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  Richtek Technology Electronic Components Datasheet  

RT8060A Datasheet

1A High Efficiency Step-Down Converter

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RT8060A
1.5MHz, 1A High Efficiency Step-Down Converter
General Description
The RT8060A is a current mode, high efficiency PWM
step-down DC/DC converter that can support a wide input
voltage range from 2.7V to 5.5V, while delivering up to 1A
output current. The current mode operation provides fast
transient response and eases loop stabilization.
A 1.5MHz frequency operation allows the use of a smaller
inductor to meet the space and height limitations handheld
applications.
The RT8060A is available in a SOT-23-5 package.
Ordering Information
RT8060A
Package Type
B : SOT-23-5
Lead Plating System
G : Green (Halogen Free and Pb Free)
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.
Marking Information
20=DNN
20 = : Product Code
DNN : Date Code
Features
z 2.7V to 5.5V Wide Input Voltage Range
z Adjustable Output Voltage
z 1A Output Current
z Up to 95% Efficiency
z 1.5MHz Fixed Frequency PWM Operation
z Power Good Indicator
z Over Current Protection
z Internal Sort-Start
z No Schottky Diode Required
z Internal Compensation
z RoHS Compliant and Halogen Free
Applications
z Storage Device : HDD/ODD
z Wireless and DSL Modems
Pin Configurations
(TOP VIEW)
FB VIN
54
23
PGOOD GND LX
SOT-23-5
Typical Application Circuit
L
VIN
4 VIN
LX 3
2.2µH
VOUT
CIN
4.7µF
RT8060A
FB
5
R1
200k
C1
10pF
COUT
10µF
1 PGOOD GND 2
R2
200k
DS8060A-00 March 2011
www.richtek.com
1


  Richtek Technology Electronic Components Datasheet  

RT8060A Datasheet

1A High Efficiency Step-Down Converter

No Preview Available !

RT8060A
Functional Pin Description
Pin No.
Pin Name
1 PGOOD
Power Good Indicator.
2 GND
Ground.
3 LX
Switch Node.
4 VIN
Supply Input.
5 FB
Feedback Input.
Pin Function
Function Block Diagram
Slope
Compensation
OSC &
Shutdown
Control
Current
Sense
Current
Limit
Detector
PWM
Comparator
Control
Logic
FB Error
Amplifier
RC
CCOMP
UVLO &
Power Good
Detector
VREF
Driver
VIN
RS1
LX
RS2
GND
PGOOD
www.richtek.com
2
DS8060A-00 March 2011


Part Number RT8060A
Description 1A High Efficiency Step-Down Converter
Maker Richtek
Total Page 10 Pages
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