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LA8522 fiches techniques PDF

Linear Artwork - Step Down DC-DC Converter

Numéro de référence LA8522
Description Step Down DC-DC Converter
Fabricant Linear Artwork 
Logo Linear Artwork 





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LA8522 fiche technique
LA8522
300KHz, 2A/23V Step-Down DC-DC Converter
General Description
Features
LA8522 is a voltage mode, step-down DC-DC
converter that is designed to meet 2A output
current, and utilizes PWM control scheme that
switches with 300KHz fixed frequency.
The input voltage range of LA8522 is from 3.6V
to 23V, and available in adjustable output
voltage from 0.8V to VIN. The supply current is
only 3mA during operation and under 1uA in
shutdown.
This device provides an enable function that
can be controlled by external logic signal. It
also provides excellent regulation during line
or load transient. Other features of current
limit, thermal shutdown protection, and short
circuit protection are also included. Due to the
low RDS(ON) of the internal power MOSFET, this
device provides high efficiency step-down
applications. It can also operate with a
maximum duty cycle of 100% for use in low
drop-out conditions. The package is available
in standard SOP-8.
l Adjustable Output Voltage from 0.8V to VIN
l 3.6V to 23V Input Voltage Range
l Continuous 2A Output Capability
l 300KHz Oscillation Frequency
l 0.8V Reference Voltage
l 1uA Low Shutdown Current
l 3mA Low Supply Current
l 100% Duty Cycle
l Built-in Low RDS(ON) Power MOSFET
l No External Compensation Required
l Support Low ESR Output Ceramic Capacitors
l Adjustable Current Limit
l Short Circuit and Thermal Protection
l SOP-8 Package
l Meet RoHS Standard
Applications
l Broadband Communication Device
l LCD TV / Monitor
l Storage Device
l Wireless Application
Ordering Information
LA8522 1 2 3 4
1 (Package Type) => J: SOP
2 (Number of Pins) => G: 8 pin
3 (Output Voltage) => Blank: Adjustable
4 (Special Feature) => Blank: N/A
Available Part Number
LA8522JG
Marking Information
LA8522JG
1234
1 2 (Date Code)
For date code rule, please contact our sales
representative directly.
3 4 (Internal Code)
LA8522-A01
-1-
Aug. 27, 2009
Free Datasheet http://www.0PDF.com

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