August 2009
FAN2106 — TinyBuck™
3-24V Input, 6A, High-Efficiency,
Integrated Synchronous Buck Regulator
Features
Description
The FAN2106 TinyBuck™ is a highly efficient, small-
footprint, constant-frequency, 6A, integrated
synchronous buck regulator.
6A Output Current
Wide Input Range: 3V - 24V
Output Voltage Range: 0.8V to 80% VIN
Over 95% Peak Efficiency
The FAN2106 contains both synchronous MOSFETs
and a controller/driver with optimized interconnects in
one package, which enables designers to solve high-
current requirements in a small area with minimal
external components. Integration helps to minimize
critical inductances, making component layout
simpler and more efficient compared to discrete
solutions.
1% Reference Accuracy Over Temperature
Programmable Frequency Operation: 200KHz to
600KHz
Fully Synchronous Operation with Integrated
Schottky Diode on Low-Side MOSFET Boosts
Efficiency
The
FAN2106
provides
for
external
loop
compensation, programmable switching frequency,
and current limit. These features allow design
flexibility and optimization. High-frequency operation
allows for all-ceramic solutions.
Internal Bootstrap Diode
Internal Soft-Start
Power-Good Signal
Starts on Pre-Biased Outputs
Accepts Ceramic Capacitors on Output
External Compensation for Flexible Design
Programmable Current Limit
The summing current-mode modulator uses lossless
current sensing for current feedback and over-current
protection. Voltage feedforward helps operation over
a wide input voltage range.
Fairchild’s advanced BiCMOS power process,
combined with low-RDS(ON) internal MOSFETs and a
thermally efficient MLP package, provide the ability to
dissipate high power in a small package.
Under-Voltage, Over-Voltage, and Thermal
Protections
5x6mm, 25-Pin, 3-Pad MLP Package
Output over-voltage, under-voltage, over-current, and
thermal shutdown protections help protect the device
from damage during fault conditions. FAN2106
prevents pre-biased output discharge during startup
in point-of-load applications.
Applications
Servers & Telecom
Graphics Cards & Displays
Computing Systems
Related Application Notes
Point-of-Load Regulation
Set-Top Boxes & Game Consoles
AN-8022 — TinyCalc™ Calculator
Ordering Information
Operating
Temperature Range
Eco
Part Number
Package
Packing Method
Status
Green
Green
FAN2106MPX
-10°C to 85°C
-40°C to 85°C
Molded Leadless Package (MLP) 5x6mm
Molded Leadless Package (MLP) 5x6mm
Tape and Reel
Tape and Reel
FAN2106EMPX
For Fairchild’s definition of please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2009 Fairchild Semiconductor Corporation
FAN2106 • Rev. 1.1.0
www.fairchildsemi.com