.
4. It combines +5A/-4A low-side drive with ±3A high-side drive and up to 7.5V gate drive supply input to enable high efficiency at high step-down ratios and high switching frequencies.
5. Provides an adjustable gate drive current feature, which allows configurations of 50 percent or 100 percent of its full rated drive current.

Packaging: FD2004, FD2004-01 and FD2006 -- 5 x 5 mm 32-lead QFN
and 6 x 6 mm -36 lead QFN packages.
FD1505 -- 3 x 3 mm DFN package.

RoHS-compliant: Yes

Price: FD2004, FD2004-01 and FD2006 -- US $2.95 for each 1K pieces
FD1505 -- US $0.71 for each 1K pieces.

Availability: Samples available immediately with production quantities in 12 weeks

For more details visit:http://www.fairchildsemi.com