RT8079 Datasheet, PDF (1/13 Pages) Richtek Technology Corporation – 2.95V to 6V Input, 3A Output, 2MHz, Synchronous Step-Down Converter

®
RT8079
2.95V to 6V Input, 3A Output, 2MHz, Synchronous
Step-Down Converter
General Description
The RT8079 is a high efficiency step-down converter and
capable of delivering 3A output current over a wide input
voltage range from 2.95V to 6V.
The RT8079 provides accurate regulation for a variety of
loads with ±3% accuracy. For reducing inductor size, it
provides up to 2MHz switching frequency. The efficiency
is maximized through the integrated 45mΩ MOSFETs
and 550μA typical supply current.
Under voltage lockout voltage of the RT8079 is 2.7V, and
it also provides external setting by a resistor network on
the enable pin.
The RT8079 provides protections such as inductor current
limit under voltage lockout and thermal shutdown. The
over temperature threshold is 145°C.
The RT8079 is available in WQFN-16L 3x3 package.
Ordering Information
RT8079
Package Type
QW : WQFN-16L 3x3 (W-Type)
Note :
Lead Plating System
G : Green (Halogen Free and Pb Free)
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Features
z Integrated 45mΩ MOSFETs
z Input Range : 2.95V to 6V
z Adjustable PWM Frequency : 300kHz to 2MHz
z Output Current : 3A
z 95% Efficiency
z Adjustable Soft-Start
z Power Good Indicator
z Enable Control
z Under Voltage Lockout
z Current Limit
z Thermal Shutdown
z 16-Lead WQFN Package
z RoHS Compliant and Halogen Free
Applications
z Low-Voltage, High-Density Power Systems
z Distributed Power Systems
z Point-of-Load Conversions
Marking Information
62=YM
DNN
62= : Product Code
YMDNN : Date Code
Simplified Application Circuit
RT8079
V_IN
VIN
SW
EN
PGOOD
SS/TR
RT/SYNC
BOOT
FB
COMP
GND
AGND
V_OUT
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
DS8079-01 February 2013
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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