Package Pin Description
PIN SYMBOL
PACKAGE PIN #
FUNCTION
3L TO-220
1
Adjust
This pin is connected to the low side of the internally trimmed
2% bandgap reference voltage and carries a bias current of
about 70µA. A resistor divider from Adj to VOUT and from Adj
to ground sets the output voltage. Also, transient response can
be improved by adding a small bypass capacitor from this pin
to ground.
2
3
VOUT
This pin is connected to the emitter of the power pass transistor
and provides a regulated voltage capable of sourcing 10A of
current.
VIN
This is the supply voltage for the regulator. For the device to
regulate, this voltage should be between 1.2V and 1.40V
(depending on the output current) greater than the output
voltage.
Block Diagram
VIN
BIAS
and
TSD
VREF
-
+
EA
IA
VOUT
+
-
Adj
Typical Performance Characteristics
90.00
73.00
I0=10mA
72.80
72.60
72.40
72.20
72.00
85.00
80.00
75.00
70.00
65.00
60.00
71.80
71.60
71.40
71.20
71.00
70.80
70.60
70.40
70.20
0
10 20 30 40 50 60 70 80 90 100110120130
Case (°C)
70.00
3.00
10.00
0.00
2.00
4.00 5.00 6.00 7.00 8.00 9.00
1.00
T
IOUT (A)
Adjust Pin Current Voltage vs Temperature
Adjust Pin Current vs IOUT
3
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
