August 2009
FAN2110 — TinyBuck™
3-24V Input, 10A, High-Efficiency, Integrated
Synchronous Buck Regulator
Features
Wide Input Voltage Range: 3V-24V
Wide Output Voltage Range: 0.8V to 80% VIN
10A Output Current
1% Reference Accuracy Over Temperature
Over 93% Peak Efficiency
Programmable Frequency Operation: 200KHz to
600KHz
Fully Synchronous Operation with Integrated
Schottky Diode on Low-Side MOSFET Boosts
Efficiency
Internal Bootstrap Diode
Power-Good Signal
Starts up on Pre-Bias Outputs
Accepts Ceramic Capacitors on Output
External Compensation for Flexible Design
Programmable Current Limit
Under-Voltage, Over-Voltage, and Thermal
Shutdown Protections
www.DataSheet4IUn.tceormnal Soft-Start
5x6mm, 25-Pin, 3-Pad MLP Package
Applications
Servers & Telecom
Graphics Cards & Displays
Computing Systems
Point-of-Load Regulation
Set-Top Boxes & Game Consoles
Description
The FAN2110 TinyBuck™ is a highly efficient, small
footprint, constant frequency, 10A integrated
synchronous Buck regulator.
The FAN2110 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.
The FAN2110 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.
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.
Output over-voltage, under-voltage, and thermal
shutdown protections help protect the device from
damage during fault conditions. FAN2110 also prevents
pre-biased output discharge during startup in point-of-
load applications.
Related Application Notes
AN-8022 — TinyCalc™ Calculator
Ordering Information
Operating
Part Number Temperature Range
FAN2110MPX
FAN2110EMPX
-10°C to 85°C
-40°C to 85°C
Package
Molded Leadless Package (MLP) 5x6mm
Molded Leadless Package (MLP) 5x6mm
Eco
Status
Green
Green
Packing
Method
Tape and Reel
Tape and Reel
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2008 Fairchild Semiconductor Corporation
FAN2110 • Rev. 1.0.2
www.fairchildsemi.com
