FAN2011/FAN2012: 1.5 A Low Voltage Synchronous Buck Regulators
Best combination of efficiency, performance, power density and size
The FAN2011 and FAN2012 are high-efficiency (95%), low-noise synchronous PWM current mode DC/DC converters. These buck regulators offer the best lineup of combined features for reducing system size, increasing functionality and decreasing board space. These integrated regulators have onchip MOSFETs and come in tiny 6-terminal 3 x 3 mm Molded Leadless Packages (MLP). The converters' adjustable output voltage (from 0.8 V to VIN) allows designers the flexibility to address a wide range of DC/DC applications. Their high fixed operating frequency (1.3 MHz) facilitates the use of smaller external components. Ideal for low-power applications, the FAN2011 is always "on", while the FAN2012 has an enable pin that offers designers the ability to implement power management schemes for power conservation.
Features and Benefits
- High efficiency (95%) allows for greater power density
- 1.5 A continuous load current replaces typical linear regulators in
low-voltage applications
- 1.3 MHz high operating frequency enables smaller overall design by requiring
smaller passive devices
- Compact 3 x 3 mm MLP packaging can withstand lower operating temperatures
and higher system reliability
Applications
Low voltage applications such as:
- Set-top boxes
- Hard disk drives
- Point of Load (POL) Power
- Communications equipment.



