RT8079 Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
componentes Descripción
Fabricante
RT8079 Datasheet PDF : 13 Pages
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RT8079
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Switching Frequency Setting and External Synchronization (RT/SYNC pin)
Switching Frequency Range in
RT Mode
fOSC
300 -- 2000 kHz
Oscillator Frequency
Switching Frequency Range in
ExtSYNC Mode
fSYNC
RRT = 180kΩ
-- 1000 -- kHz
300 -- 2000 kHz
MOSFET
High Side MOSFET Resistance
Low Side MOSFET Resistance
VBOOT − VSW = 5V
--
45
-- mΩ
--
42
-- mΩ
Current Limit
Current Limit Threshold
IL IM
Over Temperature Protection
4.2 6.6
--
A
Thermal Shutdown
Temperature
TSD
--
145
--
°C
Thermal Shutdown Hysteresis ΔTSD
--
20
--
°C
Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in
the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may
affect device reliability.
Note 2. θJA is measured at TA = 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7. θJC is
measured at the exposed pad of the package.
Note 3. Devices are ESD sensitive. Handling precaution is recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
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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