RT9263
Preliminary
Pin Description
Pin No.
Pin Name
RT9263CCX5 RT9263ECX5
Pin Function
Output pin for driving external NMOS or NPN
--
1
EXT
When driving an NPN, a resistor should be added for limiting base
1
--
CE
Chip enable
RT9263CCX5 gets into shutdown mode when CE pin set to low.
2
2
VDD
Input positive power pin of RT9263
3
3
FB
Feedback input pin
Internal reference voltage for the error amplifier is 1.25V.
4
4
LX
Pin for switching
5
5
GND
Ground
Absolute Maximum Ratings
z Supply Voltage
z LX Pin Switch Voltage
z Other I/O Pin Voltages
z LX Pin Switch Current
z EXT Pin Driver Current
z Power Dissipation, PD @ TA = 25°C
SOT89-5
• Package Thermal Resistance
SOT89-5, θJA
z Operating Junction Temperature
z Storage Temperature Range
-0.3V to 6V
-0.3V to (VDD + 0.8V)
-0.3V to (VDD + 0.3V)
2.5A
30mA
0.5W
300°C/W
150°C
-65°C ~ +150°C
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4
DS9263-00 November 2001