Diodes AP139 - Manual (Page 2)

AP139
300mA LOW-NOISE CMOS LDO
AP139 Rev. 6 2 of 7 FEBRUARY 2009
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SOT25
1 3 2
5 4
BYP
V
IN
EN GND
V
OUT
AP139
Pin
Name
Pin No. Description
V
IN
1 Power Supply
GND 2 Ground
EN 3 Enable Pin
BYP 4 Bypass Signal Pin
V
OUT
5 Output
Block Diagram
Current
Limit
Thermal
Shutdown
AMP
+
-
Vref
BYP
EN
1uA
V
OUT
GND
V
IN
R1
R2
Absolute Maximum Ratings
Symbol Parameter Rating Unit
V
IN
Input Voltage +6 V
I
OUT
Output Current P
D
/(V
IN
-V
O
) mA
V
OUT
Output Voltage GND - 0.3 to V
IN
+ 0.3 V
ESD Classification B
T
OP
Operating Junction Temperature Range -40 to +125 ºC
T
MJ
Maximum Junction Temperature 150 ºC
P
D
Internal Power Dissipation 250 mW
Pin Assignments Pin Descriptions