FAN21SV06_12 Datasheet, PDF (1/17 Pages) Fairchild Semiconductor – TinyBuck™ 6 A, 24V Single-Input Integrated Synchronous Buck Regulator with Synchronization Capability

November 2012
FAN21SV06 — TinyBuck™
6 A, 24V Single-Input Integrated Synchronous Buck
Regulator with Synchronization Capability
Features
 Single-Supply Operation with 6 A Output Current
 Over 94% Efficiency
 Fully Synchronous Operation with Integrated
Schottky Diode on Low-Side MOSFET Boosts
Efficiency
 Single Supply Device for V_IN > 6.5 V – 24 V
 Programmable Frequency Operation (200-600 KHz)
 Externally Synchronizable Clock with Master/Slave
Provisions
 Wide Input Range with Dual Supply: 3.0 V to 24 V
 Output Voltage Range: 0.8 V to 80%V_IN
 Power-Good Signal
 Accepts Ceramic Capacitors on Output
 External Compensation for Flexible Design
 Starts Up on Pre-Bias Outputs
 Integrated Bootstrap Diode
 Programmable Over-Current Protection
 Under-Voltage, Over-Voltage, and Thermal-
Shutdown Protections
 5x6 mm, 25-pin, 3-pad MLP
Applications
 Servers & Telecom
 Graphics Cards & Displays
 High-End Computing Systems
 Set-Top Boxes & Game Consoles
 Point-of-Load Regulation
Description
The FAN210SV06 TinyBuck^TM is a highly efficient,
small-footprint, programmable-frequency, 6 A integrated
synchronous buck regulator.
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 5 V
regulator enables single-supply operation for input
voltages >6.5 V.
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.
External compensation, programmable switching
frequency, and current-limit features allow for design
optimization and flexibility. High-frequency operation
allows for all ceramic solutions.
Fairchild’s advanced BiCMOS power process combined
with low-R_DS(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.
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.
Related Resources
 TinyCalc™ Calculator Design ToolAN-6033 —
FAN21SV06 Design Guide
 AN-8022 — TinyCalc™ Calculator
Ordering Information
Part Number
FAN21SV06MPX
FAN21SV06EMPX
Operating
Temperature Range
-10°C to 85°C
-40°C to 85°C
Package
Molded Leadless Package (MLP) 5x6 mm
Molded Leadless Package (MLP) 5x6mm
Packing
Method
Tape and Reel
Tape and Reel
© 2006 Fairchild Semiconductor Corporation
FAN21SV06 Rev. 1.0.3
www.fairchildsemi.com