August 2009
FAN21SV06 — TinyBuck™
6A, 24V Single-Input Integrated Synchronous Buck
Regulator with Synchronization Capability
Features
Description
The FAN210SV06 TinyBuckTM is a highly efficient,
small-footprint, programmable-frequency, 6A integrated
synchronous buck regulator.
Single-Supply Operation with 6A Output Current
Over 94% Efficiency
Fully Synchronous Operation with Integrated
Schottky Diode on Low-Side MOSFET Boosts
Efficiency
FAN21SV06 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, thereby saving cost. On-board internal 5V
regulator enables single-supply operation for input
voltages >6.5V.
Single Supply Device for VIN > 6.5V – 24V
Programmable Frequency Operation (200-600KHz)
Externally Synchronizable Clock with Master/Slave
Provisions
The FAN21SV06 can be configured to drive multiple
slave devices OR synchronize to an external system
clock. In slave mode, FAN21SV06 may be set up to be
free-running in the absence of a master clock signal.
Wide Input Range with Dual Supply: 3.0V to 24V
Output Voltage Range: 0.8V to 80%VIN
Power-Good Signal
External compensation, programmable switching
frequency, and current-limit features allow for design
optimization and flexibility. High-frequency operation
allows for all ceramic solutions.
Accepts Ceramic Capacitors on Output
External Compensation for Flexible Design
Starts Up on Pre-Bias Outputs
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. Integration helps to
minimize critical inductances making layout simpler and
more efficient compared to discrete solutions.
Integrated Bootstrap Diode
Programmable Over-Current Protection
Under-Voltage, Over-Voltage, and Thermal-
Shutdown Protections
5x6mm, 25-pin, 3-pad MLP
Output over-voltage, under-voltage, over-current and
thermal-shutdown protections help protect the device
from damage during fault conditions. FAN21SV06
prevents pre-biased output discharge during startup in
point-of-load applications.
Applications
Servers & Telecom
Graphics Cards & Displays
High-End Computing Systems
Set-Top Boxes & Game Consoles
Point-of-Load Regulation
AN-6033 — FAN21SV06 Design Guide –
AN-8022 — TinyCalc™ Calculator
Ordering Information
Operating
Temperature Range Status
Eco
Packing
Method
Part Number
Package
FAN21SV06MPX
FAN21SV06EMPX
-10°C to 85°C
-40°C to 85°C
RoHS Molded Leadless Package (MLP) 5x6mm Tape and Reel
RoHS Molded Leadless Package (MLP) 5x6mm Tape and Reel
For Fairchild’s definition of please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2006 Fairchild Semiconductor Corporation
FAN21SV06 Rev. 1.0.1
www.fairchildsemi.com