Preliminary
RT9262/A
VDD
LBI
LBO
Q2
N MOS
RT9262A
-
+
0.86V
FB
-
Q1
1.25V
+
Loop Control Circuit
N MOS
R1
VDD
R2
Shut Down
EN
Q3
N MOS Over Temp.
Detector
EXT
LX
GND
Absolute Maximum Ratings
Supply Voltage ----------------------------------------------------------------------------------------------------- −0.3V to 7V
LX Pin Switch Voltage -------------------------------------------------------------------------------------------- −0.3V to 7V
LDO Output Voltage ---------------------------------------------------------------------------------------------- −0.3V to (VDD + 0.3V)
Other I/O Pin Voltages ------------------------------------------------------------------------------------------- −0.3V to (VDD + 0.3V)
LX Pin Switch Current -------------------------------------------------------------------------------------------- 2.5A
EXT Pin Driver Current -------------------------------------------------------------------------------------------- 30mA
LBO Current -------------------------------------------------------------------------------------------------------- 30mA
Power Dissipation, PD @ TA = 25°C
SOP-8 ---------------------------------------------------------------------------------------------------------------- 0.625W
Package Thermal Resistance
SOP-8, θJA ---------------------------------------------------------------------------------------------------------- 160°C/W
Operating Junction Temperature ------------------------------------------------------------------------------- 150°C
Storage Temperature Range ------------------------------------------------------------------------------------ −65°C to +150°C
DS9262/A-11 March 2007
www.richtek.com
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