HN9261/A
Function Block Diagram
VLX Limiter
Buffer
LX
Vref
LXSW
VOUT
GND
EXT
-
+
VFM Control
OSC 100kHz
Error Amp.
Chip Enable
EN
Notes:
(1) LX Pin...... only for 9261-
(2) EXT Pin.... only for 9261A-
(3) EN Pin...... only for 9261-
CX and 9261-
CX and 9261A-
CB and 9261A-
CB
CB
CB
Absolute Maximum Ratings
yꢀOutput Voltage ------------------------------------------------------------------------------------------------------ 8V
yꢀLX Pin Voltage ------------------------------------------------------------------------------------------------------ 8V
yꢀEXT Pin Voltage ---------------------------------------------------------------------------------------------------- –0.3 to VOUT +0.3V
yꢀEN Pin Voltage ------------------------------------------------------------------------------------------------------ –0.3 to VOUT +0.3V
yꢀLX Pin Output Current -------------------------------------------------------------------------------------------- 250mA
yꢀEXT Pin Current ---------------------------------------------------------------------------------------------------- 50mA
yꢀPower Dissipation, PD @TA=25 oC
SOT-89 ---------------------------------------------------------------------------------------------------------------- 0.5W
SOT-23 ---------------------------------------------------------------------------------------------------------------- 0.25W
yꢀPackage Thermal Resistance
SOT-89, șJC ---------------------------------------------------------------------------------------------------------- 100 oC/W
SOT-89, șJA ---------------------------------------------------------------------------------------------------------- 300 oC/W
SOT-23, șJA ---------------------------------------------------------------------------------------------------------- 250 oC/W
yꢀOperation Temperature Range ---------------------------------------------------------------------------------- –20 to +85 oC
yꢀStorage Temperature Range ------------------------------------------------------------------------------------- 165 oC
yꢀLead Temperature Range (Soldering, 10sec.) --------------------------------------------------------------- 260 oC
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3
HN [ NANJING HONANO ELECTRONIC CO., LTD. ]
