iru1160 International Rectifier Corp., iru1160 Datasheet - Page 3

• Manufacturer Part Number: iru1160
• Description: 6a Ultra Low Dropout Positive Adjustable Regulator -
• Manufacturer: International Rectifier Corp.

PARAMETER
Control Pin Current
Adjust Pin Current
Note 1: Low duty cycle pulse testing with Kelvin con-
nections are required in order to maintain accurate data.
Note 2: Dropout voltage is defined as the minimum dif-
ferential between V
lation at V
drops 1% below its nominal value.
PIN DESCRIPTIONS
PIN # PIN SYMBOL
BLOCK DIAGRAM
Rev. 1.4
08/20/02
1
2
3
4
5
V
CTRL
V
IN
OUT
V
V
V
5
4
. It is measured when the output voltage
Adj
SENSE
V
CTRL
OUT
IN
IN
SHUTDOWN
THERMAL
and V
CURRENT
This pin is the positive side of the reference which allows remote load sensing to achieve
excellent load regulation.
A resistor divider from this pin to the V
The output of the regulator. A minimum of 10mF capacitor must be connected from this
pin to ground to insure stability.
This pin is the supply pin for the internal control circuitry as well as the base drive for the
pass transistor. This pin must always be higher than the V
regulate. (See specifications)
The input pin of the regulator. Typically a large storage capacitor is connected from this
pin to ground to insure that the input voltage does not sag below the minimum dropout
voltage during the load transient response. This pin must always be higher than V
order for the device to regulate. (See specifications)
PIN DESCRIPTION
OUT
LIMIT
required to maintain regu-
Figure 2 - Simplified block diagram of the IRU1160.
SYM
I
+
ADJ
V
V
V
V
V
ADJ
CTRL
CTRL
CTRL
CTRL
=0V for all below conditions:
=2.75V, V
=2.75V, V
=2.75V, V
=2.75V, V
TEST CONDITION
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IN
IN
IN
IN
Note 3: Minimum load current is defined as the mini-
mum current required at the output in order for the out-
put voltage to maintain regulation. Typically the resistor
dividers are selected such that it automatically main-
tains this current.
=2.05V, Io=1.5A
=2.05V, Io=5A
=2.05V, Io=6A
=2.05V, V
OUT
pin and ground sets the output voltage.
ADJ
=0V
1.25V
MIN
OUT
pin in order for the device to
+
TYP
15
50
60
50
1
2
3
IRU1160
MAX
120
V
V
Adj
OUT
SENSE
UNITS
mA
mA
OUT
3
in