IRU1150CP IRF [International Rectifier], IRU1150CP Datasheet - Page 3

• Manufacturer Part Number: IRU1150CP
• Description: 4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR
• Manufacturer: IRF [International Rectifier]

Note 1: Low duty cycle pulse testing with Kelvin con-
nections is 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 #
Rev. 1.6
03/18/02
1
2
3
4
5
PIN SYMBOL
OUT
V
V
V
. It is measured when the output voltage
Adj
SENSE
V
CTRL
OUT
IN
IN
and V
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 drop out
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
required to maintain regu-
www.irf.com
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.
OUT
pin and ground sets the output voltage.
OUT
pin in order for the device to
IRU1150
OUT
3
in