RT34063A Datasheet, PDF (1/13 Pages) Richtek Technology Corporation – DC-to-DC Converter Control Circuits

RT34063A
DC-to-DC Converter Control Circuits
General Description
The RT34063A Series is a monolithic control circuit
containing the primary functions required for DC-to-DC
converters.
These devices consist of an internal temperature
compensated reference, comparator, controlled duty cycle
oscillator with an active current limit circuit, driver and
high current output switch.
This series was specially designed to be incorporated in
step-down and step-up and Voltage-inverting applications
with a minimum number of external components.
Ordering Information
RT34063A
Package Type
N : DIP-8
S : SOP-8
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Note :
RichTek Pb-free and Green 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.
`100%matte tin (Sn) plating.
Features
z Operation from 3.0V to 30V Input
z Low Standby Current
z Current Limiting
z Internal Switch Current to 1.5A
z Output Voltage Adjustable
z Frequency Operation to 100kHz
z Precision 2% Reference
z RoHS Compliant and 100% Lead (Pb)-Free
Applications
z Saver for Cellular Phones
z DC-DC Converter Module
Pin Configurations
(TOP VIEW)
SC
SE 2
TC 3
GND 4
8 DRIVER
7 IPK
6 VCC
5 COMP
DIP-8 / SOP-8
Functional Pin Description
Pin Name
SC
SE
TC
GND
COMP
VCC
IPK
DRIVER
Pin Function
1.5A Switch Collector
Darlington Switch Emitter
Oscillator Timing Capacitor
Power GND
Feedback Comparator Inverting Input
Power Supply Input
Highside Current Sense Input VCC-V_IPK = 330mV
Driver Collector
DS34063A-13 March 2007
www.richtek.com
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