FAN8301 Datasheet, PDF (1/12 Pages) Fairchild Semiconductor – 2A, 16V, Non-Synchronous, Step-Down, DC/DC Regulator

November 2008
FAN8301
2A, 16V, Non-Synchronous, Step-Down, DC/DC Regulator
Features
ƒ 2A Output Current
ƒ 0.22Ω Internal Power MOSFET Switch
ƒ Wide 4.75V to 16V Operating Input Range
ƒ Output Adjustable from 0.6 to 14V
ƒ Stable with Low-ESR Output Ceramic Capacitors
ƒ Up to 90% Efficiency
ƒ Less than 20µA Shutdown Current
ƒ Fixed 370kHz Frequency
ƒ Thermal Shutdown with Hysteresis
ƒ Cycle-by-Cycle Over-Current Protection
ƒ Available in 8-Pin SOIC Package
Description
The FAN8301 is a monolithic, non-synchronous, step-
down (buck) regulator with internal power MOSFETs. It
achieves 2A continuous output current over a wide input
supply range with excellent load and line regulation.
Current-mode operation provides fast transient
response and eases loop stabilization. Fault condition
protection includes cycle-by-cycle current limiting and
thermal shutdown. The regulator draws less than 20µA
shutdown current. The FAN8301 requires a minimum
number of readily available standard external
components.
External compensation, enable, and programmable
soft-start features allow design optimization and
flexibility. Cycle-by-cycle current limit, frequency
foldback, and thermal shutdown provide protection
against shorted outputs.
Applications
ƒ Set-Top Boxes
ƒ DSL and Cable Modems
ƒ Distributed Power Systems
ƒ Consumer Appliances (DVD)
ƒ Auxiliary Supplies
Figure 1. Typical Application
Ordering Information
Part Number
FAN8301MX
Operating
Temperature Range
-40°C to +85°C
Package
8-SOIC
Eco Status
RoHS
Packing Method
Reel
For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2008 Fairchild Semiconductor Corporation
FAN8301 • Rev. 1.0.0
www.fairchildsemi.com