RT8063
®
DS8063-07 November 2012 www.richtek.com
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©
Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Applications
z LCD TV and Monitor
z Notebook Computers
z Distributed Power Systems
z IP Phones
z Digital Cameras
General Description
The RT8063 is a high efficiency synchronous, step-down
DC/DC converter. Its input voltage range is from 2.7V to
5.5V and provides an adjustable regulated output voltage
from 0.8V to 5V while delivering up to 3A of output current.
The internal synchronous low on resistance power
switches increase efficiency and eliminate the need for
an external Schottky diode. The default switching
frequency is set at 2MHz, if the RT pin is left open. It can
also be varied from 200kHz to 2MHz by adding an external
resistor. Current mode operation with external
compensation allows the transient response to be
optimized over a wide range of loads and output capacitors.
Ordering Information
3A, 2MHz, Synchronous Step-Down Converter
Note :
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
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High Efficiency : Up to 95%
z Adjustable Frequency : 200kHz to 2MHz
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z No Schottky Diode Required
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z 0.8V Reference Allows Low Output Voltage
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z Low Dropout Operation : 100% Duty Cycle
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z Enable Function
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z Internal Soft-Start
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z RoHS Compliant and Halogen Free
Pin Configurations
(TOP VIEW)
SOP-8 (Exposed Pad)
COMP
GND
EN
VIN
FB
RT
LX
LX
GND
2
3
4
5
6
7
8
9
Marking Information
RT8063GSP : Product Number
YMDNN : Date Code
RT8063
GSPYMDNN
Package Type
SP : SOP-8 (Exposed Pad-Option 2)
RT8063
Lead Plating System
G : Green (Halogen Free and Pb Free)
